CA2624282A1 - Anti-microbial paper products having a substituted 1,2-dihydroquinoline - Google Patents
Anti-microbial paper products having a substituted 1,2-dihydroquinoline Download PDFInfo
- Publication number
- CA2624282A1 CA2624282A1 CA002624282A CA2624282A CA2624282A1 CA 2624282 A1 CA2624282 A1 CA 2624282A1 CA 002624282 A CA002624282 A CA 002624282A CA 2624282 A CA2624282 A CA 2624282A CA 2624282 A1 CA2624282 A1 CA 2624282A1
- Authority
- CA
- Canada
- Prior art keywords
- paper product
- substituted
- dihydroquinoline
- group
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- IRFSXVIRXMYULF-UHFFFAOYSA-N 1,2-dihydroquinoline Chemical class C1=CC=C2C=CCNC2=C1 IRFSXVIRXMYULF-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000004599 antimicrobial Substances 0.000 title claims abstract description 35
- 230000000845 anti-microbial effect Effects 0.000 title claims abstract description 23
- -1 1,2-dihydroquinoline compound Chemical class 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 52
- 150000001875 compounds Chemical class 0.000 claims abstract description 34
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 235000006708 antioxidants Nutrition 0.000 claims abstract description 17
- 239000000123 paper Substances 0.000 claims description 153
- 230000012010 growth Effects 0.000 claims description 96
- DECIPOUIJURFOJ-UHFFFAOYSA-N ethoxyquin Chemical compound N1C(C)(C)C=C(C)C2=CC(OCC)=CC=C21 DECIPOUIJURFOJ-UHFFFAOYSA-N 0.000 claims description 58
- 239000003795 chemical substances by application Substances 0.000 claims description 38
- 241000233866 Fungi Species 0.000 claims description 24
- 150000003839 salts Chemical class 0.000 claims description 15
- 239000004094 surface-active agent Substances 0.000 claims description 15
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 12
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 claims description 12
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims description 12
- ULDHMXUKGWMISQ-UHFFFAOYSA-N carvone Chemical compound CC(=C)C1CC=C(C)C(=O)C1 ULDHMXUKGWMISQ-UHFFFAOYSA-N 0.000 claims description 12
- KSMVZQYAVGTKIV-UHFFFAOYSA-N decanal Chemical compound CCCCCCCCCC=O KSMVZQYAVGTKIV-UHFFFAOYSA-N 0.000 claims description 12
- RRAFCDWBNXTKKO-UHFFFAOYSA-N eugenol Chemical compound COC1=CC(CC=C)=CC=C1O RRAFCDWBNXTKKO-UHFFFAOYSA-N 0.000 claims description 12
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 12
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000000813 microbial effect Effects 0.000 claims description 12
- SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- GZIFEOYASATJEH-VHFRWLAGSA-N δ-tocopherol Chemical compound OC1=CC(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1 GZIFEOYASATJEH-VHFRWLAGSA-N 0.000 claims description 11
- AGBQKNBQESQNJD-UHFFFAOYSA-N lipoic acid Chemical compound OC(=O)CCCCC1CCSS1 AGBQKNBQESQNJD-UHFFFAOYSA-N 0.000 claims description 10
- 239000011087 paperboard Substances 0.000 claims description 10
- 230000010076 replication Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 9
- 229960002447 thiram Drugs 0.000 claims description 8
- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical compound OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000013055 pulp slurry Substances 0.000 claims description 7
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims description 7
- KJPRLNWUNMBNBZ-QPJJXVBHSA-N (E)-cinnamaldehyde Chemical compound O=C\C=C\C1=CC=CC=C1 KJPRLNWUNMBNBZ-QPJJXVBHSA-N 0.000 claims description 6
- 241000894006 Bacteria Species 0.000 claims description 6
- NPBVQXIMTZKSBA-UHFFFAOYSA-N Chavibetol Natural products COC1=CC=C(CC=C)C=C1O NPBVQXIMTZKSBA-UHFFFAOYSA-N 0.000 claims description 6
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 claims description 6
- GZIFEOYASATJEH-UHFFFAOYSA-N D-delta tocopherol Natural products OC1=CC(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 GZIFEOYASATJEH-UHFFFAOYSA-N 0.000 claims description 6
- 239000004287 Dehydroacetic acid Substances 0.000 claims description 6
- 239000005770 Eugenol Substances 0.000 claims description 6
- QAQJMLQRFWZOBN-LAUBAEHRSA-N L-ascorbyl-6-palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](O)[C@H]1OC(=O)C(O)=C1O QAQJMLQRFWZOBN-LAUBAEHRSA-N 0.000 claims description 6
- 239000011786 L-ascorbyl-6-palmitate Substances 0.000 claims description 6
- UVMRYBDEERADNV-UHFFFAOYSA-N Pseudoeugenol Natural products COC1=CC(C(C)=C)=CC=C1O UVMRYBDEERADNV-UHFFFAOYSA-N 0.000 claims description 6
- REVZBRXEBPWDRA-UHFFFAOYSA-N Stearyl citrate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CC(O)(C(O)=O)CC(O)=O REVZBRXEBPWDRA-UHFFFAOYSA-N 0.000 claims description 6
- 239000004138 Stearyl citrate Substances 0.000 claims description 6
- 235000010323 ascorbic acid Nutrition 0.000 claims description 6
- 229960005070 ascorbic acid Drugs 0.000 claims description 6
- 239000011668 ascorbic acid Substances 0.000 claims description 6
- 235000010385 ascorbyl palmitate Nutrition 0.000 claims description 6
- 229940117916 cinnamic aldehyde Drugs 0.000 claims description 6
- KJPRLNWUNMBNBZ-UHFFFAOYSA-N cinnamic aldehyde Natural products O=CC=CC1=CC=CC=C1 KJPRLNWUNMBNBZ-UHFFFAOYSA-N 0.000 claims description 6
- 229940043350 citral Drugs 0.000 claims description 6
- 235000019258 dehydroacetic acid Nutrition 0.000 claims description 6
- 229940061632 dehydroacetic acid Drugs 0.000 claims description 6
- JEQRBTDTEKWZBW-UHFFFAOYSA-N dehydroacetic acid Chemical compound CC(=O)C1=C(O)OC(C)=CC1=O JEQRBTDTEKWZBW-UHFFFAOYSA-N 0.000 claims description 6
- PGRHXDWITVMQBC-UHFFFAOYSA-N dehydroacetic acid Natural products CC(=O)C1C(=O)OC(C)=CC1=O PGRHXDWITVMQBC-UHFFFAOYSA-N 0.000 claims description 6
- 235000010389 delta-tocopherol Nutrition 0.000 claims description 6
- 229960002217 eugenol Drugs 0.000 claims description 6
- 235000004515 gallic acid Nutrition 0.000 claims description 6
- 229940074391 gallic acid Drugs 0.000 claims description 6
- WTEVQBCEXWBHNA-JXMROGBWSA-N geranial Chemical compound CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 claims description 6
- 229940087305 limonene Drugs 0.000 claims description 6
- 235000001510 limonene Nutrition 0.000 claims description 6
- 235000010387 octyl gallate Nutrition 0.000 claims description 6
- 239000000574 octyl gallate Substances 0.000 claims description 6
- NRPKURNSADTHLJ-UHFFFAOYSA-N octyl gallate Chemical compound CCCCCCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 NRPKURNSADTHLJ-UHFFFAOYSA-N 0.000 claims description 6
- 229940081310 piperonal Drugs 0.000 claims description 6
- 235000010388 propyl gallate Nutrition 0.000 claims description 6
- 239000000473 propyl gallate Substances 0.000 claims description 6
- 229940075579 propyl gallate Drugs 0.000 claims description 6
- 235000019330 stearyl citrate Nutrition 0.000 claims description 6
- 239000004250 tert-Butylhydroquinone Substances 0.000 claims description 6
- 235000019281 tert-butylhydroquinone Nutrition 0.000 claims description 6
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 6
- 235000012141 vanillin Nutrition 0.000 claims description 6
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims description 6
- 239000002446 δ-tocopherol Substances 0.000 claims description 6
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 claims description 5
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000005973 Carvone Substances 0.000 claims description 5
- QSJXEFYPDANLFS-UHFFFAOYSA-N Diacetyl Chemical group CC(=O)C(C)=O QSJXEFYPDANLFS-UHFFFAOYSA-N 0.000 claims description 5
- RPWFJAMTCNSJKK-UHFFFAOYSA-N Dodecyl gallate Chemical compound CCCCCCCCCCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 RPWFJAMTCNSJKK-UHFFFAOYSA-N 0.000 claims description 5
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 5
- 229940087168 alpha tocopherol Drugs 0.000 claims description 5
- 229940051881 anilide analgesics and antipyretics Drugs 0.000 claims description 5
- 150000003931 anilides Chemical class 0.000 claims description 5
- 239000003242 anti bacterial agent Substances 0.000 claims description 5
- 229940088710 antibiotic agent Drugs 0.000 claims description 5
- VEZXCJBBBCKRPI-UHFFFAOYSA-N beta-propiolactone Chemical compound O=C1CCO1 VEZXCJBBBCKRPI-UHFFFAOYSA-N 0.000 claims description 5
- QAYICIQNSGETAS-UHFFFAOYSA-N dazomet Chemical compound CN1CSC(=S)N(C)C1 QAYICIQNSGETAS-UHFFFAOYSA-N 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000012990 dithiocarbamate Substances 0.000 claims description 5
- 235000010386 dodecyl gallate Nutrition 0.000 claims description 5
- 239000000555 dodecyl gallate Substances 0.000 claims description 5
- 229940080643 dodecyl gallate Drugs 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 230000002401 inhibitory effect Effects 0.000 claims description 5
- 235000019136 lipoic acid Nutrition 0.000 claims description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical class CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 5
- 239000010661 oregano oil Substances 0.000 claims description 5
- 229940111617 oregano oil Drugs 0.000 claims description 5
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims description 5
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 5
- 229920000053 polysorbate 80 Polymers 0.000 claims description 5
- 229940068968 polysorbate 80 Drugs 0.000 claims description 5
- 229960000380 propiolactone Drugs 0.000 claims description 5
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 5
- 229960002663 thioctic acid Drugs 0.000 claims description 5
- 229960000984 tocofersolan Drugs 0.000 claims description 5
- 235000004835 α-tocopherol Nutrition 0.000 claims description 5
- 239000002076 α-tocopherol Substances 0.000 claims description 5
- 241000228212 Aspergillus Species 0.000 claims description 4
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 4
- 241000222120 Candida <Saccharomycetales> Species 0.000 claims description 4
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 claims description 4
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003508 Dilauryl thiodipropionate Substances 0.000 claims description 4
- 241000588914 Enterobacter Species 0.000 claims description 4
- 241000588748 Klebsiella Species 0.000 claims description 4
- 241000589516 Pseudomonas Species 0.000 claims description 4
- 241000235070 Saccharomyces Species 0.000 claims description 4
- 241000700605 Viruses Species 0.000 claims description 4
- 239000003093 cationic surfactant Substances 0.000 claims description 4
- ZAKOWWREFLAJOT-UHFFFAOYSA-N d-alpha-Tocopheryl acetate Natural products CC(=O)OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-UHFFFAOYSA-N 0.000 claims description 4
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 claims description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical class C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 4
- 150000004659 dithiocarbamates Chemical class 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- QERYCTSHXKAMIS-UHFFFAOYSA-N thiophene-2-carboxylic acid Chemical class OC(=O)C1=CC=CS1 QERYCTSHXKAMIS-UHFFFAOYSA-N 0.000 claims description 4
- 229940042585 tocopherol acetate Drugs 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000002845 discoloration Methods 0.000 abstract description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 38
- 239000004258 Ethoxyquin Substances 0.000 description 29
- 235000019285 ethoxyquin Nutrition 0.000 description 29
- 229940093500 ethoxyquin Drugs 0.000 description 29
- 238000012360 testing method Methods 0.000 description 27
- 230000002538 fungal effect Effects 0.000 description 23
- ONFOSYPQQXJWGS-UHFFFAOYSA-N 2-hydroxy-4-(methylthio)butanoic acid Chemical compound CSCCC(O)C(O)=O ONFOSYPQQXJWGS-UHFFFAOYSA-N 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 19
- 239000010949 copper Substances 0.000 description 17
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 16
- 229910021645 metal ion Inorganic materials 0.000 description 12
- QRNATDQRFAUDKF-UHFFFAOYSA-N 2-carbamothioylsulfanylethyl carbamodithioate Chemical compound NC(=S)SCCSC(N)=S QRNATDQRFAUDKF-UHFFFAOYSA-N 0.000 description 10
- 239000003139 biocide Substances 0.000 description 9
- 239000013522 chelant Substances 0.000 description 8
- 238000011534 incubation Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000003446 ligand Substances 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229920001817 Agar Polymers 0.000 description 5
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 5
- 239000008272 agar Substances 0.000 description 5
- 230000003115 biocidal effect Effects 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 229930182817 methionine Natural products 0.000 description 5
- HUHGPYXAVBJSJV-UHFFFAOYSA-N 2-[3,5-bis(2-hydroxyethyl)-1,3,5-triazinan-1-yl]ethanol Chemical compound OCCN1CN(CCO)CN(CCO)C1 HUHGPYXAVBJSJV-UHFFFAOYSA-N 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- CSNJTIWCTNEOSW-UHFFFAOYSA-N carbamothioylsulfanyl carbamodithioate Chemical compound NC(=S)SSC(N)=S CSNJTIWCTNEOSW-UHFFFAOYSA-N 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 239000002054 inoculum Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
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- 229930185605 Bisphenol Natural products 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 125000000174 L-prolyl group Chemical group [H]N1C([H])([H])C([H])([H])C([H])([H])[C@@]1([H])C(*)=O 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
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- 239000000839 emulsion Substances 0.000 description 3
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- 244000005700 microbiome Species 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
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- PNXWPUCNFMVBBK-UHFFFAOYSA-M 1-dodecylpyridin-1-ium;bromide Chemical compound [Br-].CCCCCCCCCCCC[N+]1=CC=CC=C1 PNXWPUCNFMVBBK-UHFFFAOYSA-M 0.000 description 2
- QOUSLZBAJRLUGM-UHFFFAOYSA-N 2-hydroxy-3,5-diiodo-n-(4-iodophenyl)benzamide Chemical compound OC1=C(I)C=C(I)C=C1C(=O)NC1=CC=C(I)C=C1 QOUSLZBAJRLUGM-UHFFFAOYSA-N 0.000 description 2
- 125000006512 3,4-dichlorobenzyl group Chemical group [H]C1=C(Cl)C(Cl)=C([H])C(=C1[H])C([H])([H])* 0.000 description 2
- RIFLOVCLRMLWFW-UHFFFAOYSA-N 5-bromo-2-hydroxy-n-phenylbenzamide Chemical compound OC1=CC=C(Br)C=C1C(=O)NC1=CC=CC=C1 RIFLOVCLRMLWFW-UHFFFAOYSA-N 0.000 description 2
- CTFFKFYWSOSIAA-UHFFFAOYSA-N 5-bromo-n-(4-bromophenyl)-2-hydroxybenzamide Chemical compound OC1=CC=C(Br)C=C1C(=O)NC1=CC=C(Br)C=C1 CTFFKFYWSOSIAA-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- 241001515917 Chaetomium globosum Species 0.000 description 2
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- 230000006866 deterioration Effects 0.000 description 1
- WCYBYZBPWZTMDW-UHFFFAOYSA-N dibutylazanide Chemical compound CCCC[N-]CCCC WCYBYZBPWZTMDW-UHFFFAOYSA-N 0.000 description 1
- 229960004698 dichlorobenzyl alcohol Drugs 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- KVKKJNWIWXXVLK-UHFFFAOYSA-N diisothiocyanatomethane Chemical compound S=C=NCN=C=S KVKKJNWIWXXVLK-UHFFFAOYSA-N 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- QKIUAMUSENSFQQ-UHFFFAOYSA-N dimethylazanide Chemical compound C[N-]C QKIUAMUSENSFQQ-UHFFFAOYSA-N 0.000 description 1
- OPGYRRGJRBEUFK-UHFFFAOYSA-L disodium;diacetate Chemical compound [Na+].[Na+].CC([O-])=O.CC([O-])=O OPGYRRGJRBEUFK-UHFFFAOYSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 1
- VYKKDKFTDMVOBU-UHFFFAOYSA-N flusalan Chemical compound OC1=C(Br)C=C(Br)C=C1C(=O)NC1=CC=CC(C(F)(F)F)=C1 VYKKDKFTDMVOBU-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- ACGUYXCXAPNIKK-UHFFFAOYSA-N hexachlorophene Chemical compound OC1=C(Cl)C=C(Cl)C(Cl)=C1CC1=C(O)C(Cl)=CC(Cl)=C1Cl ACGUYXCXAPNIKK-UHFFFAOYSA-N 0.000 description 1
- 150000001469 hydantoins Chemical class 0.000 description 1
- 125000006289 hydroxybenzyl group Chemical group 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 1
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 1
- MGJXBDMLVWIYOQ-UHFFFAOYSA-N methylazanide Chemical compound [NH-]C MGJXBDMLVWIYOQ-UHFFFAOYSA-N 0.000 description 1
- 229960002216 methylparaben Drugs 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- ZMNGZPLBFIDDAA-UHFFFAOYSA-N n-[3-(4-bromophenoxy)-5-chlorophenyl]-5-chloro-2-hydroxybenzamide Chemical compound OC1=CC=C(Cl)C=C1C(=O)NC1=CC(Cl)=CC(OC=2C=CC(Br)=CC=2)=C1 ZMNGZPLBFIDDAA-UHFFFAOYSA-N 0.000 description 1
- 239000004763 nomex Substances 0.000 description 1
- HVFSJXUIRWUHRG-UHFFFAOYSA-N oic acid Natural products C1CC2C3CC=C4CC(OC5C(C(O)C(O)C(CO)O5)O)CC(O)C4(C)C3CCC2(C)C1C(C)C(O)CC(C)=C(C)C(=O)OC1OC(COC(C)=O)C(O)C(O)C1OC(C(C1O)O)OC(COC(C)=O)C1OC1OC(CO)C(O)C(O)C1O HVFSJXUIRWUHRG-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 235000010235 potassium benzoate Nutrition 0.000 description 1
- 239000004300 potassium benzoate Substances 0.000 description 1
- 229940103091 potassium benzoate Drugs 0.000 description 1
- 235000010241 potassium sorbate Nutrition 0.000 description 1
- 239000004302 potassium sorbate Substances 0.000 description 1
- 229940069338 potassium sorbate Drugs 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 235000010232 propyl p-hydroxybenzoate Nutrition 0.000 description 1
- 239000004405 propyl p-hydroxybenzoate Substances 0.000 description 1
- 229960003415 propylparaben Drugs 0.000 description 1
- AOJFQRQNPXYVLM-UHFFFAOYSA-N pyridin-1-ium;chloride Chemical compound [Cl-].C1=CC=[NH+]C=C1 AOJFQRQNPXYVLM-UHFFFAOYSA-N 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 229950000975 salicylanilide Drugs 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000017454 sodium diacetate Nutrition 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000001540 sodium lactate Substances 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 150000003558 thiocarbamic acid derivatives Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
- A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Anti-miorobial papers contain a substituted 1,2-dihydroquinoline compound.
Anti-microbial paper products, methods of making such materials, and materials used to prepare such products involve the use of substituted 1,2-dihydroquinoline compounds. The compounds can be within, or on the surface of, the paper product. The compounds do not cause discoloration of the paper products. Additionally, anti-oxidants may be in the composition.
Anti-microbial paper products, methods of making such materials, and materials used to prepare such products involve the use of substituted 1,2-dihydroquinoline compounds. The compounds can be within, or on the surface of, the paper product. The compounds do not cause discoloration of the paper products. Additionally, anti-oxidants may be in the composition.
Description
ANTI-MICROBIAL PAPER PRODUCTS HAVING A
SUBSTITUTED 1,2-DIHYDROQUINOLINE
FIELD OF THE INVENTION
[0001] The invention generally provides paper products comprising antimicrobial agents and processes for making paper products comprising antimicrobial agents. In particular, the antimicrobial agent typically comprises a substituted 1,2-dihydroquinoline compound.
BACKGROUND OF THE INVENTION
SUBSTITUTED 1,2-DIHYDROQUINOLINE
FIELD OF THE INVENTION
[0001] The invention generally provides paper products comprising antimicrobial agents and processes for making paper products comprising antimicrobial agents. In particular, the antimicrobial agent typically comprises a substituted 1,2-dihydroquinoline compound.
BACKGROUND OF THE INVENTION
[0002] Paper and paper products are attractive sources for the growth of bacteria, fungi, and molds. Antimicrobial agents have been applied to the surface of the paper product after manufacture. If the coating is compromised, however, the paper or paper product is not longer protected from microbial growth.
Antimicrobial agents have also been added to the pulp during the paper making process, such that they are incorporated into the finished paper product. Generally, high concentrations of an antimicrobial agent must be added during manufacture to obtain substantial antimicrobial activity in the finished paper product. The use of high concentrations of antimicrobial agents not only increases the cost of manufacture, but may also introduce waste material that has to be treated before release into waterways, which further increases the cost of manufacture. There is a need, therefore, for alternative antimicrobial agents to provide protection to paper products. These antimicrobial agents should be effective at relatively low doses, should present no health and environmental concerns, and should not be cost prohibitive.
SUMMARY OF THE INVENTION
Antimicrobial agents have also been added to the pulp during the paper making process, such that they are incorporated into the finished paper product. Generally, high concentrations of an antimicrobial agent must be added during manufacture to obtain substantial antimicrobial activity in the finished paper product. The use of high concentrations of antimicrobial agents not only increases the cost of manufacture, but may also introduce waste material that has to be treated before release into waterways, which further increases the cost of manufacture. There is a need, therefore, for alternative antimicrobial agents to provide protection to paper products. These antimicrobial agents should be effective at relatively low doses, should present no health and environmental concerns, and should not be cost prohibitive.
SUMMARY OF THE INVENTION
[0003] One aspect of the invention provides a process of producing a paper product. The process comprises contacting a substituted 1,2-dihydroquinoline compound with a composition comprising pulp.
[0004] Yet another aspect of the invention encompasses a method of inhibiting microbial growth or replication in a paper product. The method comprises contacting a paper product with a substituted 1,2-dihydroquinoline compound.
[0005] A further aspect of the invention provides a paper product comprising paper and a substituted 1,2-dihydroquinoline compound.
Another aspect of the invention encompasses a composition comprising a substituted 1,2-dihydroquinoline compound and pulp or pulp slurry.
DETAILED DESCRIPTION OF THE INVENTION
Another aspect of the invention encompasses a composition comprising a substituted 1,2-dihydroquinoline compound and pulp or pulp slurry.
DETAILED DESCRIPTION OF THE INVENTION
[0006] It has been discovered that substituted 1,2-dihydroquinoline compounds function as anti-microbial agents when contacted with a paper product or when contacted with raw materials used in paper manufacturing. In a typical embodiment of the invention, the compound may be added during the paper manufacturing process, such as to pulp or pulp slurry, to inhibit microbial growth or replication in the paper manufacturing raw materials. Alternatively, the compound may be disposed within, on the surface, or within and on the surface of a paper product to inhibit microbial growth or replication on the paper product. The substituted 1,2-dihydroquinoline, when added to a paper product in an effective amount as illustrated in the examples, inhibits microbial growth and/or replication that could otherwise destroy the paper product or be harmful to the user of the paper product. Advantageously, the substituted 1,2-dihydroquinoline compounds also function as antioxidants, reducing oxidation of the paper product. Moreover, the substituted 1,2-dihydroquinolines are thermally stable at temperatures employed, and unlike some of the existing mold proofing agents used by the paper industry, they do not decompose or undergo the reaction of pyrolysis during paper and pulp processing, for example, drying and in a preferred embodiment; the compounds do not cause discoloration of the paper products.
I. Paper Products Having Substituted 1,2-Dihydroquinoline Compounds [0007] One aspect of the present invention provides paper products having substituted 1,2-dihydroquinoline compounds. Substituted 1,2-dihydroquinoline compounds suitable for use in the invention generally correspond to formula (I):
N R' H
I. Paper Products Having Substituted 1,2-Dihydroquinoline Compounds [0007] One aspect of the present invention provides paper products having substituted 1,2-dihydroquinoline compounds. Substituted 1,2-dihydroquinoline compounds suitable for use in the invention generally correspond to formula (I):
N R' H
(I) wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
[0008] In another embodiment, the substituted 1,2-dihydroquinoline will have formula (I) wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 4 carbons; and R5 is an alkoxy group having from 1 to about 4 carbons.
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
[0008] In another embodiment, the substituted 1,2-dihydroquinoline will have formula (I) wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 4 carbons; and R5 is an alkoxy group having from 1 to about 4 carbons.
[0009] In one preferred embodiment, the substituted 1,2-dihydroquinoline will be 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline having the formula:
H
N
6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, commonly known as ethoxyquin, is sold under the trademark SANTOQUIN . The present invention also encompasses salts of ethoxyquin and other compounds having formula (I). Ethoxyquin and other compounds having formula (I) may be purchased commercially from Novus International, Inc. or made in accordance with methods generally known in the art, for example, as detailed in U.S. Patent No. 4,772,710, which is hereby incorporated by reference in its entirety.
H
N
6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, commonly known as ethoxyquin, is sold under the trademark SANTOQUIN . The present invention also encompasses salts of ethoxyquin and other compounds having formula (I). Ethoxyquin and other compounds having formula (I) may be purchased commercially from Novus International, Inc. or made in accordance with methods generally known in the art, for example, as detailed in U.S. Patent No. 4,772,710, which is hereby incorporated by reference in its entirety.
[0010] Typically, in each embodiment described herein, the substituted 1,2-dihydroquinoline compound may be formulated as a liquid, powder or emulsion and contacted with the paper product. A suitable example of an emulsion formulation comprises approximately 70% by weight 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, approximately 23% by weight water, approximately 5% by weight Tween and approximately 2% by weight myverol 18-19.
[0011] As will be appreciated by a skilled artisan, the technique for contacting the substituted 1,2-dihydroquinoline compound with the paper product can and will vary, depending upon the paper product and its manufacturing process.
In one embodiment, the substituted 1,2-dihydroquinoline compounds may be incorporated into the paper product during its original manufacture. According to one alternative of this embodiment, the substituted 1,2-dihydroquinoline is typically contacted with at least one raw material in the paper manufacturing process, such as pulp or a mixture of pulp and water ("pulp slurry") to minimize spoilage of the paper, pulp or pulp slurry. Depending upon the embodiment, the pulp may be produced from a chemical pulping method or from a mechanical pulping method. The paper product of the invention is formed from the pulp slurry by extracting water from the slurry to form a paper web comprising paper fibers having interstices. Water may be removed from the pulp slurry according to generally known methods, for example, by applying negative pressure (vacuum) or heat.
In one embodiment, the substituted 1,2-dihydroquinoline compounds may be incorporated into the paper product during its original manufacture. According to one alternative of this embodiment, the substituted 1,2-dihydroquinoline is typically contacted with at least one raw material in the paper manufacturing process, such as pulp or a mixture of pulp and water ("pulp slurry") to minimize spoilage of the paper, pulp or pulp slurry. Depending upon the embodiment, the pulp may be produced from a chemical pulping method or from a mechanical pulping method. The paper product of the invention is formed from the pulp slurry by extracting water from the slurry to form a paper web comprising paper fibers having interstices. Water may be removed from the pulp slurry according to generally known methods, for example, by applying negative pressure (vacuum) or heat.
[0012] In another embodiment, the substituted 1,2-dihydroquinoline compounds may be contacted with the paper product contemporaneously as the interstices are formed. In this embodiment, the paper web having interstices may be passed through a size press, according to methods known in the art. The size press will typically comprise two squeeze rollers between which the paper web is passed.
As a part of the process, a composition comprising a substituted 1,2-dihydroquinoline compound and water or another suitable aqueous carrier, is dispensed, for example, through hoses emanating from one or more tanks and directed between the squeeze rollers. The squeeze rollers generally have a gap between them that defines the thickness of the paper web. As such, by setting the gap to a size equal to or smaller as compared to the thickness of the paper web, the substituted 1,2-dihydroquinoline compound may be forced into the interstices of the paper fibers. Penetration and distribution of the substituted 1,2-dihydroquinoline compound is achieved throughout a substantial portion of the thickness of the paper.
After passing the paper web through the sizing press, the paper web incorporated with the substituted 1,2-dihydroquinoline compound, may be passed over a heated drying drum to evaporate the remaining water. The paper product is then ready for production into a variety of products, as described in detail below.
As a part of the process, a composition comprising a substituted 1,2-dihydroquinoline compound and water or another suitable aqueous carrier, is dispensed, for example, through hoses emanating from one or more tanks and directed between the squeeze rollers. The squeeze rollers generally have a gap between them that defines the thickness of the paper web. As such, by setting the gap to a size equal to or smaller as compared to the thickness of the paper web, the substituted 1,2-dihydroquinoline compound may be forced into the interstices of the paper fibers. Penetration and distribution of the substituted 1,2-dihydroquinoline compound is achieved throughout a substantial portion of the thickness of the paper.
After passing the paper web through the sizing press, the paper web incorporated with the substituted 1,2-dihydroquinoline compound, may be passed over a heated drying drum to evaporate the remaining water. The paper product is then ready for production into a variety of products, as described in detail below.
[0013] Alternatively, the substituted 1,2-dihydroquinoline compound may be contacted with the paper product after its manufacture. For example, the paper product may be lightly dampened with a solution comprising the substituted 1,2-dihydroquinoline compound, and then allowed to dry. Typically, this process leaves the substituted 1,2-dihydroquinoline compound disposed on the surface of the paper product.
[0014] Irrespective of when the substituted 1,2-dihydroquinoline compound is added in the paper manufacturing process, it is typically added to the paper product in an anti-microbial effective amount. The amount of substituted 1,2-dihydroquinoline that constitutes an "anti-microbial effective amount" can and will vary depending upon several factors, such as, the type of paper product, the microbial target, and the degree of anti-microbial activity desired. Generally speaking when the substituted 1,2-dihydroquinoline is disposed within or on the surface of the paper product, as illustrated in the examples, an effective amount is a concentration of at least 250 ppm and more typically, at least 300 ppm. In another embodiment, the substituted 1,2-dihydroquinoline compound is added to the paper product at a concentration from about 250 ppm to about 1000 ppm. In another embodiment, the substituted 1,2-dihydroquinoline compound is added to the paper product at a concentration from about 400 ppm to about 600 'ppm. Stated another way, the substituted 1,2-dihydroquinoline compound is typically added to the paper product at a concentration of at least 0.1% by weight. In a further embodiment, the substituted 1,2-dihydroquinoline compound is added at a concentration from about 0.1 % to about 5% by weight. Alternatively, when the substituted 1,2-dihydroquinoline is added to a raw material during the paper manufacturing process, typically it is added at a concentration of about 50 ppm to about 6000 ppm.
[0015] A variety of paper products are encompassed by the present invention, including paper and paperboard. The paper product may be used to store and communicate information. For example, the paper product may be newsprint, magazine paper, book paper, printing paper or writing paper. The paper product may be used to transport and protect food, such as, packaging, sacks, tetra packs, paper towels, and paper plates and cups. Alternatively, the paper product may be used for personal hygiene. For example, the paper product may be tissues, toilet paper, feminine products, and diapers. The paper product may be used for packaging materials and products. In this application, the paper may be paperboard used in the manufacture of corrugated board, folding boxboard, and wrapping.
The paper product may be used to make specialized papers, such as, monetary currency, cigarette papers and filter papers, as well as gypsum liners and special papers for waxing, insulating, roofing, and asphalting.
The paper product may be used to make specialized papers, such as, monetary currency, cigarette papers and filter papers, as well as gypsum liners and special papers for waxing, insulating, roofing, and asphalting.
[0016] The previous discussion has focused on paper products, but the invention can also be used with similar materials having non-wood based fiber construction. For example, the substituted 1,2-dihydroquinoline may be contacted with several types of non-wood fibers to inhibit microbial growth and/or replication.
Non-wood fibers can include fibers woven and nonwoven from wood, plants and/or other textile fibers including but not limited to Aramid (Nomex/Keviar) Conductive Nylon (Polyolefin), Nylon (Bi-component side by side sheath core), Cotton, Rayon, Wool, Local and Modacrylic (Fusible co-Pet fiber) ground to its individual constituents or treated chemically, by digestion with acidic or basic liquors, to form Cellulose, the main fibrous component most suited for making paper goods. It will be apparent to those skilled in the art that impregnating a fibrous material, particularly a fibrous sheet material such as paper, will allow for the antimicrobial properties of the impregnating material to be added to the physical properties of the fibrous material.
ll. Additional Agents [0017] Another aspect of the invention comprises a paper product having a substituted 1,2-dihydroquinoline compound and at least one additional agent. Typically, the agent is selected from the group consisting of a surfactant, an anti-microbial, an antioxidant, a slimicide, and a protected or microencapsulated 2-hydroxy-4-methylthiobutanoic acid, i.e., hydroxy analog of methionine. The agent may be contacted with the paper product contemporaneously with the substituted 1,2-dihydroquinoline compound. Alternatively, the agent may be contacted with the paper product either before or after the substituted 1,2-dihydroquinoline compound is contacted with the paper product. The agent may be contacted with the paper product during its manufacture or after its manufacture according to any method known in the art or as detailed herein.
(a) surfactants [0018] Suitable surfactants for use in combination with the substituted 1,2-dihydroquinoline compound include cationic surfactants, non-ionic surfactants and combinations thereof. For example, the surfactant may be selected from the group consisting of ethoxylated sorbitans, ethoxylated fatty acids, polysorbate-80, glycerol oleate, oleate salts, coconate salts, laurelate salts and combinations thereof.
Suitable combinations of a substituted 1,2-dihydroquinoline compound and a surfactant are illustrated in Table A.
TABLE A
First Compound Second Compound Ethox quin ethoxylated sorbitans Ethoxyguin ethoxylated fatty acids Ethox uin polysorbate-80 Ethoxyguin glycerol oleate Ethox uin oleate salts Ethoxyguin coconate salts Ethoxyguin laurelate salts Ethoxyguin combinations thereof (b) anti-microbial agents [0019] Several anti-microbial agents are suitable for use in combination with the substituted 1,2-dihydroquinoline compound. Typically the anti-microbial agent selected is an agent that acts synergistically with the anti-microbial activity of the substituted 1,2-dihydroquinoline compound. In this context, "synergistically"
includes not only those anti-microbial agents that enhance the anti-microbial activity of the substituted 1,2-dihydroquinoline compound, but also anti-microbial agents that inhibit at least one or more microbes of a different spectrum. In one embodiment, the anti-microbial agent is selected from the group consisting of halogenated salicylanilides, halogenated carbanilides, alkylbenzoylacrylates, thiuram sulfides, quaternary ammonium compounds, halogenated anilides of thiophene carboxylic acids, chlorohexidines, dithiocarbamates, halogenated bisphenols, halogenated diphenyl ethers, and antibiotics. Examples of suitable halogenated salicylanilides include: 5-bromo-salicylanilide; 4',5-dibromo-salicylanilide; 3,4',5-tribromo-salicylanilide; 6-chloro-salicylanilide; 4'5-dichloro-salicylanilide; 3,4'5-trichloro-salicylanilide; 4',5-diiodo-salicylanilide; 3,4',5-triiodo-salicylanilide; 5-chloro-3'-trifluoromethyl-salicylanilide; 5-chloro-2'-trifluoromethyl-salicylanilide;
3,5-dibromo-3'-trifluoromethyl-salicylanilide; 3-chloro-4-bromo-4'-trifluoromethyl-salicylanilide; 2',5-dichloro-3-phenyl-salicylanilide; 3',5-dichloro-4'-methyl-3-phenyl-salicylanilide; 3',5-dichloro-4'phenyl-3-phenyl-salicylanilide; 3,3',5-trichloro-6'-(p-chlorophenoxy)-salicylanilide; 3',5-dichloro-5'-(p-bromophenoxy)-salicylanilide; 3,5-dichloro-6'-phenoxy-salicylanilide; 3,5-dichloro-6'-(o-chlorophenoxy)-salicylanilide; 5-chloro-6'-(o-chlorophenoxy)-salicylanilide; 5-chloro-6'-beta-naphthyloxy-salicylanilide;
5-chloro-6'-alpha-naphthyloxy-salicylanilide; and 3,3',4-trichloro-5,6'-beta-naphthyloxy-salicylanilide. By way of non-limiting example, suitable halogenated carbanilides include: 3,4,4'-trichloro-carvanilide, the 3,3',4-trichloro derivatives, and 3-trifluoromethyl-4,4'-dichlorocarbanilide. Examples of suitable bis-phenols are represented by the following: 2,2'-methylenebis(4-chlorophenol);2,2'-methylenebis(4,5-dichlorophenol); 2,2'-methylenebis(3,4,6-trichlorophenol);
2,2'-thiobis(4,6-dichlorophenol); 2,2'-diketobis(4-bromophenol); 2,2'-methylenebis(4-chloro-6-isopropylphenol); and2,2'-isopropylidenebis(6-sec-butyl-4-chlorophenol).
Examples of suitable quaternary ammonium compounds are:
diisobutylphenoxyethoxyethyidimethylbenzylammonium chloride;
N-methyl-N-(2-hydroxyethyl)-N-(2-hydroxydodecyl)-N-benzyl ammonium chloride;
Cetyl trimethylammonium bromide; Stearyl trimethylammonium bromide; Oleyl dimethylethylammonium bromide; Lauryidimethylchlorethoxyethylammonium chloride; Luryidimethylchlorethoxyethylammonium chloride; Alkyl(C8-C18)dimethyl(3,4-dichlorobenzyl)-ammonium chloride; Lauryl pyridinium bromide;
Lauryl isoquinolinium bromide; and N(lauroyloxyethylaminoformylnethyl)pyridinium chloride. Examples of suitable thiocarbamates and the thiuram sulfides include:
Dsodium ethylene bis-dithiocarbamate (Nabam); Dammonium ethylene bis-dithiocarbamate(amabam); Zn ethylene bis-dithiocarbamate (ziram); Fe ethylene bis-dithiocarbamate (ferbam); Mn ethylene bis-dithiocarbamate (manzate); Tramethyl thiuram disulfide; Ttrabenzyl thiuram disulfide; Ttraethyl thiura, disulfide;
and Ttramethyl thiuram sulfide. In another embodiment, the anti-microbial agent is selected from the group consisting of 2-bromo-2-nitropropane-1,3-diol (sold under the trademark Myacide AS); 1,5-pentanedial (sold under the trademark Protectol GA 50); tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione (sold under the trademark Protectol DZ; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine (sold under the trademark Protectol HT). Suitable combinations of a substituted 1,2-dihydroquinoline compound and an additional anti-microbial agent are illustrated in Table B.
TABLE B
First Compound Second Compound substituted 1,2- halogenated salicylanilides dihydroquinoline compound substituted 1,2- halogenated carbanilides dihydroquinoline compound substituted 1,2- alkylbenzoylacrylates dihydroquinoline compound substituted 1,2- thiuram sulfides dihydroquinoline compound substituted 1,2- quaternary ammonium compounds dihydroquinoline compound substituted 1,2- halogenated anilides of thiophene carboxylic acids dihydroquinoline compound substituted 1,2- chlorohexidines dihydroquinoline compound substituted 1,2- dithiocarbamates dihydroquinoline compound substituted 1,2- halogenated bisphenols dihydroquinoline compound substituted 1,2- halogenated diphenyl ethers dihydroquinoline com ound substituted 1,2- antibiotics dihydroquinoline compound Ethoxyguin 5-bromo-salicylanilide Ethoxyguin 4',5-dibromo-salicylanilide Ethoxyguin 3,4',5-tribromo-salicylanilide Ethoxyguin 6-chloro-salic lanilide Ethoxyquin 4'5-dichloro-salicylanilide Ethoxyquin 3,4'5-trichloro-salicylanilide Ethoxyguin 4',5-diiodo-salic lanilide Ethoxyguin 3,4',5-triiodo-salicylanilide Ethoxyquin 5-chloro-3'-trifluorometh I-salic lanilide Ethoxyguin 5-chloro-2'-trifluorometh I-salic lanilide Ethoxyguin 3,5-dibromo-3'-trifluorometh I-salic lanilide Ethox uin 3-chloro-4-bromo-4'-trifluorometh I-salic lanilide Ethox uin 2',5-dichloro-3- hen I-salic lanilide Ethox uin 3',5-dichloro-4'-meth I-3- hen I-salic lanilide Ethox uin 3',5-dichloro-4' hen I-3- hen I-salic lanilide Ethox uin 3,3',5-trichloro-6'- -chloro henox -salic lanilide Ethox uin 3',5-dichloro-5'- -bromo henox -salic lanilide Ethox uin 3,5-dichloro-6'- henox -salic lanilide Ethox quin 3,5-dichloro-6'- o-chloro henox -salic lanilide Ethox uin 5-chloro-6'- o-chloro henox -salic lanilide Ethox uin 5-chloro-6'-beta-na hth lox -salic lanilide Ethox uin 5-chloro-6'-aI ha-na hth lox -salic lanilide Ethox uin 3,3',4-trichloro-5,6'-beta-na hth lox -salic lanilide Ethox uin 3,4,4'-trichloro-carvanilide Ethoxyquin 3,3',4-trichloro derivatives Ethox uin 3-trifluoromethyl-4,4'-dichlorocarbanilide Ethoxyguin 2,2'-meth lenebis 4-chloro henol Ethox uin 2,2'-meth lenebis 4,5-dichloro henol Ethoxyquin 2,2'-meth lenebis 3,4,6-trichloro henol Ethoxyguin 2,2'-thiobis 4,6-dichloro henol Ethox uin 2,2'-diketobis 4-bromo henol Ethoxyguin 2,2'-meth lenebis 4-chloro-6-iso ro I phenol) Ethox uin 2,2'-iso ro lidenebis 6-sec-but I-4-chloro henol Ethoxyquin diisobutylphenoxyethoxyethyidimethylbenzylammonium chloride Ethoxyq ui n N-methyl-N-(2-hyd roxyethyl )-N-(2-hyd roxydod ecyl )-N-benz I ammonium chloride Ethox uin Cetyl trimethylammonium bromide Ethoxyquin Stearyl trimethylammonium bromide Ethoxyquin Oleyl dimethylethylammonium bromide Ethox uin Laur idimeth Ichlorethox eth lammonium chloride Ethox uin Lur idimeth Ichlorethox eth lammonium chloride Ethoxyquin Alkyl(C8-C18)dimethyl(3,4-dichlorobenzyl)-ammonium chloride Ethox uin Lauryl pyridinium bromide Ethoxyguin Lauryl iso uinolinium bromide Ethoxyquin N lauro loxyeth laminoform Ineth I p ridinium chloride Ethoxyguin Dsodium ethylene bis-dithiocarbamate (Nabam) Ethoxyguin Dammonium ethylene bis-dithiocarbamate amabam Ethoxyguin Zn ethylene bis-dithiocarbamate (ziram) Ethoxyguin Fe ethylene bis-dithiocarbamate (ferbam) Ethoxyguin Mn ethylene bis-dithiocarbamate (manzate) Ethoxyquin Tramethyl thiuram disulfide Ethoxyguin Ttrabenzyl thiuram disulfide Ethoxyquin Ttraethyl thiura, disulfide Ethox uin Ttramethyl thiuram sulfide Ethoxyquin 2-bromo-2-nitropropane-1,3-diol (sold under the trademark M acide AS) Ethoxyquin 1,5-pentanedial (sold under the trademark Protectol GA 50) Ethoxyquin tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione (sold under the trademark Protectol DZ) Ethoxyq uin 1, 3, 5-tris-(2-hyd roxyethyl )-1, 3, 5-hexahyd rotriazi ne (sold under the trademark Protectol HT) (c) antioxidants [0020] Several antioxidant agents are suitable for use in combination with the substituted 1,2-dihydroquinoline compound. Suitable antioxidant agents are typically included to reduce degradation or deterioration of the paper product. For example, the antioxidant may be selected from the group consisting of trialkyl phosphites, mixed alkyl/aryl phosphites, alkylated aryl phosphites, sterically hindered aryl phosphites, aliphatic spirocyclic phosphites, sterically hindered phenyl spirocyclics, sterically hindered bisphosphonites, hydroxyphenyl propionates, hydroxy benzyls, alkylidene bisphenols, alkyl phenols, aromatic amines, thioethers, hindered amines, hydroquinones and mixtures thereof. Alternatively, the antioxidant may be any of the antioxidants delineated in the Examples, such as, alpha-lipoic acid, alpha-tocopherol, alpha-tocopherol acetate, ascorbic acid, ascorbyl palmitate, beta-propiolactone, BHA, BHT, carvone, cinnamaldehyde, citral, decanal, dehydroacetic acid, delta-tocopherol, diacetyl, dilauryl thiodipropionate, dodecyl gallate, eugenol, gallic acid, limonene, octyl gallate, oregano oil, piperonal, propyl gallate, stearyl citrate, TBHQ, and vanillin. Suitable combinations of a substituted 1,2-dihydroquinoline compound and an additional antioxidant are illustrated in Table C.
TABLE C
First Compound Second Compound substituted 1,2-dihydroquinoline trialkyl phosphites compound substituted 1,2-dihydroquinoline mixed alkyl/aryl phosphites com ound substituted 1,2-dihydroquinoline alkylated aryl phosphites compound substituted 1,2-dihydroquinoline sterically hindered aryl com ound substituted 1,2-dihydroquinoline phosphites aliphatic spirocyclic compound phosphites substituted 1,2-dihydroquinoline sterically hindered phenyl spirocyclics compound substituted 1,2-dihydroquinoline sterically hindered bisphosphonites com ound substituted 1,2-dihydroquinoline hydroxyphenyl propionates compound substituted 1,2-dihydroquinoline hydroxy benzyls compound substituted 1,2-dihydroquinoline alkylidene bisphenols compound substituted 1,2-dihydroquinoline alkyl phenols com ound substituted 1,2-dihydroquinoline aromatic amines compound substituted 1,2-dihydroquinoline thioethers compound substituted 1,2-dihydroquinoline hindered amines compound substituted 1,2-dihydroquinoline Hydroquinones compound Ethox uin al ha-li oic acid Ethoxyguin al ha-toco herol Ethoxyguin al ha-toco herol acetate Ethoxyguin ascorbic acid Ethoxyguin ascorbyl palmitate Ethox uin beta- ro iolactone Ethoxyguin BHA
Ethoxyguin BHT
Ethoxyguin carvone Ethox quin Cinnamaldehyde Ethox uin citral Ethox uin decanal Ethox uin dehydroacetic acid Ethox uin delta-tocopherol Ethoxyquin diacetyl Ethoxyguin dilauryl thiodi ro ionate Ethoxyguin dodecyl gailate Ethoxyguin eugenol Ethoxyguin gallic acid Ethoxyguin limonene Ethoxyquin octyl gallate Ethox uin oregano oil Ethoxyguin piperonal Ethoxyguin propyl gallate Ethoxyquin stearyl citrate Ethoxyguin TBHQ
Ethoxyquin vanillin [0021] As will be appreciated by the skilled artisan, any of the surfactants, anti-microbials, or antioxidants may be combined, either alone or in combination with one another, with the substituted 1,2-dihydroquinoline to form a composition of the invention. The concentration of these agents will depend upon the application but, in general, will be between about 0.0001 % and about 10% by weight of the paper product, more preferably between about 0.001 % and about 7.5%, most preferably between about 0.01 lo and about 5%.
(d) slimicides [0022] A variety of slimicides are suitable for use in combination with the substituted 1,2-dihydroquinoline compound. Suitable examples of slimicides include Acticide DW, HF, SPX (from Thor, Inc. known under the isothiazolin family of products such as DCOIT, BIT, CIT etc.); Dantochlor and Dantobrom PG
granular of briquette from Lonza, Inc. (known as halogenated hydantoin, e.g., bromo-3-chloro-5,5-dimethylhydantoin and/or 1,3-dichloro 5,5 dimethyl hydantoin and/or 1,3-dichloro-5-ethyl-5methyl hydantoin); Paxgard BD20, BD88, BKC, EM, MBT from Pax Chem, Inc. (known as 2-bromo-2-nitropropane-1,3 diol, alkyl dimethyl benzyl ammonium chloride, hexahydro-1,3,5-tris (2-hydroxyethyl)-s-triazine, methylenebisisothiocyanate etc); Paxgard BSL, BU 30L, BU 30, BU 60, MB 10, TC
;
Busan 1223 from Buckmann Lab.; Metasol CB-220, CB-225AD, CB-225 L.C, CMI-150 from Ondeo-Nalco, Inc. (known as tripropyleneglycol monomethyl ether (80%) and 1,2 dibromo 2,4-dicyanobutane (20%), (25%), CMIT and MIT at 1.15% and 0.35% respectively). Generally, the ratio of substituted 1,2-dihydroquinoline to any of the slimicides referenced herein can and will vary. By way of non-limiting example, the ratio 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline to slimicide may vary from 0.05 to 99% by weight. Suitable combinations of a substituted 1,2-dihydroquinoline compound and a slimicide are illustrated in Table D.
TABLE D
First Compound Second Compound Ethoxyguin Acticide Ethox uin DantochlorR
Ethox uin Dantobrom Ethoxyquin 1 -brom o-3-chl oro-5,5-d i m ethyl hyd antoi n Ethoxyguin 1,3-dichloro 5,5 dimethyl hydantoin Ethoxyguin 1,3-dichloro-5-eth I-5meth I h dantoin Ethoxyquin 2-bromo-2-nitropropane-1,3 diol, alkyl dimethyl benzyl ammonium chloride Ethoxyquin hexahydro-1,3,5-tris (2-hydroxyethyl)-s-triazine Ethox uin meth lenebisisothioc anate Ethox uin tri rop lene I col monomethyl ether (e) hydroxyl analog of inethionine [0023] The substituted 1,2-dihydroquinoline compound may be combined with a protected or microencapsulated 2-hydroxy 4-methylthio butanoic acid (HMTBA), i.e., hydroxyl analog of methionine. Suitable hydroxyl analogs of methionine include 2-hydroxy-4(methylthio)butanoic acid (sold by Novus International, St. Louis, Mo under the trade name Alimet ), its salts, esters, amides, and oligomers. Representative salts of HMTBA include the ammonium salt, the stoichiometric and hyperstoichiometric alkaline earth metal salts (e.g., magnesium and calcium), the stoichiometric and hyperstoichiometric alkali metal salts (e.g., lithium, sodium, and potassium), and the stoichiometric and hyperstoichiometric zinc salt. Representative esters of HMTBA include the methyl, ethyl, 2-propyl, butyl, and 3-methylbutyl esters of HMTBA. Representative amides of HMTBA include methylamide, dimethylamide, ethylmethylamide, butylamide, dibutylamide, and butylmethylamide. Representative oligomers of HMTBA include its dimers, trimers, tetramers and oligomers that include a greater number of repeating units.
Non-wood fibers can include fibers woven and nonwoven from wood, plants and/or other textile fibers including but not limited to Aramid (Nomex/Keviar) Conductive Nylon (Polyolefin), Nylon (Bi-component side by side sheath core), Cotton, Rayon, Wool, Local and Modacrylic (Fusible co-Pet fiber) ground to its individual constituents or treated chemically, by digestion with acidic or basic liquors, to form Cellulose, the main fibrous component most suited for making paper goods. It will be apparent to those skilled in the art that impregnating a fibrous material, particularly a fibrous sheet material such as paper, will allow for the antimicrobial properties of the impregnating material to be added to the physical properties of the fibrous material.
ll. Additional Agents [0017] Another aspect of the invention comprises a paper product having a substituted 1,2-dihydroquinoline compound and at least one additional agent. Typically, the agent is selected from the group consisting of a surfactant, an anti-microbial, an antioxidant, a slimicide, and a protected or microencapsulated 2-hydroxy-4-methylthiobutanoic acid, i.e., hydroxy analog of methionine. The agent may be contacted with the paper product contemporaneously with the substituted 1,2-dihydroquinoline compound. Alternatively, the agent may be contacted with the paper product either before or after the substituted 1,2-dihydroquinoline compound is contacted with the paper product. The agent may be contacted with the paper product during its manufacture or after its manufacture according to any method known in the art or as detailed herein.
(a) surfactants [0018] Suitable surfactants for use in combination with the substituted 1,2-dihydroquinoline compound include cationic surfactants, non-ionic surfactants and combinations thereof. For example, the surfactant may be selected from the group consisting of ethoxylated sorbitans, ethoxylated fatty acids, polysorbate-80, glycerol oleate, oleate salts, coconate salts, laurelate salts and combinations thereof.
Suitable combinations of a substituted 1,2-dihydroquinoline compound and a surfactant are illustrated in Table A.
TABLE A
First Compound Second Compound Ethox quin ethoxylated sorbitans Ethoxyguin ethoxylated fatty acids Ethox uin polysorbate-80 Ethoxyguin glycerol oleate Ethox uin oleate salts Ethoxyguin coconate salts Ethoxyguin laurelate salts Ethoxyguin combinations thereof (b) anti-microbial agents [0019] Several anti-microbial agents are suitable for use in combination with the substituted 1,2-dihydroquinoline compound. Typically the anti-microbial agent selected is an agent that acts synergistically with the anti-microbial activity of the substituted 1,2-dihydroquinoline compound. In this context, "synergistically"
includes not only those anti-microbial agents that enhance the anti-microbial activity of the substituted 1,2-dihydroquinoline compound, but also anti-microbial agents that inhibit at least one or more microbes of a different spectrum. In one embodiment, the anti-microbial agent is selected from the group consisting of halogenated salicylanilides, halogenated carbanilides, alkylbenzoylacrylates, thiuram sulfides, quaternary ammonium compounds, halogenated anilides of thiophene carboxylic acids, chlorohexidines, dithiocarbamates, halogenated bisphenols, halogenated diphenyl ethers, and antibiotics. Examples of suitable halogenated salicylanilides include: 5-bromo-salicylanilide; 4',5-dibromo-salicylanilide; 3,4',5-tribromo-salicylanilide; 6-chloro-salicylanilide; 4'5-dichloro-salicylanilide; 3,4'5-trichloro-salicylanilide; 4',5-diiodo-salicylanilide; 3,4',5-triiodo-salicylanilide; 5-chloro-3'-trifluoromethyl-salicylanilide; 5-chloro-2'-trifluoromethyl-salicylanilide;
3,5-dibromo-3'-trifluoromethyl-salicylanilide; 3-chloro-4-bromo-4'-trifluoromethyl-salicylanilide; 2',5-dichloro-3-phenyl-salicylanilide; 3',5-dichloro-4'-methyl-3-phenyl-salicylanilide; 3',5-dichloro-4'phenyl-3-phenyl-salicylanilide; 3,3',5-trichloro-6'-(p-chlorophenoxy)-salicylanilide; 3',5-dichloro-5'-(p-bromophenoxy)-salicylanilide; 3,5-dichloro-6'-phenoxy-salicylanilide; 3,5-dichloro-6'-(o-chlorophenoxy)-salicylanilide; 5-chloro-6'-(o-chlorophenoxy)-salicylanilide; 5-chloro-6'-beta-naphthyloxy-salicylanilide;
5-chloro-6'-alpha-naphthyloxy-salicylanilide; and 3,3',4-trichloro-5,6'-beta-naphthyloxy-salicylanilide. By way of non-limiting example, suitable halogenated carbanilides include: 3,4,4'-trichloro-carvanilide, the 3,3',4-trichloro derivatives, and 3-trifluoromethyl-4,4'-dichlorocarbanilide. Examples of suitable bis-phenols are represented by the following: 2,2'-methylenebis(4-chlorophenol);2,2'-methylenebis(4,5-dichlorophenol); 2,2'-methylenebis(3,4,6-trichlorophenol);
2,2'-thiobis(4,6-dichlorophenol); 2,2'-diketobis(4-bromophenol); 2,2'-methylenebis(4-chloro-6-isopropylphenol); and2,2'-isopropylidenebis(6-sec-butyl-4-chlorophenol).
Examples of suitable quaternary ammonium compounds are:
diisobutylphenoxyethoxyethyidimethylbenzylammonium chloride;
N-methyl-N-(2-hydroxyethyl)-N-(2-hydroxydodecyl)-N-benzyl ammonium chloride;
Cetyl trimethylammonium bromide; Stearyl trimethylammonium bromide; Oleyl dimethylethylammonium bromide; Lauryidimethylchlorethoxyethylammonium chloride; Luryidimethylchlorethoxyethylammonium chloride; Alkyl(C8-C18)dimethyl(3,4-dichlorobenzyl)-ammonium chloride; Lauryl pyridinium bromide;
Lauryl isoquinolinium bromide; and N(lauroyloxyethylaminoformylnethyl)pyridinium chloride. Examples of suitable thiocarbamates and the thiuram sulfides include:
Dsodium ethylene bis-dithiocarbamate (Nabam); Dammonium ethylene bis-dithiocarbamate(amabam); Zn ethylene bis-dithiocarbamate (ziram); Fe ethylene bis-dithiocarbamate (ferbam); Mn ethylene bis-dithiocarbamate (manzate); Tramethyl thiuram disulfide; Ttrabenzyl thiuram disulfide; Ttraethyl thiura, disulfide;
and Ttramethyl thiuram sulfide. In another embodiment, the anti-microbial agent is selected from the group consisting of 2-bromo-2-nitropropane-1,3-diol (sold under the trademark Myacide AS); 1,5-pentanedial (sold under the trademark Protectol GA 50); tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione (sold under the trademark Protectol DZ; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine (sold under the trademark Protectol HT). Suitable combinations of a substituted 1,2-dihydroquinoline compound and an additional anti-microbial agent are illustrated in Table B.
TABLE B
First Compound Second Compound substituted 1,2- halogenated salicylanilides dihydroquinoline compound substituted 1,2- halogenated carbanilides dihydroquinoline compound substituted 1,2- alkylbenzoylacrylates dihydroquinoline compound substituted 1,2- thiuram sulfides dihydroquinoline compound substituted 1,2- quaternary ammonium compounds dihydroquinoline compound substituted 1,2- halogenated anilides of thiophene carboxylic acids dihydroquinoline compound substituted 1,2- chlorohexidines dihydroquinoline compound substituted 1,2- dithiocarbamates dihydroquinoline compound substituted 1,2- halogenated bisphenols dihydroquinoline compound substituted 1,2- halogenated diphenyl ethers dihydroquinoline com ound substituted 1,2- antibiotics dihydroquinoline compound Ethoxyguin 5-bromo-salicylanilide Ethoxyguin 4',5-dibromo-salicylanilide Ethoxyguin 3,4',5-tribromo-salicylanilide Ethoxyguin 6-chloro-salic lanilide Ethoxyquin 4'5-dichloro-salicylanilide Ethoxyquin 3,4'5-trichloro-salicylanilide Ethoxyguin 4',5-diiodo-salic lanilide Ethoxyguin 3,4',5-triiodo-salicylanilide Ethoxyquin 5-chloro-3'-trifluorometh I-salic lanilide Ethoxyguin 5-chloro-2'-trifluorometh I-salic lanilide Ethoxyguin 3,5-dibromo-3'-trifluorometh I-salic lanilide Ethox uin 3-chloro-4-bromo-4'-trifluorometh I-salic lanilide Ethox uin 2',5-dichloro-3- hen I-salic lanilide Ethox uin 3',5-dichloro-4'-meth I-3- hen I-salic lanilide Ethox uin 3',5-dichloro-4' hen I-3- hen I-salic lanilide Ethox uin 3,3',5-trichloro-6'- -chloro henox -salic lanilide Ethox uin 3',5-dichloro-5'- -bromo henox -salic lanilide Ethox uin 3,5-dichloro-6'- henox -salic lanilide Ethox quin 3,5-dichloro-6'- o-chloro henox -salic lanilide Ethox uin 5-chloro-6'- o-chloro henox -salic lanilide Ethox uin 5-chloro-6'-beta-na hth lox -salic lanilide Ethox uin 5-chloro-6'-aI ha-na hth lox -salic lanilide Ethox uin 3,3',4-trichloro-5,6'-beta-na hth lox -salic lanilide Ethox uin 3,4,4'-trichloro-carvanilide Ethoxyquin 3,3',4-trichloro derivatives Ethox uin 3-trifluoromethyl-4,4'-dichlorocarbanilide Ethoxyguin 2,2'-meth lenebis 4-chloro henol Ethox uin 2,2'-meth lenebis 4,5-dichloro henol Ethoxyquin 2,2'-meth lenebis 3,4,6-trichloro henol Ethoxyguin 2,2'-thiobis 4,6-dichloro henol Ethox uin 2,2'-diketobis 4-bromo henol Ethoxyguin 2,2'-meth lenebis 4-chloro-6-iso ro I phenol) Ethox uin 2,2'-iso ro lidenebis 6-sec-but I-4-chloro henol Ethoxyquin diisobutylphenoxyethoxyethyidimethylbenzylammonium chloride Ethoxyq ui n N-methyl-N-(2-hyd roxyethyl )-N-(2-hyd roxydod ecyl )-N-benz I ammonium chloride Ethox uin Cetyl trimethylammonium bromide Ethoxyquin Stearyl trimethylammonium bromide Ethoxyquin Oleyl dimethylethylammonium bromide Ethox uin Laur idimeth Ichlorethox eth lammonium chloride Ethox uin Lur idimeth Ichlorethox eth lammonium chloride Ethoxyquin Alkyl(C8-C18)dimethyl(3,4-dichlorobenzyl)-ammonium chloride Ethox uin Lauryl pyridinium bromide Ethoxyguin Lauryl iso uinolinium bromide Ethoxyquin N lauro loxyeth laminoform Ineth I p ridinium chloride Ethoxyguin Dsodium ethylene bis-dithiocarbamate (Nabam) Ethoxyguin Dammonium ethylene bis-dithiocarbamate amabam Ethoxyguin Zn ethylene bis-dithiocarbamate (ziram) Ethoxyguin Fe ethylene bis-dithiocarbamate (ferbam) Ethoxyguin Mn ethylene bis-dithiocarbamate (manzate) Ethoxyquin Tramethyl thiuram disulfide Ethoxyguin Ttrabenzyl thiuram disulfide Ethoxyquin Ttraethyl thiura, disulfide Ethox uin Ttramethyl thiuram sulfide Ethoxyquin 2-bromo-2-nitropropane-1,3-diol (sold under the trademark M acide AS) Ethoxyquin 1,5-pentanedial (sold under the trademark Protectol GA 50) Ethoxyquin tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione (sold under the trademark Protectol DZ) Ethoxyq uin 1, 3, 5-tris-(2-hyd roxyethyl )-1, 3, 5-hexahyd rotriazi ne (sold under the trademark Protectol HT) (c) antioxidants [0020] Several antioxidant agents are suitable for use in combination with the substituted 1,2-dihydroquinoline compound. Suitable antioxidant agents are typically included to reduce degradation or deterioration of the paper product. For example, the antioxidant may be selected from the group consisting of trialkyl phosphites, mixed alkyl/aryl phosphites, alkylated aryl phosphites, sterically hindered aryl phosphites, aliphatic spirocyclic phosphites, sterically hindered phenyl spirocyclics, sterically hindered bisphosphonites, hydroxyphenyl propionates, hydroxy benzyls, alkylidene bisphenols, alkyl phenols, aromatic amines, thioethers, hindered amines, hydroquinones and mixtures thereof. Alternatively, the antioxidant may be any of the antioxidants delineated in the Examples, such as, alpha-lipoic acid, alpha-tocopherol, alpha-tocopherol acetate, ascorbic acid, ascorbyl palmitate, beta-propiolactone, BHA, BHT, carvone, cinnamaldehyde, citral, decanal, dehydroacetic acid, delta-tocopherol, diacetyl, dilauryl thiodipropionate, dodecyl gallate, eugenol, gallic acid, limonene, octyl gallate, oregano oil, piperonal, propyl gallate, stearyl citrate, TBHQ, and vanillin. Suitable combinations of a substituted 1,2-dihydroquinoline compound and an additional antioxidant are illustrated in Table C.
TABLE C
First Compound Second Compound substituted 1,2-dihydroquinoline trialkyl phosphites compound substituted 1,2-dihydroquinoline mixed alkyl/aryl phosphites com ound substituted 1,2-dihydroquinoline alkylated aryl phosphites compound substituted 1,2-dihydroquinoline sterically hindered aryl com ound substituted 1,2-dihydroquinoline phosphites aliphatic spirocyclic compound phosphites substituted 1,2-dihydroquinoline sterically hindered phenyl spirocyclics compound substituted 1,2-dihydroquinoline sterically hindered bisphosphonites com ound substituted 1,2-dihydroquinoline hydroxyphenyl propionates compound substituted 1,2-dihydroquinoline hydroxy benzyls compound substituted 1,2-dihydroquinoline alkylidene bisphenols compound substituted 1,2-dihydroquinoline alkyl phenols com ound substituted 1,2-dihydroquinoline aromatic amines compound substituted 1,2-dihydroquinoline thioethers compound substituted 1,2-dihydroquinoline hindered amines compound substituted 1,2-dihydroquinoline Hydroquinones compound Ethox uin al ha-li oic acid Ethoxyguin al ha-toco herol Ethoxyguin al ha-toco herol acetate Ethoxyguin ascorbic acid Ethoxyguin ascorbyl palmitate Ethox uin beta- ro iolactone Ethoxyguin BHA
Ethoxyguin BHT
Ethoxyguin carvone Ethox quin Cinnamaldehyde Ethox uin citral Ethox uin decanal Ethox uin dehydroacetic acid Ethox uin delta-tocopherol Ethoxyquin diacetyl Ethoxyguin dilauryl thiodi ro ionate Ethoxyguin dodecyl gailate Ethoxyguin eugenol Ethoxyguin gallic acid Ethoxyguin limonene Ethoxyquin octyl gallate Ethox uin oregano oil Ethoxyguin piperonal Ethoxyguin propyl gallate Ethoxyquin stearyl citrate Ethoxyguin TBHQ
Ethoxyquin vanillin [0021] As will be appreciated by the skilled artisan, any of the surfactants, anti-microbials, or antioxidants may be combined, either alone or in combination with one another, with the substituted 1,2-dihydroquinoline to form a composition of the invention. The concentration of these agents will depend upon the application but, in general, will be between about 0.0001 % and about 10% by weight of the paper product, more preferably between about 0.001 % and about 7.5%, most preferably between about 0.01 lo and about 5%.
(d) slimicides [0022] A variety of slimicides are suitable for use in combination with the substituted 1,2-dihydroquinoline compound. Suitable examples of slimicides include Acticide DW, HF, SPX (from Thor, Inc. known under the isothiazolin family of products such as DCOIT, BIT, CIT etc.); Dantochlor and Dantobrom PG
granular of briquette from Lonza, Inc. (known as halogenated hydantoin, e.g., bromo-3-chloro-5,5-dimethylhydantoin and/or 1,3-dichloro 5,5 dimethyl hydantoin and/or 1,3-dichloro-5-ethyl-5methyl hydantoin); Paxgard BD20, BD88, BKC, EM, MBT from Pax Chem, Inc. (known as 2-bromo-2-nitropropane-1,3 diol, alkyl dimethyl benzyl ammonium chloride, hexahydro-1,3,5-tris (2-hydroxyethyl)-s-triazine, methylenebisisothiocyanate etc); Paxgard BSL, BU 30L, BU 30, BU 60, MB 10, TC
;
Busan 1223 from Buckmann Lab.; Metasol CB-220, CB-225AD, CB-225 L.C, CMI-150 from Ondeo-Nalco, Inc. (known as tripropyleneglycol monomethyl ether (80%) and 1,2 dibromo 2,4-dicyanobutane (20%), (25%), CMIT and MIT at 1.15% and 0.35% respectively). Generally, the ratio of substituted 1,2-dihydroquinoline to any of the slimicides referenced herein can and will vary. By way of non-limiting example, the ratio 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline to slimicide may vary from 0.05 to 99% by weight. Suitable combinations of a substituted 1,2-dihydroquinoline compound and a slimicide are illustrated in Table D.
TABLE D
First Compound Second Compound Ethoxyguin Acticide Ethox uin DantochlorR
Ethox uin Dantobrom Ethoxyquin 1 -brom o-3-chl oro-5,5-d i m ethyl hyd antoi n Ethoxyguin 1,3-dichloro 5,5 dimethyl hydantoin Ethoxyguin 1,3-dichloro-5-eth I-5meth I h dantoin Ethoxyquin 2-bromo-2-nitropropane-1,3 diol, alkyl dimethyl benzyl ammonium chloride Ethoxyquin hexahydro-1,3,5-tris (2-hydroxyethyl)-s-triazine Ethox uin meth lenebisisothioc anate Ethox uin tri rop lene I col monomethyl ether (e) hydroxyl analog of inethionine [0023] The substituted 1,2-dihydroquinoline compound may be combined with a protected or microencapsulated 2-hydroxy 4-methylthio butanoic acid (HMTBA), i.e., hydroxyl analog of methionine. Suitable hydroxyl analogs of methionine include 2-hydroxy-4(methylthio)butanoic acid (sold by Novus International, St. Louis, Mo under the trade name Alimet ), its salts, esters, amides, and oligomers. Representative salts of HMTBA include the ammonium salt, the stoichiometric and hyperstoichiometric alkaline earth metal salts (e.g., magnesium and calcium), the stoichiometric and hyperstoichiometric alkali metal salts (e.g., lithium, sodium, and potassium), and the stoichiometric and hyperstoichiometric zinc salt. Representative esters of HMTBA include the methyl, ethyl, 2-propyl, butyl, and 3-methylbutyl esters of HMTBA. Representative amides of HMTBA include methylamide, dimethylamide, ethylmethylamide, butylamide, dibutylamide, and butylmethylamide. Representative oligomers of HMTBA include its dimers, trimers, tetramers and oligomers that include a greater number of repeating units.
[0024] Alternatively, the hydroxy analog of methionine may be a metal chelate comprising one or more ligand compounds comprising HMTBA together with one or more metal ions. Irrespective of the embodiment, suitable non-limiting examples of metal ions include zinc ions, copper ions, manganese ions, iron ions, chromium ions, cobalt ions, and calcium ions. In one embodiment, the metal ion is divalent. Examples of divalent metal ions (i.e., ions having a net charge of +2) include copper ions, manganese ions, chromium ions, calcium ions, cobalt ions and iron ions. In another embodiment, the metal ion is zinc. In yet another embodiment, the metal ion is copper. In still another embodiment, the metal ion is manganese. In one exemplary embodiment, the metal chelate is HMTBA-Mn. In a further exemplary embodiment, the metal chelate is HMTBA-Cu. In an alternative exemplary embodiment, the metal chelate is HMTBA-Zn.
[0025] As will be appreciated by a skilled artisan, the ratio of ligands to metal ions forming a metal chelate compound can and will vary. Generally speaking, a suitable ratio of ligand to metal ion is from about 1:1 to about 3:1 or higher. In another embodiment, the ratio of ligand to metal ion is from about 1.5:1 to about 2.5:1. Of course within a given mixture of metal chelate compounds, the mixture will include compounds having different ratios of ligand to metal ion. For example, a composition of metal chelate compounds may have species with ratios of ligand to metal ion that include 1:1, 1.5:1, 2:1, 2.5:1, and 3:1. Metal chelate compounds of the invention may be made in accordance with methods generally known in the art, such as described in U.S. Patent Nos. 4,335,257 and 4,579,962, which are both hereby incorporated by reference in their entirety.
[0026] Suitable combinations of a substituted 1,2-dihydroquinoline compound and HMTBA are illustrated in Table E.
TABLE E
First Compound Second Compound substituted 1,2-dihydroquinoline HMTBA
compound substituted 1,2-dihydroquinoline HMTBA-Cu compound substituted 1,2-dihydroquinoline HMTBA-Zn compound substituted 1,2-dihydroquinoline HMTBA-Mn compound Ethoxyguin HMTBA
Ethoxyguin HMTBA-Cu Ethoxyguin HMTBA-Zn Ethoxyquin HMTBA-Mn [0027] In one preferred embodiment, as detailed above, the HMTBA is HMTBA-Cu. A preferred composition comprises from about 30% to about 40% by weight 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, from about 1% to about 5% by weight HMTBA-Cu, and from about 55% to about 65% propylene glycol. In a more preferred embodiment, the composition comprises about 37% by weight 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, about 2% by weight HMTBA-Cu, and about 60% by weight propylene glycol.
DEFINITIONS
TABLE E
First Compound Second Compound substituted 1,2-dihydroquinoline HMTBA
compound substituted 1,2-dihydroquinoline HMTBA-Cu compound substituted 1,2-dihydroquinoline HMTBA-Zn compound substituted 1,2-dihydroquinoline HMTBA-Mn compound Ethoxyguin HMTBA
Ethoxyguin HMTBA-Cu Ethoxyguin HMTBA-Zn Ethoxyquin HMTBA-Mn [0027] In one preferred embodiment, as detailed above, the HMTBA is HMTBA-Cu. A preferred composition comprises from about 30% to about 40% by weight 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, from about 1% to about 5% by weight HMTBA-Cu, and from about 55% to about 65% propylene glycol. In a more preferred embodiment, the composition comprises about 37% by weight 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, about 2% by weight HMTBA-Cu, and about 60% by weight propylene glycol.
DEFINITIONS
[0028] "Anti-microbial" is an agent that prevents or inhibits the growth, replication or growth and replication of a microorganism.
[0029] "Microbial" or "microbe" is used in its broadest sense to encompass several diverse types of microorganisms, such as, fungi, yeast, bacteria, virus, and mildew, that grow and/or replicate during paper manufacturing or on the finished paper product. Generally, aerobic slime-forming bacteria, such as, Pseudomonas, Klebsiella, Enterobacter and Bacillus, are problematic during the paper manufacturing process. Problematic anerobic microorganisms include Desulphovibrio. In addition, problematic yeast and fungi include Candida, Saccharomyces, and Aspergillus.
[0030] "Paper" is used in its broadest sense to encompass a substance composed of fibers interlaced into a compact web, which can be macerated into pulp, dried and pressed.
[0031] PPM stands for parts per million.
EXAMPLES
EXAMPLES
[0032] Examples 1 and 2 demonstrate the ability of a composition comprising ethoxyquin to inhibit microbial growth on paper products. Example 3 demonstrates the antimicrobial properties of antioxidants and other agents.
[0033] Several of the compounds detailed in Table 1, 2, and 3 presented below are commercially available from Novus International, Saint Louis, Missouri (i.e., the composition abbreviated Santoquin is ethoxyquin, Biox AUSD
is a blend of organic acid, inorganic acid and HMTBA and is sold under the trade name ACTIVATE US WD; the compound abbreviated is HMBTA-Cu and is sold under the trade name MINTREX Cu; and the compound abbreviated Tox-Guard dry is an antioxidant blend sold under the trade name TOXGUARD).
Example 1. Fungal Resistance Testing of Several Biocides [0034] Five different biocides at varying concentrations were tested for fungal resistance using the ASTM D 2020 Standard Test Method for Mildew (Fungus) Resistance of Paper and Paperboard protocol. This test method was designed for the qualitative determination of mildew (fungus) resistance of paper and paperboard, particularly those types that have been given a fungus resistant treatment. Specific test conditions applied to this project are described below, but at all times the ASTM D 2020 test protocol was strictly followed.
is a blend of organic acid, inorganic acid and HMTBA and is sold under the trade name ACTIVATE US WD; the compound abbreviated is HMBTA-Cu and is sold under the trade name MINTREX Cu; and the compound abbreviated Tox-Guard dry is an antioxidant blend sold under the trade name TOXGUARD).
Example 1. Fungal Resistance Testing of Several Biocides [0034] Five different biocides at varying concentrations were tested for fungal resistance using the ASTM D 2020 Standard Test Method for Mildew (Fungus) Resistance of Paper and Paperboard protocol. This test method was designed for the qualitative determination of mildew (fungus) resistance of paper and paperboard, particularly those types that have been given a fungus resistant treatment. Specific test conditions applied to this project are described below, but at all times the ASTM D 2020 test protocol was strictly followed.
[0035] All five biocides (Santoquin , HMTBA-Cu, BIOX-AUSD, Tox-Guard*Dry, and Metasol-TK 100) were tested at three different concentrations (200, 400, and 600 ppm). Santoquin , HMTBA-Cu, and BIOX-AUSD were diluted in dimethyl sulfoxide (DMSO), while Tox-Guard*Dry and Metasol-TK100 were diluted in water. DMSO was used a control diluent. The fungal inoculum was comprised of three different species: Aspergillus niger ATCC 9642, Aspergillus flavus ATCC
9643, and Chaetomium globosum ATCC 6205.
9643, and Chaetomium globosum ATCC 6205.
[0036] Glass fiber filter paper was treated with the individual test biocides at the respective concentrations listed in Table 1 and allowed to dry overnight. The filter paper carriers, tested in triplicate, were placed in Petri dishes on mineral salts agar and inoculated with the fungal inoculum. The samples were incubated at 28 C for 2 weeks and examined daily during the first week of incubation for the growth of the test organisms.
[0037] If a sample showed growth of test organisms after seven days of incubation, the test was discontinued and the sample was reported as fungus non-resistant. If no growth was observed on a sample after the first week of incubation, the sample was incubated for an additional seven days. If, after two weeks, the sample showed growth of the test fungi, the sample was considered fungus non-resistant. If, after two weeks, there was no detectable growth of test organisms, the sample was considered fungus resistant.
[0038] As delineated in Table 1, the samples treated with Metasol-TK
100 showed no growth at the end of the two weeks. Therefore, the Metasol -TK
treated samples were found to be fungal resistant in the ASTM D 2020 test at all three concentrations (200, 400, and 600 ppm). Similarly, the samples treated with 400 and 600 ppm Santoquin showed no fungal growth at the end of two weeks.
Therefore, the Santoquin treated samples were found to be fungal resistant at and 600 ppm. Comparatively, all concentrations of Tox-Guard*Dry, all concentrations of BIOX-AUSD, all concentrations of HMTBA-Cu, and Santoquin at 200 ppm showed fungal growth, and therefore these samples were labeled fungus non-resistant.
Example 2. Fungal Resistance Testing of Santoguin [0039] One biocide sample, labeled Santoquin was tested for fungal resistance using the ASTM D 2020 Standard Test Method for Mildew (Fungus) Resistance of Paper and Paperboard protocol. This test method was designed for the qualitative determination of mildew (fungus) resistance of paper and paperboard, particularly those types that have been given a fungus resistant treatment.
Specific test conditions applied to this project are described below, but at all times the ASTM
D 2020 test protocol was strictly followed.
100 showed no growth at the end of the two weeks. Therefore, the Metasol -TK
treated samples were found to be fungal resistant in the ASTM D 2020 test at all three concentrations (200, 400, and 600 ppm). Similarly, the samples treated with 400 and 600 ppm Santoquin showed no fungal growth at the end of two weeks.
Therefore, the Santoquin treated samples were found to be fungal resistant at and 600 ppm. Comparatively, all concentrations of Tox-Guard*Dry, all concentrations of BIOX-AUSD, all concentrations of HMTBA-Cu, and Santoquin at 200 ppm showed fungal growth, and therefore these samples were labeled fungus non-resistant.
Example 2. Fungal Resistance Testing of Santoguin [0039] One biocide sample, labeled Santoquin was tested for fungal resistance using the ASTM D 2020 Standard Test Method for Mildew (Fungus) Resistance of Paper and Paperboard protocol. This test method was designed for the qualitative determination of mildew (fungus) resistance of paper and paperboard, particularly those types that have been given a fungus resistant treatment.
Specific test conditions applied to this project are described below, but at all times the ASTM
D 2020 test protocol was strictly followed.
[0040] The Santoquin biocide was diluted with DMSO and tested at two different concentrations: 0.1 % and 1.0%. The biocide Kathon 893 was diluted to 0.1 % and 1.0% in water and used as a control biocide. DMSO was used as a control diluent. The fungal inoculum was comprised of three different species:
Aspergillus niger ATCC 9642, Aspergillus flavus ATCC 9643, and Chaetomium globosum ATCC
6205.
Aspergillus niger ATCC 9642, Aspergillus flavus ATCC 9643, and Chaetomium globosum ATCC
6205.
[0041] Glass fiber filter paper was treated with two different concentrations (0.1 % and 1.0%) of Santoquin and allowed to dry overnight.
The filter paper carriers, tested in triplicate, were placed in Petri dishes on mineral salts agar and inoculated with the fungal inoculum. The samples were incubated at 28 C
for 2 weeks and examined daily during the first week of incubation for the growth of the test organisms.
The filter paper carriers, tested in triplicate, were placed in Petri dishes on mineral salts agar and inoculated with the fungal inoculum. The samples were incubated at 28 C
for 2 weeks and examined daily during the first week of incubation for the growth of the test organisms.
[0042] If a sample showed growth of test organisms after seven days of incubation, the test was discontinued and the sample was reported as fungus non-resistant. If no growth was observed on a sample after the first week of incubation, the sample was incubated for an additional seven days. If, after two weeks, the sample showed growth of the test fungi, the sample was considered fungus non-resistant. If, after two weeks, there was no detectable growth of test organisms, the sample was considered fungus resistant.
[0043] As delineated in Table 2, the samples treated with Santoquin showed no fungal growth at the end of the two weeks. Therefore, the Santoquin treated samples were found to be fungal resistant in the ASTM D 2020 test at both concentrations (0.1 % and 1.0%) tested. Comparatively, both concentrations of Kathon 893 and the control diluent showed fungal growth and therefore these samples were labeled non-fungus resistant.
Example 3. Fungal Resistance Testing of Other Agents [0044] The antifungal properties of other agents were tested using an in vitro disk assay (Higgins and Brinkhaus, 1999, J. Appl. Poultry Res. 8:480-487). In this assay, paper disks were soaked in a fungal solution and placed on the surface of agar plates containing different concentration of the test agent. The radius of fungal growth radiating from each disk was considered indicative of the degree of inhibition by the agent relative to a control.
Example 3. Fungal Resistance Testing of Other Agents [0044] The antifungal properties of other agents were tested using an in vitro disk assay (Higgins and Brinkhaus, 1999, J. Appl. Poultry Res. 8:480-487). In this assay, paper disks were soaked in a fungal solution and placed on the surface of agar plates containing different concentration of the test agent. The radius of fungal growth radiating from each disk was considered indicative of the degree of inhibition by the agent relative to a control.
[0045] The test agents were diluted in DMSO or water and tested at several different concentrations. The test agents were added to the agar solution after sterilization, but prior to solidification. Sterile paper disks were soaked in a suspension of Aspergillus niger ATCC 9642 and Aspergillus flavus ATCC 9643 and placed on the agar plates. The plates were incubated for 48 hours at 25 C. The zones of fungal growth (or no growth) were analyzed and the minimum total inhibitory concentration (%) was estimated for each agent. Table 3 presents the minimum inhibitory concentration of each agent, in ranked order.
Table 1. Biocide Performance in ASTM D 2020 Fungal Resistancy Test Observed Fungal Growth after 14 Fungus Fungus Sample Days incubation at 28 C Non-Resistant Resistant Control Diluent DMSO Growth Growth Growth x Metasol-TK 100 200ppm No Growth No Growth No Growth x Metasol-TK 100 400ppm No Growth No Growth No Growth x Metasol-TK 100 600ppm No Growth No Growth No Growth x Tox-Guard*Dry 200ppm Growth Growth Growth x Tox-Guard*Dry 400ppm Growth Growth Growth x Tox-Guard*Dry 600ppm Growth Growth Growth x Santoquin 200ppm Growth Growth Growth x Santoquin 400ppm No Growth No Growth No Growth x Santoquin 600ppm No Growth No Growth No Growth X
BIOX-AUSD 200ppm Growth Growth Growth x BIOX-AUSD 400ppm Growth Growth Growth x BIOX-AUSD 600ppm Growth Growth Growth X
Mintrex Cu 200ppm Growth Growth Growth x Mintrex Cu 400ppm Growth Growth Growth x Mintrex Cu 600ppm Growth Growth Growth X
Table 2. Santoquin Performance in ASTM D 2020 Fungal Resistancy Test Observed Fungal Growth after 14 Fungus Fungus Sample Days incubation at 28 C Non- Resistant Resistant Santoquin 0.1 %-1 No growth x Santoquin 0.1%-2 No growth x Santoquin 0.1 %-3 No growth x Santoquin 1.0%-1 No growth x Santoquin 1.0%-2 No growth x Santoquin 1.0%-3 No growth x Kathon 893 0.1 %-1 Growth x Kathon 893 0.1 %-2 Growth x Kathon 893 0.1%-3 Growth x Kathon 893 1.0%-1 Growth x Kathon 893 1.0%-2 Growth x Kathon 893 1.0%-3 Growth x DMSO-1 Growth X
DMSO-2 Growth x DMSO-3 Growth x Table 3. Anti-Fungal Activity of Test Agents Test Agent Minimum Total Inhibitory Concentration %
Cinnamaldehyde <0.005 Dehydroacetic Acid 0.01 Propyl Paraben 0.015 EDTA 0.02 BHA (Butylated H drox Anisole 0.025 Copper Sulfate 0.05 Eugenol 0.05 Alpha Lipoic Acid 0.1 Benzoic Acid 0.1 Beta-Propiolactone 0.1 Carvone 0.1 Citral 0.1 Diacetyl 0.1 H drogen Peroxide 0.1 Piperonal 0.1 Sodium Metabisulfite 0.1 Sulfuric Acid 0.1 TBHQ Tert-But IH droQuinone 0.1 Valeric Acid 0.1 Vanillin 0.1 Acetic Acid 0.2 Activate DA 0.2 Alimet HMTBA /Pro ionic Acid (1:3) 0.2 Butyric Acid 0.2 Hexadec I ridinium Cl 0.2 Proprionic Acid 0.2 Sodium Bisulfite 0.2 Xtract 0.2 65%Pro /20%L s/15%NH4OH 0.5 65%Pro /35%NH4OH 0.5 Benzaldehyde 0.5 Boric Acid 0.5 Copper Mintrex Cu HMTBA 2 0.5 EQ Ethox uin Emulsion 0.5 HCI 0.5 Maleic Acid 0.5 Methyl Paraben 0.5 Phosphoric Acid 0.5 Sodium Diacetate 0.5 Acetaldehyde >0.2 Culbac Liquid >0.2 3-H drox -2-Butanone >0.5 3-H drox ro ionic Acid >0.5 22=
Adipic Acid >0.5 Alpha Tocopherol >0.5 Alpha Toco herol Acetate >0.5 Ascorbic Acid >0.5 Ascorbyl Palmitate >0.5 BHT (Butylated H drox Toluene >0.5 Calcium Acetate >0.5 Calcium Pro ionate >0.5 Citric Acid >0.5 Cysteine >0.5 Decanal >0.5 Delta Tocopherol >0.5 Dilauryl Thiodi ro ionate >0.5 Dodecyl Gallate >0.5 Ethanol >0.5 Ethoxyguin >0.5 Fumaric Acid >0.5 Gallic Acid >0.5 Gluconic Acid >0.5 Glycine >0.5 Glycolic Acid >0.5 HMTBA (2-Hydroxy- >0.5 4 NMeth IThio Butanoic Acid) Lactic Acid >0.5 Lecithin >0.5 Limonene >0.5 Lysine >0.5 Malonic Acid >0.5 Methionine >0.5 MHA (Methionine Hydroxy Analog) >0.5 Octyl Gallate >0.5 Potassium Acetate >0.5 Potassium Benzoate >0.5 Potassium Sorbate >0.5 Propyl Gallate >0.5 Sodium Acetate >0.5 Sodium Benzoate >0.5 Sodium bi-Phosphate >0.5 Sodium Citrate >0.5 Sodium Gluconate >0.5 Sodium Hexametap hosp hate >0.5 Sodium Lactate >0.5 Sodium Proprionate >0.5 Sodium P ro hos hate >0.5 Sodium Sulfite >0.5 Sodium Thiosulfate >0.5 Stearyl Citrate >0.5 Tartaric Acid >0.5 ToxGuard Liquid (New sam le >0.5 Tr to han >0.5 DMSO >1 ToxGuard Liquid (Old sam le >2 ToxGuard Dry (Old sample >3 ToxGuard Dry (New sam le >5
Table 1. Biocide Performance in ASTM D 2020 Fungal Resistancy Test Observed Fungal Growth after 14 Fungus Fungus Sample Days incubation at 28 C Non-Resistant Resistant Control Diluent DMSO Growth Growth Growth x Metasol-TK 100 200ppm No Growth No Growth No Growth x Metasol-TK 100 400ppm No Growth No Growth No Growth x Metasol-TK 100 600ppm No Growth No Growth No Growth x Tox-Guard*Dry 200ppm Growth Growth Growth x Tox-Guard*Dry 400ppm Growth Growth Growth x Tox-Guard*Dry 600ppm Growth Growth Growth x Santoquin 200ppm Growth Growth Growth x Santoquin 400ppm No Growth No Growth No Growth x Santoquin 600ppm No Growth No Growth No Growth X
BIOX-AUSD 200ppm Growth Growth Growth x BIOX-AUSD 400ppm Growth Growth Growth x BIOX-AUSD 600ppm Growth Growth Growth X
Mintrex Cu 200ppm Growth Growth Growth x Mintrex Cu 400ppm Growth Growth Growth x Mintrex Cu 600ppm Growth Growth Growth X
Table 2. Santoquin Performance in ASTM D 2020 Fungal Resistancy Test Observed Fungal Growth after 14 Fungus Fungus Sample Days incubation at 28 C Non- Resistant Resistant Santoquin 0.1 %-1 No growth x Santoquin 0.1%-2 No growth x Santoquin 0.1 %-3 No growth x Santoquin 1.0%-1 No growth x Santoquin 1.0%-2 No growth x Santoquin 1.0%-3 No growth x Kathon 893 0.1 %-1 Growth x Kathon 893 0.1 %-2 Growth x Kathon 893 0.1%-3 Growth x Kathon 893 1.0%-1 Growth x Kathon 893 1.0%-2 Growth x Kathon 893 1.0%-3 Growth x DMSO-1 Growth X
DMSO-2 Growth x DMSO-3 Growth x Table 3. Anti-Fungal Activity of Test Agents Test Agent Minimum Total Inhibitory Concentration %
Cinnamaldehyde <0.005 Dehydroacetic Acid 0.01 Propyl Paraben 0.015 EDTA 0.02 BHA (Butylated H drox Anisole 0.025 Copper Sulfate 0.05 Eugenol 0.05 Alpha Lipoic Acid 0.1 Benzoic Acid 0.1 Beta-Propiolactone 0.1 Carvone 0.1 Citral 0.1 Diacetyl 0.1 H drogen Peroxide 0.1 Piperonal 0.1 Sodium Metabisulfite 0.1 Sulfuric Acid 0.1 TBHQ Tert-But IH droQuinone 0.1 Valeric Acid 0.1 Vanillin 0.1 Acetic Acid 0.2 Activate DA 0.2 Alimet HMTBA /Pro ionic Acid (1:3) 0.2 Butyric Acid 0.2 Hexadec I ridinium Cl 0.2 Proprionic Acid 0.2 Sodium Bisulfite 0.2 Xtract 0.2 65%Pro /20%L s/15%NH4OH 0.5 65%Pro /35%NH4OH 0.5 Benzaldehyde 0.5 Boric Acid 0.5 Copper Mintrex Cu HMTBA 2 0.5 EQ Ethox uin Emulsion 0.5 HCI 0.5 Maleic Acid 0.5 Methyl Paraben 0.5 Phosphoric Acid 0.5 Sodium Diacetate 0.5 Acetaldehyde >0.2 Culbac Liquid >0.2 3-H drox -2-Butanone >0.5 3-H drox ro ionic Acid >0.5 22=
Adipic Acid >0.5 Alpha Tocopherol >0.5 Alpha Toco herol Acetate >0.5 Ascorbic Acid >0.5 Ascorbyl Palmitate >0.5 BHT (Butylated H drox Toluene >0.5 Calcium Acetate >0.5 Calcium Pro ionate >0.5 Citric Acid >0.5 Cysteine >0.5 Decanal >0.5 Delta Tocopherol >0.5 Dilauryl Thiodi ro ionate >0.5 Dodecyl Gallate >0.5 Ethanol >0.5 Ethoxyguin >0.5 Fumaric Acid >0.5 Gallic Acid >0.5 Gluconic Acid >0.5 Glycine >0.5 Glycolic Acid >0.5 HMTBA (2-Hydroxy- >0.5 4 NMeth IThio Butanoic Acid) Lactic Acid >0.5 Lecithin >0.5 Limonene >0.5 Lysine >0.5 Malonic Acid >0.5 Methionine >0.5 MHA (Methionine Hydroxy Analog) >0.5 Octyl Gallate >0.5 Potassium Acetate >0.5 Potassium Benzoate >0.5 Potassium Sorbate >0.5 Propyl Gallate >0.5 Sodium Acetate >0.5 Sodium Benzoate >0.5 Sodium bi-Phosphate >0.5 Sodium Citrate >0.5 Sodium Gluconate >0.5 Sodium Hexametap hosp hate >0.5 Sodium Lactate >0.5 Sodium Proprionate >0.5 Sodium P ro hos hate >0.5 Sodium Sulfite >0.5 Sodium Thiosulfate >0.5 Stearyl Citrate >0.5 Tartaric Acid >0.5 ToxGuard Liquid (New sam le >0.5 Tr to han >0.5 DMSO >1 ToxGuard Liquid (Old sam le >2 ToxGuard Dry (Old sample >3 ToxGuard Dry (New sam le >5
Claims (52)
1. A process of producing a paper product, the process comprising contacting a substituted 1,2-dihydroquinoline compound with a composition comprising pulp.
2. The process of claim 1, further comprising forming a paper web from the pulp; and drying the paper web.
3. The process of claim 2, further comprising forming the paper web from the pulp by extracting water to define paper fibers having a plurality of interstices, the substituted 1,2-dihydroquinoline compound being deposited within the interstices.
4. The process of claim 1, wherein the substituted 1,2-dihydroquinoline is a compound having the formula:
wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
5. The process of claim 1, wherein the substituted 1,2-dihydroquinoline compound is 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline.
6. The process of claim 1, wherein the substituted 1,2-dihydroquinoline is added to the pulp at a concentration of at least 300 ppm.
7. The process of claim 1, wherein the substituted 1,2-dihydroquinoline is added to the pulp at a concentration of at least 0.1% by weight.
8. The process of claim 1, wherein the substituted 1,2-dihydroquinoline is added to the pulp at a concentration from about 0.1% to about 6% by weight.
9. The process of claim 1, further comprising adding an additional agent to the pulp, the agent selected from the group consisting of a surfactant, an antioxidant, a slimicide, and an anti-microbial.
10. The process of claim 9, wherein the agent is a surfactant selected from the group consisting of cationic surfactants, non-ionic surfactants and combinations thereof.
11. The process of claim 10, wherein the surfactant is selected from the group consisting of ethoxylated sorbitans, ethoxylated fatty acids, polysorbate-80, glycerol oleate, oleate salts, coconate salts, laurelate salts and combinations thereof.
12. The process of claim 9, wherein the agent is an anti-microbial selected from the group consisting of halogenated salicylanilides, halogenated carbanilides, alkylbenzoylacrylates, thiuram sulfides, quaternary ammonium compounds, halogenated anilides of thiophene carboxylic acids, chlorohexidines, dithiocarbamates, halogenated bisphenols, halogenated diphenyl ethers, and antibiotics.
13. The process of claim 9, wherein the agent is an anti-microbial selected from the group consisting of 2-bromo-2-nitropropane-1,3-diol; 1,5-pentanedial;
tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine.
tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine.
14. The process of claim 9, wherein the agent is an antioxidant selected from the group consisting of alpha-lipoic acid, alpha-tocopherol, alpha-tocopherol acetate, ascorbic acid, ascorbyl palmitate, beta-propiolactone, BHA, BHT, carvone, cinnamaldehyde, citral, decanal, dehydroacetic acid, delta-tocopherol, diacetyl, dilauryl thiodipropionate, dodecyl gallate, eugenol, gallic acid, limonene, octyl gallate, oregano oil, piperonal, propyl gallate, stearyl citrate, TBHQ, and vanillin.
15. The process of claim 1, wherein the 1,2-dihydroquinoline compound inhibits microbial growth or replication within the paper product or on the surface of the paper product.
16. The process of claim 15, wherein the microbe is selected from the group consisting of a bacterium, a fungi, a yeast and a virus.
17. The process of claim 16, wherein the microbe is selected from the group consisting of Pseudomonas, Klebsiella, Enterobacter, Bacillus, Desulphovibrio, Candida, Saccharomyces, and Aspergillus.
18. The process of claim 1, wherein the paper product is paper or paperboard.
19. A method of inhibiting microbial growth or replication in a paper product, the method comprising contacting the paper product with a substituted 1,2-dihydroquinoline compound.
20. The method of claim 19, wherein the substituted 1,2-dihydroquinoline is a compound having the formula:
wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
21. The method of claim 19, wherein the substituted 1,2-dihydroquinoline compound is 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline.
22. The method of claim 19, wherein the substituted 1,2-dihydroquinoline is present in the paper product at a concentration of at least 300 ppm.
23. The method of claim 19, wherein the substituted 1,2-dihydroquinoline is present in the paper product at a concentration of at least 0.1% by weight.
24. The method of claim 19, wherein the substituted 1,2-dihydroquinoline is present in the paper product at a concentration from about 0.1% to about 5% by weight.
25. The method of claim 19, further comprising contacting an additional agent with the paper product, the agent selected from the group consisting of a surfactant, an antioxidant, a slimicide, and an anti-microbial.
26. The method of claim 25, wherein the agent is a surfactant selected from the group consisting of cationic surfactants, non-ionic surfactants and combinations thereof.
27. The method of claim 26, wherein the surfactant is selected from the group consisting of ethoxylated sorbitans, ethoxylated fatty acids, polysorbate-80, glycerol oleate, oleate salts, coconate salts, laurelate salts and combinations thereof.
28. The method of claim 25, wherein the agent is an anti-microbial selected from the group consisting of halogenated salicylanilides, halogenated carbanilides, alkylbenzoylacrylates, thiuram sulfides, quaternary ammonium compounds, halogenated anilides of thiophene carboxylic acids, chlorohexidines, dithiocarbamates, halogenated bisphenols, halogenated diphenyl ethers, and antibiotics.
29. The method of claim 25, wherein the agent is an anti-microbial selected from the group consisting of 2-bromo-2-nitropropane-1,3-diol; 1,5-pentanedial;
tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine.
tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine.
30. The method of claim 25, wherein the agent is an antioxidant selected from the group consisting of alpha-lipoic acid, alpha-tocopherol, alpha-tocopherol acetate, ascorbic acid, ascorbyl palmitate, beta-propiolactone, BHA, BHT, carvone, cinnamaldehyde, citral, decanal, dehydroacetic acid, delta-tocopherol, diacetyl, dilauryl thiodipropionate, dodecyl gallate, eugenol, gallic acid, limonene, octyl gallate, oregano oil, piperonal, propyl gallate, stearyl citrate, TBHQ, and vanillin.
31. The method of claim 19, wherein the microbe is selected from the group consisting of a bacterium, a fungi, a yeast and a virus.
32. The method of claim 19, wherein the microbe is selected from the group consisting of Pseudomonas, Klebsiella, Enterobacter, Bacillus, Desulphovibrio, Candida, Saccharomyces, and Aspergillus.
33. The method of claim 19, wherein the paper product is paper or paperboard.
34. A paper product, the product comprising paper and a substituted 1,2-dihydroquinoline compound.
35. The paper product of claim 34, wherein the substituted 1,2-dihydroquinoline compound is disposed on the surface of the paper product.
36. The paper product of claim 34, the paper product having paper fibers comprising a plurality of interstices, the substituted 1,2-dihydroquinoline compound being deposited within the interstices.
37. The paper product of claim 34, wherein the substituted 1,2-dihydroquinoline is a compound having the formula:
wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
wherein:
R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and an alkyl group having from 1 to about 6 carbons;
R5 is an alkoxy group having from 1 to about 12 carbons.
38. The paper product of claim 34, wherein the substituted 1,2-dihydroquinoline compound is 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline.
39. The paper product of claim 34, wherein the substituted 1,2-dihydroquinoline is present in the paper product at a concentration of at least 300 ppm.
40. The paper product of claim 34, wherein the substituted 1,2-dihydroquinoline is present in the paper product at a concentration of at least 0.1%
by weight.
by weight.
41. The paper product of claim 34, wherein the substituted 1,2-dihydroquinoline is present in the paper product at a concentration from about 0.1%
to about 5% by weight.
to about 5% by weight.
42. The paper product of claim 34, further comprising an additional agent selected from the group consisting of a surfactant, an antioxidant, a slimicide, and an anti-microbial.
43. The paper product of claim 42, wherein the agent is a surfactant selected from the group consisting of cationic surfactants, non-ionic surfactants and combinations thereof.
44. The paper product of claim 43, wherein the surfactant is selected from the group consisting of ethoxylated sorbitans, ethoxylated fatty acids, polysorbate-80, glycerol oleate, oleate salts, coconate salts, laurelate salts and combinations thereof.
45. The paper product of claim 42, wherein the agent is an anti-microbial selected from the group consisting of halogenated salicylanilides, halogenated carbanilides, alkylbenzoylacrylates, thiuram sulfides, quaternary ammonium compounds, halogenated anilides of thiophene carboxylic acids, chlorohexidines, dithiocarbamates, halogenated bisphenols, halogenated diphenyl ethers, and antibiotics.
46. The paper product of claim 45, wherein the agent is an anti-microbial selected from the group consisting of 2-bromo-2-nitropropane-1,3-diol; 1,5-pentanedial; tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione; and 1,3,5-tris-(2-hydroxyethyl)-1,3,5-hexahydrotriazine.
47. The paper product of claim 42, wherein the agent is an antioxidant selected from the group consisting of alpha-lipoic acid, alpha-tocopherol, alpha-tocopherol acetate, ascorbic acid, ascorbyl palmitate, beta-propiolactone, BHA, BHT, carvone, cinnamaldehyde, citral, decanal, dehydroacetic acid, delta-tocopherol, diacetyl, dilauryl thiodipropionate, dodecyl gallate, eugenol, gallic acid, limonene, octyl gallate, oregano oil, piperonal, propyl gallate, stearyl citrate, TBHQ, and vanillin.
48. The paper product of claim 34, wherein the 1,2-dihydroquinoline compound inhibits microbial growth or replication within the paper product or on the surface of the paper product.
49. The paper product of claim 48, wherein the microbe is selected from the group consisting of a bacterium, a fungi, a yeast and a virus.
50. The paper product of claim 48, wherein the microbe is selected from the group consisting of Pseudomonas, Klebsiella, Enterobacter, Bacillus, Desulphovibrio, Candida, Saccharomyces, and Aspergillus.
51. The paper product of claim 34, wherein the paper product is paper or paperboard.
52. A composition comprising a substituted 1,2-dihydroquinoline compound and pulp or a pulp slurry.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US72365105P | 2005-10-05 | 2005-10-05 | |
US60/723,651 | 2005-10-05 | ||
PCT/US2006/038783 WO2007044398A2 (en) | 2005-10-05 | 2006-10-04 | Anti-microbial paper products having a substituted 1,2-dihydroquinoline |
Publications (1)
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CA2624282A1 true CA2624282A1 (en) | 2007-04-19 |
Family
ID=37943345
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CA002624282A Abandoned CA2624282A1 (en) | 2005-10-05 | 2006-10-04 | Anti-microbial paper products having a substituted 1,2-dihydroquinoline |
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US (1) | US20070089847A1 (en) |
CA (1) | CA2624282A1 (en) |
WO (1) | WO2007044398A2 (en) |
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US8691843B2 (en) * | 2006-07-12 | 2014-04-08 | Novus International, Inc. | Antioxidant combinations for use in ruminant feed rations |
US8404714B2 (en) * | 2008-01-04 | 2013-03-26 | Novus International, Inc. | Combinations to improve animal health and performance |
FR2945180B1 (en) * | 2009-05-07 | 2013-02-22 | Arjowiggins Security | INFORMATION CARRIER HAVING ANTIVIRAL PROPERTIES AND METHOD FOR MANUFACTURING THE SAME |
FR2967074B1 (en) | 2010-11-08 | 2013-06-28 | Arjowiggins Security | FLUID COMPOSITIONS CAPABLE OF FORMING A COATING HAVING ANTIVIRAL PROPERTIES |
EP2776624A1 (en) | 2011-11-08 | 2014-09-17 | MAG Aerospace Industries, Inc. | Trash compactor carton with antimicrobial properties |
CN102659345B (en) * | 2012-05-07 | 2013-07-03 | 长沙理工大学 | Preparation method for high-temperature-resistant heat-insulating paper |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US2626213A (en) * | 1948-12-21 | 1953-01-20 | Raybestos Manhattan Inc | Asbestos dispersions and method of forming same |
US3056717A (en) * | 1958-04-15 | 1962-10-02 | Armstrong Cork Co | Deposition of synthetic rubber on dyestuff-reacted asbestos fibers |
US3615549A (en) * | 1968-10-14 | 1971-10-26 | Mitsubishi Paper Mills Ltd | Silver halide photographic paper which produces warm-toned image color and method of making it |
US3713963A (en) * | 1970-11-27 | 1973-01-30 | Hager Ab | Dry mixture of copper sulfate 8-hydroxyquinoline sulfate, and sulphuric acid as a preservative additive to a fibrous slurry prior to forming paper therefrom |
JPS5738185A (en) * | 1980-08-20 | 1982-03-02 | Matsushita Electric Ind Co Ltd | Ink jet recording paper |
DK328483D0 (en) * | 1983-07-15 | 1983-07-15 | Magius N W Von | ETHOXYQUINSALTE |
US4533435A (en) * | 1984-06-07 | 1985-08-06 | Microban Products Company | Antimicrobial paper |
US4871423A (en) * | 1987-08-10 | 1989-10-03 | Hoechst Celanese Corporation | Enhanced dithionite bleaching |
FR2663195A1 (en) * | 1990-06-13 | 1991-12-20 | Rhone Poulenc Agrochimie | FOLIAR FUNGICIDE TREATMENT PROCESS USING TRIAZOLE AND FUNGICIDE COMPOSITION FOR IMPLEMENTING THE METHOD. |
US5200213A (en) * | 1991-08-12 | 1993-04-06 | Wm. Wrigley Jr. Company | Gum base containing tocopherol |
US5607597A (en) * | 1995-04-28 | 1997-03-04 | Betzdearborn Inc. | Method for enhancing biocidal activity |
DE10209934A1 (en) * | 2002-03-07 | 2003-10-02 | Beta Tec Hopfenprodukte Gmbh | Process for the control of biological processes in water |
US6939442B2 (en) * | 2003-01-21 | 2005-09-06 | Silverco Llc | Antimicrobial paper |
US20050136097A1 (en) * | 2003-12-19 | 2005-06-23 | Kimberly-Clark Worldwide, Inc. | Soft paper-based products |
-
2006
- 2006-10-04 WO PCT/US2006/038783 patent/WO2007044398A2/en active Application Filing
- 2006-10-04 CA CA002624282A patent/CA2624282A1/en not_active Abandoned
- 2006-10-04 US US11/538,656 patent/US20070089847A1/en not_active Abandoned
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