ITMI20000886A1 - Miscele stabilizzanti liquide per polimeri organici - Google Patents
Miscele stabilizzanti liquide per polimeri organici Download PDFInfo
- Publication number
- ITMI20000886A1 ITMI20000886A1 IT2000MI000886A ITMI20000886A ITMI20000886A1 IT MI20000886 A1 ITMI20000886 A1 IT MI20000886A1 IT 2000MI000886 A IT2000MI000886 A IT 2000MI000886A IT MI20000886 A ITMI20000886 A IT MI20000886A IT MI20000886 A1 ITMI20000886 A1 IT MI20000886A1
- Authority
- IT
- Italy
- Prior art keywords
- butyl
- bis
- mixtures
- liquid
- class
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims description 74
- 239000007788 liquid Substances 0.000 title claims description 40
- 230000000087 stabilizing effect Effects 0.000 title claims description 30
- 229920000620 organic polymer Polymers 0.000 title claims description 25
- -1 bufyl Chemical group 0.000 claims description 107
- 229920001577 copolymer Polymers 0.000 claims description 36
- 150000001875 compounds Chemical class 0.000 claims description 35
- 150000002989 phenols Chemical class 0.000 claims description 26
- 229920000642 polymer Polymers 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 17
- 150000002148 esters Chemical class 0.000 claims description 16
- 239000003381 stabilizer Substances 0.000 claims description 15
- 229920002857 polybutadiene Polymers 0.000 claims description 14
- 239000005062 Polybutadiene Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 7
- 239000002174 Styrene-butadiene Substances 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 5
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 4
- 239000005061 synthetic rubber Substances 0.000 claims description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229920000800 acrylic rubber Polymers 0.000 claims description 3
- 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 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 125000001421 myristyl group Chemical group [H]C([*])([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])C([H])([H])[H] 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 125000004079 stearyl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000002889 tridecyl group Chemical group [H]C([*])([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])[H] 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 2
- 125000002704 decyl 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])* 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 2
- 125000002960 margaryl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000001400 nonyl group Chemical group [H]C([*])([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])[H] 0.000 claims description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000000913 palmityl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000002958 pentadecyl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 125000002948 undecyl group Chemical group [H]C([*])([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])[H] 0.000 claims description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 45
- 229910052757 nitrogen Inorganic materials 0.000 description 23
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 21
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 11
- 239000004952 Polyamide Substances 0.000 description 11
- 229920002647 polyamide Polymers 0.000 description 11
- 239000005977 Ethylene Substances 0.000 description 10
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 9
- 229920001684 low density polyethylene Polymers 0.000 description 9
- 239000004702 low-density polyethylene Substances 0.000 description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 7
- 239000007859 condensation product Substances 0.000 description 7
- 150000001993 dienes Chemical class 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 6
- 150000001412 amines Chemical class 0.000 description 6
- 239000012964 benzotriazole Substances 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical compound NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 description 5
- 239000007983 Tris buffer Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 5
- 239000004700 high-density polyethylene Substances 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 150000005846 sugar alcohols Polymers 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- BPXVHIRIPLPOPT-UHFFFAOYSA-N 1,3,5-tris(2-hydroxyethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound OCCN1C(=O)N(CCO)C(=O)N(CCO)C1=O BPXVHIRIPLPOPT-UHFFFAOYSA-N 0.000 description 4
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 4
- CKPKHTKLLYPGFM-UHFFFAOYSA-N 6,6-dimethylheptane-1,1-diol Chemical compound CC(CCCCC(O)O)(C)C CKPKHTKLLYPGFM-UHFFFAOYSA-N 0.000 description 4
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- PKTNMTDLDLSRDE-UHFFFAOYSA-N C1OC2(P(=O)=O)OCC1(CO)CO2 Chemical compound C1OC2(P(=O)=O)OCC1(CO)CO2 PKTNMTDLDLSRDE-UHFFFAOYSA-N 0.000 description 4
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 4
- 239000004716 Ethylene/acrylic acid copolymer Substances 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 4
- FQUNFJULCYSSOP-UHFFFAOYSA-N bisoctrizole Chemical compound N1=C2C=CC=CC2=NN1C1=CC(C(C)(C)CC(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)CC(C)(C)C)N2N=C3C=CC=CC3=N2)O)=C1O FQUNFJULCYSSOP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 3
- RXFCIXRFAJRBSG-UHFFFAOYSA-N 3,2,3-tetramine Chemical compound NCCCNCCNCCCN RXFCIXRFAJRBSG-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 125000005250 alkyl acrylate group Chemical group 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 235000006708 antioxidants Nutrition 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 229920000554 ionomer Polymers 0.000 description 3
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 150000002815 nickel Chemical class 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- ZQMPWXFHAUDENN-UHFFFAOYSA-N 1,2-bis[(2-methylphenyl)amino]ethane Natural products CC1=CC=CC=C1NCCNC1=CC=CC=C1C ZQMPWXFHAUDENN-UHFFFAOYSA-N 0.000 description 2
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 2
- BUGAMLAPDQMYNZ-UHFFFAOYSA-N 1-(2,4,4-trimethylpentan-2-yl)-10h-phenothiazine Chemical class S1C2=CC=CC=C2NC2=C1C=CC=C2C(C)(C)CC(C)(C)C BUGAMLAPDQMYNZ-UHFFFAOYSA-N 0.000 description 2
- BWJKLDGAAPQXGO-UHFFFAOYSA-N 2,2,6,6-tetramethyl-4-octadecoxypiperidine Chemical compound CCCCCCCCCCCCCCCCCCOC1CC(C)(C)NC(C)(C)C1 BWJKLDGAAPQXGO-UHFFFAOYSA-N 0.000 description 2
- SLUKQUGVTITNSY-UHFFFAOYSA-N 2,6-di-tert-butyl-4-methoxyphenol Chemical compound COC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SLUKQUGVTITNSY-UHFFFAOYSA-N 0.000 description 2
- SAEZGDDJKSBNPT-UHFFFAOYSA-N 3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione Chemical compound O=C1C(CCCCCCCCCCCC)CC(=O)N1C1CC(C)(C)N(C)C(C)(C)C1 SAEZGDDJKSBNPT-UHFFFAOYSA-N 0.000 description 2
- ACZGCWSMSTYWDQ-UHFFFAOYSA-N 3h-1-benzofuran-2-one Chemical class C1=CC=C2OC(=O)CC2=C1 ACZGCWSMSTYWDQ-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 2
- 239000013032 Hydrocarbon resin Substances 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- JWUXJYZVKZKLTJ-UHFFFAOYSA-N Triacetonamine Chemical compound CC1(C)CC(=O)CC(C)(C)N1 JWUXJYZVKZKLTJ-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
"MISCELE STABILIZZANTI LIQUIDE PER POLIMERI ORGANICI"
DESCRIZIONE
La presente invenzione riguarda miscele stabilizzanti liquide per polimeri organici.
Più in particolare la presente invenzione riguarda miscele stabilizzanti liquide per polimeri organici comprendenti un composto appartenente alla classe dei fenoli stericamente impediti liquido ed un composto appartenente alla classe dei fenoli stericamente impediti solido ed il loro utilizzo nella stabilizzazione alla degradazione causata dall'ossigeno, dal calore e/o dalla luce, dei polimeri organici.
La presente invenzione riguarda inoltre le composizioni polimeriche stabilizzate con le suddette miscele stabilizzanti ed i manufatti ottenuti dalla loro lavorazione.
E' noto che l'utilizzo di additivi allo stato solido spesso presenta alcuni inconvenienti. Ad esempio, in alcuni casi, gli additivi allo stato solido, che si presentano in forma di polveri cristalline, di scaglie o di gocce allo stato vetroso, vengono macinati in polveri finissime prima di essere aggiunti alle emulsioni di lattici di gomma naturale o sintetica per evitare che, nel manufatto finale, dopo la coagulazione del lattice, l'essicamento e la vulcanizzazione, rimangano granuli di additivo .
Altro inconveniente è l'aggiunta di un additivo allo stato solido in un processo in cui, detto additivo, viene aggiunto in un particolare stadio di lavorazione come, ad esempio, durante la miscelazione di copolimeri, oppure durante la polimerizzazione e/o copolimerizzazione. Tale inconveniente si verifica, ad esempio, nel caso in cui lo stabilizzante solido deve essere aggiunto ad una soluzione od emulsione di un polimero al termine della polimerizzazione come, ad esempio, nella preparazione dei seguenti polimeri: polioli, poliuretani, gomme nitriliche, SBR, poliisoprene, polibutadiene, ABS, PVC, ecc. In questi casi, è necessario preparare a parte una soluzione dell'additivo in un solvente organico idoneo oppure una dispersione acquosa dello stesso ed aggiungere, detta soluzione o dispersione, alla soluzione od emulsione del polimero.
La Richiedente ha ora trovato miscele stabilizzanti liquide comprendenti un composto appartenente alla classe dei fenoli stericamente impediti liquido ed un composto appartenente alla classe dei fenoli stericamente impediti solido che sono in grado di superare gli inconvenienti dell'arte nota. Dette miscele sono in grado di rimanere liquide, in modo permanente, sia a temperatura ambiente che a temperature inferiori a 0°C (ad esempio, fino a - 30°C) e, di conseguenza, possono essere utilizzate ogni qualvolta l'aggiunta di uno stabilizzante in forma solida risulta essere particolarmente onerosa.
Costituiscono pertanto oggetto della presente invenzione miscele stabilizzanti liquide per polimeri organici comprendenti:
(a) un composto appartenente alla classe dei fenoli stericamente impediti liquido costituito da esteri o da miscele di esteri aventi formula generale (I):
in cui
Ri ed R2, uguali o diversi tra loro
rappresentano un gruppo alchilico
lineare o ramificato;
R3 rappresenta un gruppo alchilico
lineare o ramificato, oppure uno dei seguenti gruppi:
in cui m ed n sono un numero intero compreso tra 0 e 11 estremi inclusi; ed m n è 10 o 11; e p è 12 o 13;
(b) un composto appartenente alla classe dei fenoli sfericamente impediti solido avente formula
in cui n è un numero intero compreso tra 0 e 10 estremi inclusi.
Esempi di gruppi alchilici , lineari o ra¬
mificati, sono: metile, etile, propile, isopropile, butile, 2-butile, isobutile, t-butile, penti
le, 2-pentile, esile, eptile, ottile, 2-etilesile, t-ottile, nonile, decile, undecile, dodecile, tridecile, tetradecile, pentadecile, esadecile, eptadecile, ottadecile, ecc.
Composti appartenenti alla classe dei fenoli stericamente impediti liquidi (a) preferiti allo scopo della presente invenzione sono quelli in cui Ri ed R2, uguali o diversi tra loro, sono: metile etile, isopropile, t-butile; ed R3 rappresenta uno dei seguenti gruppi:
in cui m, n e p, hanno gli stessi significati sopra descritti .
Esempi specifici di composti appartenenti alla classe dei fenoli stericamente impediti liquidi (a) utili allo scopo della presente invenzione sono l'Anox® BF della Great Lakes Chemical Corporation e l'Irganox® 1135 della Ciba.
Esempio specifico di composto appartenente alla classe dei fenoli stericamente impediti solido (b) utile allo scopo della presente invenzione è il Lowinox® CPL della Great Lakes Chemical Corporation noto anche come Wingstay® L della Goodyear.
I composti appartenenti alla classe dei fenoli stericamente impediti liquidi (a) sono composti commerciali oppure, possono essere preparati per transesterificazione di un estere metilico avente formula generale (III):
in cui Ri ed R2 hanno gli stessi significati sopra descritti, con un alcool od una miscela di alcooli aventi formula generale (IV):
R3-OH (IV)
in cui R3 ha gli stessi significati sopra descritti, in presenza di catalizzatori a base di stagno o di zinco quali, ad esempio, dibutil stagno dilaurato, dibutil stagno ossido, zinco ottanoato, ecc., come descritto, ad esempio, nel brevetto EP 502,520.
Il composto appartenente alla classe dei fenoli stericamente impediti solidi (b) è commerciale oppure, può essere preparato per reazione del pcresolo con diciclopentadiene e successiva alchilazione con isobutilene, in presenza di catalizzatori acidi quali, ad esempio, trifluoruro di boro, acido metansolfonico, acido p-toluensolfonico, ecc., come descritto, ad esempio, nel brevetto GB 1,068,995.
Le miscele stabilizzanti liquide oggetto della presente invenzione possono essere preparate attraverso vari procedimenti.
Un procedimento per la preparazione delle suddette miscele stabilizzanti liquide comprende:
(a') scaldare il composto appartenente alla classe dei fenoli stericamente impediti liquido (a) a temperatura compresa tra 60°C e 180°C, sotto agitazione;
(b') aggiungere, il composto appartenente alla classe dei fenoli stericamente impediti solido (b), mantenendo la temperatura compresa tra 60°C e 180°C, preferibilmente compresa tra 90°C e 140°C, e mantenenere il tutto sotto agitazione, fino a completo scioglimento di detto composto (b), per un tempo compreso tra 5 minuti e 100 minuti, preferibilmente tra 10 minuti e 60 minuti, ottenendosi una miscela liquida.
La miscela liquida così ottenuta viene scaricata in fusti o serbatoi e rimane liquida, senza riprecipitazioni del composto appartenente alla classe dei fenoli stericamente impediti solido (b), in modo permanente, sia a temperatura ambiente, sia a temperature inferiori a 0°C come già detto sopra.
I rapporti in peso tra il composto appartenente alla classe dei fenoli sfericamente impediti liquido (a) ed il composto appartenente alla classe dei fenoli sfericamente impediti solido (b) sono compresi tra 90:10 e 30:70, preferibilmente tra 80:20 e 50:50, ancora più preferibilmente tra 60:40 e 70:30.
Un procedimento alternativo prevede che, al termine del procedimento di preparazione del composto appartenente alla classe dei fenoli sfericamente impediti solido (b) ottenuto come descritto nel brevetto GB 1,068,995 che rientra a far parte integrante della presente domanda di brevetto, e, più precisamente, dopo la neutralizzazione del catalizzatore utilizzato, i lavaggi neutri e la distillazione del solvente di reazione, prima di versare detto composto (b) liquido, fuso a 175°C, su un nastro e raffreddarlo per ottenere gocce o scaglie, venga direttamente aggiunto il composto appartenente alla classe dei fenoli sfericamente impediti liquido (a): si opera sotto agitazione ed alle stesse condizioni operative dello stadio (b'} sopra descritto ottenendosi la miscela stabilizzante liquida desiderata.
Le miscele stabilizzanti liquide oggetto della presente invenzione sono in grado di stabilizzare i polimeri organici contro la degradazione causata dall'ossigeno, dal calore e/o dalla luce. Esempi di polimeri organici a cui possono essere aggiunte sono:
1. Polimeri delle monoolefine e delle diolefine come, ad esempio, polipropilene, poliisobutilene, polibut-l-ene, poli-4-metilpent-l-ene, poliisoprene o polibutadiene; così come polimeri delle cicloolefine come, ad esempio, ciclopentene o norbornene; polietilene (che può essere opzionalmente reticolato) come, ad esempio, polietilene ad elevata densità (HDPE), polietilene ad elevata densità e ad elevato peso molecolare ((HDPE-HMW), polietilene ad elevata densità ed ad elevatissimo peso molecolare ("ultrahigh molecular weight") (HDPE-UHMW), polietilene a media densità (MDPE), polietilene a bassa densità (LDPE), polietilene lineare a bassa densità (LLDPE), polietilene ramificato a bassa densità (BLDPE), (VLDPE), (ULDPE).
Le poliolefine quali, ad esempio le monolefine esemplificate nel paragrafo precedente, preferibilmente il polietilene ed il polipropilene, possono essere preparate attraverso diversi metodi noti in letteratura, preferibilmente utilizzando i seguenti metodi:
(a) polimerizzazione radicalica (generalmente condotta ad elevata pressione e ad elevata temperatura);
(b) polimerizzazione catalìtica utilizzando un catalizzatore che normalmente contiene uno o più metalli dei gruppi IVb, Vb, VIb o Vili della Tavola Periodica. Detti metalli, generalmente, hanno uno o più leganti quali, ad esempio, ossidi, alogenuri, alcoolati, esteri, eteri, animine, alchili, alchenili e/o arili che possono essere π- oppure σ-coordinati. Questi complessi metallici possono essere in forma libera oppure supportati su substrati quali, ad esempio, magnesio cloruro attivato, titanio(III)cloruro, allumina od ossido di silicio. Detti catalizzatori possono essere solubili od insolubili nel mezzo di polimerizzazione. I catalizzatori possono essere utilizzati da soli oppure in presenza di altri attivatori quali, ad esempio, alchili metallici, idruri metallici, alogenuri di alchili metallici, ossidi di alchilici metallici od alchilossani metallici, detti metalli essendo elementi appartenenti ai gruppi la, Ila e/o Illa della Tavola Periodica. Gli attivatori possono essere convenientemente modificati con altri gruppi esterei, eterei, amminici o silil-eterei. Detti sistemi catalitici vengono usualmente chiamati Phillips, Standard Oil Indiana, Ziegler (-Natta), TNZ (DuPont), metallocene o "single site catalyst" (SSC).
2. Miscele dei polimeri descritti al punto (1) come, ad esempio, miscele di polipropilene con poliisobutilene; miscele di polipropilene con polietilene (ad esempio, PP/HDPE, PP/LDPE); miscele di differenti tipi di polietilene (ad esempio, LDPE/HDPE) .
3. Copolimeri delle monoolefine e delle diolefine tra loro o con altri monomeri vinilici come, ad esempio, copolimeri etilene/propilene, polietilene lineare a bassa densità (LLDPE) e sue miscele con polietilene a bassa densità (LDPE), copolimeri propilene/but-l-ene, copolimeri propilene/isobutilene, copolimeri etilene/but-l-ene, copolimeri etilene/esene, copolimeri etilene/metilpentene, copolimeri etilene/eptene, copolimeri etilene/ottene, copolimeri propilene/butadiene, copolimeri isobutilene/isoprene, copolimeri etilene/alchil acrilato, copolimeri etilene/alchil metacrilato, copolimeri etilene/vinil acetato e loro copolimeri con monossido di carbonio o copolimeri etilene/acido acrilico e loro sali (ionomeri) così come terpolimeri dell'etilene con propilene ed un diene come, ad esempio, esadiene, diciclopentadiene o etilidenenorbornene; ed anche miscele di detti copolimeri tra loro oppure con i polimeri sopra riportati al punto (1) quali, ad esempio, copolimeri polipropilene/etilene/propilene, copolimeri LDPE/etilene/-vinil acetato (ÈVA), copolimeri LDPE/etilene/acido acrilico (EAA), LLDPE/EVA, LLDPE/EAA, e copolimeri alternati o "random" polialchilene/monossido di carbonio e loro miscele con altri polimeri quali, ad esempio, poliammidi.
4. Resine idrocarburiche (ad esempio, C5-C9) comprendenti le loro modificazioni idrogenate (ad esempio, resine adesivanti) e miscele con polialchilene ed amido.
5. Polistirene, poli (p-metilstirene), poli(a-metilstirene).
6. Copolimeri dello stirene o dell'a-metilstirene con dieni o derivati acrilici come, ad esempio, stirene/butadiene, stirene/acrilonitrile, stirene/alchil metacrilato, stirene/butadiene/alchil acrilato, stirene/butadiene/alchil metacrilato, stirene/anidride maleica, stirene/acrilonitrile/metil acrilato; miscele, aventi un elevato carico di rottura, tra copolimeri dello stirene ed un altro polimero come, ad esempio, un poliacrilato, un polimero di un diene od un terpolimero etilene/propilene/diene, copolimeri a blocchi dello stirene come, ad esempio, stirene/butadiene/stirene, stirene/isoprene/stirene , stirene/etilene/butilene/stirene o stirene/etilene/propilene/stirene.
7. Copolimeri graffati dello stirene o dell'ametilstirene come, ad esempio, stirene in polibutadiene, stirene in polibutadiene/stirene o copolimeri polibutadiene/acrilonitrile; stirene ed acrilonitrile (o metacrilonitrile) in polibutadiene; stirene, acrilonitrile e metilmetacrilato in polibutadiene; stirene ed anidride maleica in polibutadiene; stirene, acrilonitrile ed anidride maleica o maleimmide in polibutadiene; stirene e maleimmide in polibutadiene; stirene ed alchilacrilati od alchilmetacrilati in polibutadiene; stirene ed acrilonitrile in terpolimeri etilene/propilene/diene, stirene ed acrilonitrile in polialchil acrilati o polialchil metacrilati, stirene ed acrilonitrile in copolimeri acrilato/butadiene, così come miscele dei copolimeri sopra riportati con i copolimeri riportati al punto (6) come, ad esempio, miscele di copolimeri note come ABS, MBS, ASA o AES;
8. Polimeri contenenti alogeni come, ad esempio, policloroprene, gomme clorurate, copolimeri isobutilene-isoprene clorurati o brominati ("halobutyl rubber"), polietilene clorurato o clorosulfonato, copolimeri etilene ed etilene clorurato, omopolimeri e copolimeri dell'epicloridrina, in particolare polimeri di composti vinilici contenenti alogeni come, ad esempio, polivinil cloruro, polivinilidene cloruro, polivinil fluoruro o polivinilidene fluoruro; ed anche loro copolimeri come, ad esempio, vinil cloruro/vinilidene cloruro, vinil cloruro/vinil acetato o vinilidene cloruro vinil acetato.
9. Polimeri derivati da acidi α,β-insaturi e loro derivati come, ad esempio, poliacrilati e polimetacrilati, polimetil metacrilati, poliacrilammidi e poliacrilonitrili, modificati all'impatto con butil acrilato.
10. Copolimeri dei monomeri di cui al punto (9) tra loro o con altri monomeri insaturi come, ad esempio, copolimeri acrilonitrile/butadiene, copolimeri acrilonitrile/alchil acrilato, copolimeri acrilonitrile/alcossialchil acrilato o copolimeri acrilonitrile/alogenuro vinilico o terpolimeri acrilonitrile/alchil metacrilato/butadiene .
11. Polimeri derivati da alcooli insaturi ed allunine, o loro derivati acilici od acetalici come, ad esempio, polivinil alcool, polivinil acetato, polivinil stearato, polivinil benzoato, polivinil maleato, polivinil butirrale, poliallil ftalato o poliallil melammina; così come loro copolimeri con le olefine di cui al punto (1).
12. Omopolimeri e copolimeri di eteri a catena aperta oppure di eteri ciclici come, ad esempio, glicoli polialchilenici, polietilene ossido, polipropilene ossido, oppure copolimeri dei composti sopra descritti con bis-glicidil eteri.
13. Poliacetali come, ad esempio, poliossimetilene e quei poliossimetileni che contengono comonomeri, ad esempio, ossido di etilene; poliacetali modificati con poliuretani termoplastici, acrilati o MBS.
14. Ossidi e solfuri del polifenilene e loro miscele con polimeri stirenici o poliammidì.
15. Poliuretani derivati da polieteri, poliesteri o polibutadieni idrossil-terminati da un lato e poliisocianati alifatici od aromatici dall'altro, così come i loro precursori.
16. Poliammidi e copoliammidi derivate da diammine ed acidi dicarbossilici e/o da acidi amminocarbossilici o dai corrispondenti lattami come, ad esempio, poliammide 4, poliammide 6, poliammide 6/6, 6/10, 6/9, 6/12, 4/6, 12/12, poliammide 11, poliammide 12, poliammidi aromatiche ottenute a partire da m-xilene diammina ed acido adipico; poliammidi preparate da esametilenediammina ed acido isoftalico e/o tereftalico e con o senza un elastomero come agente modificante, ad esempio, poli-2,4,4-trimetilesametilene tereftalammide o poli-m-fenilene isoftalammide; ed anche copolimeri a blocchi delle suddette poliammidi con poliolefine, copolimeri olefinici, ionomeri od elastomeri legati chimicamente o graffati; o con polieteri come, ad esempio, polietilene glicole, polipropilene glicole o politetrametilene glicole; così come poliammidi o copoliammidi modificate con EPDM od ABS; e poliammidi condensate durante la lavorazione ("RIM polyamide system").
17. Poliuree, poliimmidi, poliammideimmidi, polieteriimmidi, poliesteriimmidi, poliidantoine, e polibenzoimidazoli .
18. Poliesteri derivati da acidi dicarbossilici e dioli e/o da acidi idrossicarbossilici o dai corrispondenti lattoni come, ad esempio, polietilene tereftalato, polibutilene tereftalato, poli-1,4-dimetilolcicloesano tereftalato, poliidrossibenzoati, così come copolieteri esteri a blocchi derivati da polieteri con gruppi idrossil-terminati; ed anche poliesteri modificati con policarbonati o MBS.
19. Policarbonati e poliesteri carbonati.
20. Polisolfoni, polieterisolfoni e polieterichetoni .
21. Polimeri reticolati derivati da aldeidi da una parte e da fenoli, urea e melammine dall’altra come, ad esempio, resine fenolo/formaldeide, resine urea/formaldeide e resine melammina/formaldeide. 22. Resine alchidiche essicate o non-essicate.
23. Resine a base di poliesteri insaturi derivate da copoliesteri di acidi dicarbossilici saturi ed insaturi con alcooli poliidrici e composti vinilici come agenti reticolanti, ed anche resine di cui sopra contenenti alogeni ed aventi una buona resistenza alla fiamma.
24. Resine acriliche reticolabili derivate da acrilati sostituiti come, ad esempio, epossi acrilati, uretani acrilati o poliesteri acrilati.
25. Resine alchidiche, resine a base di poliesteri o resine acrilate reticolate con resine melamminiche, resine a base di urea, resine a base di isocianati, resine a base di isocianurati, resine a base di poliisocianati o resine epossidiche.
26. Resine epossidiche reticolate derivate da composti glicidilici alifatici, cicloalifatici, eterociclici od aromatici quali, ad esempio, prodotti di eteri diglicidilici del bisfenolo A e del bisfenolo F, che vengono reticolati con gli agenti reticolanti usuali quali, ad esempio, anidridi od ammine, in presenza od in assenza di acceleranti.
27. Polimeri naturali come, ad esempio, cellulosa, gomma naturale, gelatina, e loro derivati chimicamente modificati per dare polimeri omologhi come, ad esempio, acetati, propionati e butirrati di cellulosa, oppure eteri di cellulosa come, ad esempio, metil-cellulosa; così come resine idrocarburiche ("rosins") e loro derivati.
28. Miscele dei polimeri sopra menzionati ("polyblends") come, ad esempio, PP/EPDM, poliammide/EPDM
29. Materiali organici naturali o sintetici che sono composti monomerici puri o miscele di detti composti quali, ad esempio, olii minerali, olii, grassi o cere animali o vegetali, olii, grassi o cere a base di esteri sintetici (ad esempio, ftalati, adipati, fosfati, trimellitati), come anche miscele di esteri sintetici con olii minerali in qualsivoglia rapporto in peso, in particolare quelli utilizzati nelle composizioni per filatura, così come le emulsioni acquose di detti materiali organici.
30. Emulsioni acquose di gomme naturali o sintetiche quali, ad esempio, lattice naturale o lattici a base di copolimeri stirene-butadiene carbossilati.
31. Gomme naturali o sintetiche quali, ad esempio, gomme acriliche, gomme nitriliche, gomme termoplastiche (ad esempio, SIS, SBS, ecc.), poliisoprene, polibutadiene, policloroprene, SBR, EPDM, sia prima che dopo vulcanizzazione.
I polimeri organici che possono essere stabilizzati con le miscele stabilizzanti liquide oggetto della presente invenzione sono, preferibilmente, polimeri naturali, semi-sintetici o sintetici scelti tra quelli sopra descritti. Più preferibilmente, le miscele stabilizzanti liquide oggetto della presente invenzione, sono utili nella stabilizzazione dei polimeri sopra riportati ai punti 30 e 31.
Costituiscono pertanto ulteriore oggetto della presente invenzione, le composizioni polimeriche contenenti un polimero organico ed una quantità efficace di una delle miscele liquide stabilizzanti oggetto della presente invenzione. Ulteriore oggetto della presente invenzione sono i manufatti ottenuti dalla lavorazione delle suddette composizioni polimeriche .
Le miscele stabilizzanti liquide oggetto della presente invenzione vengono aggiunte ai polimeri organici da stabilizzare in quantità compresa tra lo 0,01% ed il 2,5% sul peso del polimero organico da stabilizzare, preferibilmente tra lo 0,03% ed il 2%, ad esempio, tra lo 0,1% e lo 1%.
Le miscele stabilizzanti liquide oggetto della presente invenzione possono eventualmente contenere altri stabilizzanti (co-stabilizzanti) .
Stabilizzanti per polimeri organici utili allo scopo sono scelti tra i seguenti gruppi:
1. Antiossidanti
1.1 Monofenoli alchilati come, ad esempio: 2,6-dit-butil-4-metilfenolo; 2-t-butil-4, 6-dimetilf enolo; 2,6-di-t-butil-4-etilfenolo; 2,6-di-t-butil-4-n-butilfenolo; 2, 6-di-t-butil-4-isobutilfenolo; 2,6-diciclopentil-4-metilfenolo; 2-(α-metilcicloesil)-4.6-dimetilfenolo; 2,6-diottadecil-4-metilfenolo; 2.4.6-tricicloesilfenolo; 2,6-di-t-butil-4-metossimetilfenolo; nonilfenoli a catena alchilica lineare o ramificata quali, ad esempio, 2,6-di-nonil-4-metilfenolo; 2,4-dimetil-6-(1'-metilundec-1'-il)fenolo; 2,4-dimetil-6-(11-metileptadec-1'-il)fenolo; 2,4-dimetil-6- (1'-metiltridec-1'-il)fenolo; e loro miscele .
1.2 Alchiltiometilfenoli come, ad esempio: 2,4-diottiltiometil-6-t-butilfenolo; 2,4-diottiltiometil-6-metilfenolo; 2,4-diottiltiometil-6-etilfenolo; 2,6-didodeciltiometil-4-nonilfenolo.
1.3 Idrochinoni ed idrochinoni alchilati come, ad esempio: 2,6-di-t-butil-4-metossifenolo; 2,5-di-tbutilidrochinone; 2,5-di-t-amilidrochinone; 2,6-difenil-4-ottadecilossifenolo; 2,6-di-t-butilidrochinone; 2,5-di-t-butil-4-idrossianisolo; 3,5-di-t-butil-4-idrossianisolo; 3,5-di-t-butil-4-idrossifenil stearato; bis (3,5-di-t-butil-4-idrossifenil)adipato.
1.4 Tocoferoli come, ad esempio: α-tocoferolo, βtocoferolo, γ-tocoferolo, δ-tocoferolo e loro miscele (Vitamina E).
1.5 Eteri tiodifenilici idrossilati come, ad esempio: 2,2 '-tiobis- (6-t-butil-4-metilf enolo) ; 2,2'-tiobis- (4-ottilfenolo) ; 4,4'-tiobis- (6-t-butil-3-met ilfenolo) ; 4,4' -tiobis- (6-t-butil-2-metilf enolo ); 4,4 '-tiobis- (3,6-di-s-amilfenolo) ; 4,4'-bis-(2,6-dimetil-4-idrossifenil )disolfuro.
1.6 Alchiliden-bisfenoli come, ad esempio: 2,2'-metilenebis- (6-t-butil-4-metilfenolo) ; 2,2'-metilenebis- (6-t-butil-4-etilf enolo); 2,2'-metilenebis [4-metil-6- (α-metilcicloesil) fenolo] ; 2,2' -metilenebis (4-metil-6-cicloesilfenolo) ; 2,2'-metilenebis (6-nonil-4-metilfenolo) ; 2,2'-metilenebis (4,6-di-t-butilfenolo) ; 2,2 '-etilidenebis (4,6-di-t-butilfenolo) ; 2,2' -etilidenebis (6-t-butil-4-isobutilfenolo) ; 2,2'-metilenebis [6-(a-metilbenzil )-4-nonilfenolo] ; 2,2'-metilenebis [6-(a,a-dimetilbenzil) -4-nonil fenolo]; 4,4'-metilenebis (2,6-di-t-butilf enolo) ; 4,4' -metilenebis (6-t-butil-2-metilfenolo) ; 1,1-bis-(5-t-butil-4-idrossi-2-metilfenil) butano; 2,6-bis-(3-t-butil-5-metil — 2-idrossibenzil)-4-metili enolo; 1,1, 3-tris- (5-t-butil— 4-idrossì-2-metìlfenil) butano; 1,1-bis (5-t-butil-4-idrossi-2-metilfenil) -3-ndodecilmercaptobutano; etilenglicole bis[3,3-bis-(3'-t-butil-4 '-idrossifenil )butirrato] ; bis (3-t-butil-4-idrossi-5-metilfenil) diciclopentadiene; bis-[2- (3'-t-butil-2 '-idrossi-5 '-metilbenzil )--6--t-butil-4-metilfenil]tereftalato; 1,1-bis(3,5-dimetil-2-idrossifenil )butano; 2,2-bis{3,5-di-t-butil— 4--idrossifenil)propano; 2,2-bis(5-t-butil-4-idrossi-2-metilfenil) -4-n-dodecilmercaptobutano; 1,1,5,5-tetra (5-t-butil-4-idrossi-2-metilfenil)pentano.
1.7 Composti benzilici contenenti 0, N o S come, ad esempio: 3,5,3',5'-tetra-t-butil-4,4'-diidrossidibenziletere; ottadecil-4-idrossi-3,5-dimetilbenzilmercaptoacetato; tridecil-4-idrossi-3,5-di-t-butilbenzilmercaptoacetato; tris(3,5-di-t-butil-4-idrossibenzil)ammina; bis(4-t-butil-3-idrossi-2,6-dimetilbenzil)ditiotereftalato; bis(3,5-di-t-butil-4-idrossibenzil)solfuro; isoottil-3,5-di-t-butil-4-idrossibenzilmercaptoacetato .
1.8 Maionati idrossibenzilati come, ad esempio: diottadecil-2,2-bis (3,5-di-t-butìl-2-ìdrossibenzil)-maionato; diottadecil-2-(3-t-butil-4-idrossi-5-metilbenzil)maionato; didodecilmercaptoetil-2,2-bis-(3,5--di— t-butil-4-idrossibenzil)malonato; bis[4-(1,1,3,3-tetrametilbutil)fenil]--2,2— bis(3,5-di-tbuti1-4-idrossibenzil)maionato.
1.9 Composti idrossibenzilici aromatici come, ad esempio: 1,3,5-tris(3,5-di— t-butil— 4— idrossibenzil)-2,4,6-trimetilbenzene; 1,4— bis--(3,5-di-t-butilidrossibenzil)-2,3,5,6-tetrametilbenzene; 2,4,6tris (3,5-di-t-butil-4-idrossibenzil) fenolo.
1.10 Composti triazinici come, ad esempio: 2,4-bis (ottilmercapto) -6- (3,5-di-t-butil-4-idrossiani — lino) -1,3,5-triazina; 2-ottilmercapto-4 ,6-bis (3,5-di-t-butil-4-idrossianilino) -1,3, 5-triazina; 2-ottilmercapto-4 ,6-bis {3,5-di-t-butil-4-idrossifenos--si) -1,3,5-triazina; 2,4,6-tris- {3,5-di-t-butil — 4— idrossif enossi) -1,2,3-triazina; 1,3,5-tris (3,5-dit-butil-4-idrossibenzil) isocianurato; 1, 3,5-tris (4-t-butil-3-idrossi--2, 6— dimetilbenzil) isocianurato; 2, 4,6-tris- (3,5-di-t-butil-4-idrossifeniletil) -1,-3, 5-triazina; 1,3, 5-tris(3,5-di-t-butil-4-idrossifenilpropionil) esaidro-1, 3,5-triazina; 1,3,5-tris-(3,5-dicicloesil-4-idrossibenzil) isocianurato.
1.11 Benzilfosfonati come, ad esempio: dimetil-2,5-di-t-butil-4-idrossibenzilfosfonato; dietil-3, 5-dit-butil-4-idrossibenzilfosfonato; diottadecil-3, 5-di-t-butil-4-idrossibenzilf osfonato; diottadecil-5-t-butil-4-idrossi-3-metilbenzilfosfonato; sali di calcio dell'estere monoetilico dell'acido 3,5-di-tbutil -4-idrossibenz ilfos fonico.
1.12 Acilamminofenoli come, ad esempio: 4-idrossilauranilide; 4-idrossistearanilide; ottil-N- (3,5-di-t-butil-4 -idrossif enil) carbammato .
1.13 Esteri dell'acido β-(3,5-di-t-butil-4-idrossifenil)propionico con alcooli monoidrici o poliidrici come, ad esempio: metanolo, etanolo, n-ottanolo, i-ottanolo, ottadecanolo, 1,6-esandiolo, 1,9-nonandiolo, glicole etilenico, 1,2-propandiolo, glicole neopentilico, glicole tiodietilenico, glicole dietilenico, glicole trietilenico, pentaeritritolo, tris(idrossietil) isocianurato, Ν,Ν'-bis-(idrossietil)ossalammide, 3-tioundecanolo, 3-tiopentadecanolo, trimetilesandiolo, trimetilolpropano, 4-idrossimetil-l-fosfo--2,6,7— triossabiciclo--[2.2.2]ottano.
1.14 Esteri dell'acido β-(5-t-butil-4-idrossi-3-metilfenil)propionico con alcooli monoidrici o poliidrici come, ad esempio: metanolo, etanolo, n-ottanolo, i-ottanolo, ottadecanolo, 1,6-esandiolo, 1,9-nonandiolo, glicole etilenico, 1,2-propandiolo, glicole neopentilico, glicole tiodietilenico, glicole dietilenico, glicole trietilenico, pentaeritritolo, tris(idrossietil) isocianurato, N,N'-bis-(idrossietil)ossalammide, 3-tioundecanolo, 3-tiopentadecanolo, trimetilesandiolo, trimetilolpropano, 4-idrossimetil-l-fosfo--2,6,7— triossabiciclo--[2.2.2]ottano.
1.15 Esteri dell'acido β-(3,5-dicicloesil-4-idrossifenil)propionico con alcooli monoidrici o poliidrici come, ad esempio: metanolo, etanolo, n-ottanolo, i-ottanolo, ottadecanolo, 1,6-esandiolo, 1,9-nonandiolo, glicole etilenico, 1,2-propandiolo, glicole neopentilico, glicole tiodietilenico, glicole dietilenico, glicole trietilenico, pentaeritritolo, tris(idrossietil) isocianurato, N,N'-bis-(idrossietil)ossalammide, 3-tioundecanolo, 3-tiopentadecanolo, trimetilesandiolo, trimetilolpropano, 4-idrossimetil-l-fosfo— 2,6,7--triossabiciclo— [2.2.2]ottano.
1.16 Esteri dell'acido 3,5-di-t-butil-4-idrossifenil)acetico con alcooli monoidrici o poliidrici come, ad esempio: metanolo, etanolo, n-ottanolo, iottanolo, ottadecanolo, 1,6-esandiolo, 1,9-nonandiolo, glicole etilenico, 1,2-propandiolo, glicole neopentilico, glicole tiodietilenico, glicole dietilenico, glicole trietilenico, pentaeritritolo, tris (idrossietil] isocianurato, N,N'-bis(idrossietil)ossalammide, 3-tioundecanolo, 3-tiopentadecanolo, trimetilesandiolo, trimetilolpropano, 4-idrossimetil--l--fosfo-2 ,6,7-triossabiciclo[2.2.2]— ottano.
1.17_ Ammidi_ dell1acido_ β-(3,5-di-t-butil-4-idrossifenil)propionico come, ad esempio: Ν,Ν'-bis(3,5-di-t-butil-4-idrossifenilpropionil)esametilenediammide ; N,N'-bis{3,5-di-t-butil— 4--idrossifenilpropionil)trimetilenediammide; N,N'-bis(3,5— di-t-butil-4-idrossifenilpropionil) idrazide; N,N'-bis [2-{3-[3,5-di-t-butil-4-idrossifenil]propionil--ossi)etil]ossammide (Naugard® XL-1 della Uniroyal).
1.18 Acido ascorbico (vitamina C).
1.19 Antiossidanti amminici come, ad esempio, Ν,Ν'-di-isopropil-p-fenilenediammina; Ν,Ν'-di-s-butil-pfenilenediammina; Ν,Ν'-bis(1,4-dimetilpentil)-p-fenilenediammina; N,N'-bis(l-etil-3-metilpentil)-pfenilenediammina; N,N'-bis(1-metileptil)-p-fenilenediammina; N,N'-dicicloesil-p-fenilenediammina; N,N'-difenil-p-fenilenediammina; N,N'-bis(2-naftil)-p-fenilenediammina; N-isopropil-N'-fenil-pfenilenediammina; N-(1,3-dimetilbutil)-N'-fenil-pfenilenediammina; N-(1-metileptil)-N'-fenil-p-fenilenediammina; N-cicloesil-N' -fenil-p-fenilenediammina; 4-(p-toluenesulfonammido)difenileneammina; N,N'-di-metil--N,N'--di-s-butil-p-fenilenediammina ; difenilammina; N-allildifenilammina; 4-isopropossidifenilammina; N-fenil-l-naftilammina; N-(4-t-ottilfenil)-l-naftilammina; N-fenil-2-naftilammina; difenilammina ottilata quale, ad esempio, p,p'-dit-ottildifenilammina; 4-n-butilamminofenolo; 4-butirrilamminofenolo; 4-nonanoilamminofenolo; 4-dodecanoilamminof enolo; 4-ottadecanoilamminofenolo; bis- (4-metossifenil)ammina; 2, 6-di-t-butil-4-dimetilamminometilfenolo; 2,4'-diamminodifenilmetano; 4,4' -diamminodifenilmetano; N, N,N',N'-tetrametil-4,4' -diamminodifenilmetano; 1, 2-bis[(2-metilfenil) -ammino] etano; 1,2-bis (fenilammino) propano; (o-tolil) biguanide; bis [4-(1',3' -dimetilbutil) fenil] -ammina; N-f enil-l-naftilammina t-ottilata; miscela di t-butil/t-ottildifenilammine mono- e dialchilate; miscela di nonildifenilammine mono- e dialchilate; miscela di dodecildifenilammine mono- e dialchilate; miscela di isopropil/isoesildifenilammine mono- e dialchilate; miscela di t-butil-di-fenilammine mono- e dialchilate; 2,3-diidro-3, 3-dimetil-4H-1, 4-benzotiazina; fenotiazina; miscela di tbutil/t-ottilfenotiazine mono- e dialchilate; miscela di t-ottil-fenotiazine mono- e dialchilate; N-allil-f enotiazina; N, N,N',N'-tet rafenil-1 ,4-diamminobut-2-ene; N,N-bis (2,2,6,6-tetrametil-piperid-4-il-esametilenediammina; bis (2,2,6,6-tetrametilpiperidin-4-il) sebacato; 2,2,6,6-tetrametilpiperidin-4-one; 2,2,6, 6-tetrametilpiperidin-4-olo .
2. Stabilizzanti ai raggi ultravioletti ed alla luce .
2.1 Derivati di 2- (21-idrossifenil) benzotriazoli come, ad esempio: 2-(21-idrossi-5'-metilfenil)benzotriazolo; 2-(3',5'-di-t-butil-2'-idrossifenil)-benzotriazolo; 2-(51-t-butil-2'-idrossifenil)benzotriazolo; 2-[2'-idrossi-5'-(1,1,3,3-tetrametilbutil)fenil]benzotriazolo; 2-(3',5'— di-t-butil— 2'— idrossifenil)-5-clorobenzotriazolo; 2-(3'-t-butil-2'-idrossi-5 '-metilfenil)-5-clorobenzotriazolo; 2-(3'-s-butil-5'-t-butil-2'-idrossifenil)benzotriazolo; 2- (2'-idrossi-41-ottilossifenil)benzotriazo--lo; 2-(3',5'-di-t-amil-2'-idrossifenil)benzotriazolo; 2-[3',5'-bis(a,α-dimetilbenzil)-2'-idrossifenil]benzotriazolo; 2-[31— t— butil— 2'--idrossi-51-(2-ottilossicarboniletil)fenil)-5-cloro-benzotria— zolo; 2-[3'-t-butil-5'-(2-(2-etilesilossi)carboni1-etil)-2 '-idrossifenil]-5-clorobenzotriazolo; 2-[31-t-butil--2 idrossi--5 1— (2-metossicarboniletil)fenil]-5-clorobenzotriazolo; 2-[3'-t-butil-2'-idrossi-5'- (2-metossicarboniletil)fenil]benzotriazolo; 2-[3'-t-butil-2 ’-idrossi— 5'--(2-ottilossicarboniletil)fenil]benzotriazolo; 2-[3'-t-butil-5'-(2-(2-etilesilossi)carboniletil )— 2'--idrossifenil)benzotriazolo; 2- (31-dodecil-2'-idrossi-5'-metilfenil)-benzotriazolo; 2-[3'-t-butil-2'-idrossi-5'-(2-isoottilossicarboniletil)fenil]benzotriazolo; 2,2'-metilenebis- [4-(1,1,3,3-tetrametilbutil)-6-benzotriazol-2-il-fenolo] ; prodotto di transesterificazione del 2- [3'-t-butil-5 '-(2-metossicarboniletil) -2 '-idrossif enil] -2H-benzotriazolo con il polietilene glicole 300;
- in cui R = 3'— t— butil-4'-idrossi-5 ’-2H-benzotriazol-2-il-fenil; 2-[2r-idrossi-3' - (a,a-dimetilbenzil)— 5'— {1,1»3,3-tetrametilbutil) fenil] benzotriazolo; 2-[2r-idrossi-3' -(1,1,-3,3-tetrametilbutil) -5'-(a,α-dimetilbenzil) fenil]--benzotriazolo .
2.2 Benzotriazoli derivati dalla idantoina come quelli descritti, ad esempio, nelle domande di brevetto EP 867,435, WO 99/23093 e WO 99/37638.
2.3 Derivati di 2-idrossibenzof enoni come, ad esempio: 4-idrossi-; 4-metossi-; 4-ottilossi; 4-decilossi-; 4-dodecilossi- ; 4-benzilossi-; 4,2’,4'-triidrossi- ; 2'-idrossi-4,4'-dime tossi.
2.4 Esteri di acidi benzoici, opzionalmente sostituiti, come, ad esempio: fenil salicilato, 4-tbutilfenil salicilato, ottilfenil salicilato, benzoli resorcinolo, bis(4-t-butilbenzoil) resorcinolo, dibenzoil resorcinolo, 2,4-di-t-butilfenil-3, 5-dit-butil-4-idrossibenzoato, esadecil-3, 5-di-t-butil-4--idrossibenzoato, ottadecil — 3,5— di— t--butil-4-idrossibenzoato, 2-metil— 4,6— di-t-butilfenil-3,5di-t-butil-4-idrossibenzoato .
2 .5 Acrilati come, ad esempio, etil od iso-ottil aciano-p, β-difenilacrilato; metil a-carbometossicinnamato, metil o butil a-ciano-p-metil-p-metossicinnamato, metil a-carbometossi-p-metossicinnamato, N- (p-carbometossi-p-cianovinil) -2-metilindolina . 2.6 Composti del nichel come, ad esempio, Nicomplessi del 2,2 '-tio-bis- [4-(1,1,3,3-tetrametilbutil) fenolo] , ad esempio complessi 1:1 o 1:2, con o senza leganti addizionali come n-butilammina, trietanolammina o N-cicloesildietanolammina, nichel dibutilditiocarbammato, sali di nichel di esteri monoalchilici dell'acido 4-idrossi-3 ,5-di-t-butilbenzilfosfonico, come esteri metilici o etilici, complessi del nichel con chetossime come 2-idrossi-4-metilfenil undecil chetossima, complessi del nichel di l-fenil-4-lauroil-5-idrossipirazolo con o senza leganti addizionali.
2.7 Ammine stericamente impedite e loro N-alcossi derivati come, ad esempio: poli-metilpropil-3-ossi-[4- (2,2,6,6-tetrametil) piperidinil] silossano, polimetilpropil-3-ossi- [4- (1,2,2,6,6-pentamet il) piperidinil] silossano, bis- (2,2,6,6-tetrametil-4— piperidinil) sebacato; bis- (2,2,6,6-tetrametil-4-piperidinil) succinato; bis (1,2,2,6,6-pentametil-4-piperi-dinil)sebacato; bis(l-ottilossi-2,2,6,6—tetrametil-4-piperidinil)sebacato; bis(1,2,2,6,6-pentametil-4-piperidil)-n-butil-3,5-di-t-butil-4-idrossibenzil — maionato; prodotto di condensazione tra la l-(2-idrossietil)-2,2,6, 6-tetrametil-4-idrossipiperidina e l'acido succinico; prodotto di condensazione, lineare o ciclico, tra la Ν,Ν'-bis(2,2,6,6-tetrametil-4-piperidil)esametilenediammina e la 4-tottilammino-2 ,6-dicloro-l,3,5-s-triazina; tris-(2,2,6,6-tetrametil-4-piperidil)nitrilotriacetato; tetrakis (2,2,6,6-tetrametil-4-piperidil)— 1,2,3,4— butanotetracarbossilato; 1,1'— (1,2— etanodiil)bis-(3,3,5,5-tetrametilpiperazinone; 4-benzoil-2,2,6,6-tetrametilpiperidina; 4-stearilossi-2,2,6,6-tetrametilpiperidina; bis(1,2,2,6,6— pentametilpiperi--dil)-2-n-butil-2- (2-idrossi-3,5-di-t-butilbenzil)— maionato; 3-n-ottil-7,7,9,9-tetrametil-l,3,8-triazaspiro [4.5]decan-2,4-dione; bis(l--ottilossi--2.2.6.6-tetrametilpiperidil)sebacato; bis-(l-ottilossi-2,2,6,6-tetrametilpiperidil) succinato; prodotto di condensazione, lineare o ciclico, tra la N,N1-bis (2,2,6,6-tetrametil-4-piperidil)esametile--nediammina e la 4-morfolino-2,6-dicloro-l,3,5-triazina; prodotto di condensazione tra la 2-cloro-4.6-di- (4-n-butilammino--2,2,6,6--tetrametilpiperidii) -1,3,5-triazina e 1'1,2-bis(3-amminopropilammino) etano; prodotto di condensazione tra la 2-cloro-4 ,6-di- (4-n-butilammino-l, 2,2,6, 6-pentametilpiperidil) -1,3,5-triazina e 1'1,2-bis(3-amminopropilammino) etano; 8-acetil-3-dodecil-7 ,7,9,9-tetrametil-1,3, 8-triazaspiro [4 .5]decano-2, 4-dione; 3-dodecil-1- (2,2,6,6-tetrametil-4-piperidil) pirrolidin-2 ,5-dione; 3-dodecil-l- (1,2,2,6, 6-pentametil-4-piperidil) pirrolidin-2, 5-dione; miscela di 4-esadecilossi- e 4-stearilossi-2, 2, 6,6-tetrametilpiperidina; prodotto di condensazione tra l'N,N'-bis-(2,2,6,6-tetrametil-4-piperidil) esametilenediammi — na e la 4-cicloesilammino-2 ,6-dicloro-l ,3,5-triazina; prodotto di condensazione tra l'l,2-bis(3-amminopropil animino)etano e la 2,4,6-tricloro-l,3,5-triazina, così come la 4-butilammino-2 ,2,6,6-tetrametilpiperidina (CAS Reg. No. [136504-96-6]; N- (2,2,6,6-tetrametil-4-piperidil) -n-dodecilsuccinimmide; N- (1,2,2,6,6-pentametil-4-piperidil) -n-dodecilsuccinimmide; 2-undecil-7, 7,9,9-tetrametil-lossa-3, 8-diaza-4-ossospiro [4,5]decano; prodotto di reazione tra il 7,7,9,9-tetrametil-2-cicloundecill-ossa-3, 8-diaza-4-ossospiro [4,5]decano e l'epicloridrina; 1, 1-bis(1,2, 2,6,6-pentametil-4-piperidilossicarbonil) --2--(4-metossii enil )etene; N,N'-bis— formi 1-N,N' -bis(2,2,6, 6-tetrametil-4 -piperidil )esametilenediammina; diestere dell'acido 4-metossimetilenemalonico con la 1, 2,2,6,6-pentametil-4-idrossipiperidina; prodotto di reazione del copolimero anidride maleica/a-olefina con la 2,2,6,6-tetrametil-4-amminopiperidina o con la 1,1,2,2,6-pentametil-4-amminopiperidina .
2.8 Ossammidi come, ad esempio: 4,4 ’-diottilossiossanilide; 2 ,2'-dietossiossanilide ; 2,2'-diottilossi-5, 5 '-di-t-butossanilide ; 2,2'-didodecilossi-5,5' -di-t-butilossanilide; 2-etossi-2 '-etilossanilide; N,N'-bis (3-dimetilamminopropil) ossammide; 2-etossi-5-t-butil-2 '-etilossanilide e sue miscele con 2-etossi-2 '-etil-5, 4'-di-t-butossanilide; e miscele di orto- e para-metossi ossanilidi disostituite e miscele di orto- e para-etossi ossanilidi disostituite .
2.9 2-(2-idrossifenil) -1,3, 5-triazine come, ad esempio: 2, 4,6-tris (2-idrossi--4--ottilossifenil) -1,3, 5-triazina; 2- (2-idrossi-4-ottilossifenil) -4, 6-bis (2,4-dimetilfenil) — 1,3,5--triazina; 2-(2,4-diidrossifenil) -4,6-bis (2,4-dimetilfenil) -1,3, 5-triazina; 2,4-bis- (2-idrossi-4-propilossifenil) -6-(2,4-dimetilfenil) -1, 3,5-triazina; 2- (2-idrossi-4-ottilossifenil) --4 ,6— bis(4-metilfenil) — 1,3,5-triazina; 2- (2-idrossi-4-dodecilossifenil) -4,6-bis (2,4-dime— tilfenil) -1, 3,5-triazina; 2- [2-idrossi-4- (2-idrossi--3 — butilossipropilossi )f enil]-4,6-bis {2,4-dimetilfenil) -1,3, 5-tria zina; 2- [2-idrossi-4- {2-idrossi-3-ottilossi-propilossi) fenil] -4,6-bis (2,4-dime--tilfenil) -1, 3,5-triazina; 2- (2-idrossi-4-tridecilossifenil) -4, 6-bis- (2,4-dimetilfenil) -1,3, 5-triazina; 2- [4-(dodecilossi/tridecilossi-2-idrossipropossi) -2-idrossifenil] -4 ,6-bis(2,4-dimetilf enil )-1,3,-5-triazina; 2-[2-idrossi-4- (2-idrossi-3-dodecilossipropossi) fenil]-4, 6-bis(2,4-dimetilfenil) -1,3,5--triazina; 2- (2-idrossi-4-esilossifenil) -4,6-difenil-1, 3,5-triazina; 2- (2-idrossi-4-metossifenil) -4, 6-difenil-l, 3,5-triazina; 2, 4,6-tris [2-idrossi— 4- (3-butossi-2-idrossipropossi) fenil]-1,3, 5-triazina; 2- (2-idrossifenil)-4-(4-metossifenil) -6-fenil-1,3, 5-triazina; 2- {2-idrossi-4- [3-(2-etilesil-l-ossi) -2-idrossipropilossi] fenil}-4, 6-bis(2,4-dimetilfenil) -1,3,5-triazina .
3. "Metal-deactivators" come, ad esempio: N,N'-difenilossalammide, N-salicilal-N 1-saliciloil-idrazina, N,N 1-bis (saliciloil)idra zina, N,N '-bis(3,5-dit-butil-4-idrossifenilpropionil) idrazina, 3-saliciloilammino-1, 2, 4-triazolo, bis (benzilidene )ossallil diidrazide, ossanilide, isoftaloil diidrazide, sebacoil bisfenilidrazide, N,N'-diacetiladipoil diidrazide, N,N '-bis(saliciloil)ossallil diidrazide, N,N'-bis (saliciloil)tiopropionil diidrazide.
4. Fosfiti e fosfoniti come, ad esempio: trifenil fosfito, difenil alchil fosfiti, fenil dialchil fosfiti, tris(nonilfenil)fosfito, trilauril fosfito, triottadecil fosfito, distearil pentaeritritol difosfito, tris(2,4-di-t-butilfenil)fosfito, diisodecil pentaeritritol difosfito, bis(2,4-di-t-butilfenil )pentaeritritol difosfito, bis(2,6-di-t-butil-4-metilfenil)pentaeritritol difosfito, diisodecilossipentaeritritol difosfito, bis(2,4-di-t-butil-6-metilfenil)pentaeritritol difosfito, bis[2,4,6-tris (t-butilfenil)]pentaeritritol difosfito, tristearil sorbitol trifosfito, tetrakis-(2,4-di-t-butilfenil)-4,4'-difenilenedifosfonito, 6-isoottilossi-2,4,8,10-tetra-t-butil-12H-dibenzo [d,g]-1,3,2-diossafosfocina, 6-fluoro-2,4,8,10-tetra-t-butil-12-metil-dibenzo [d,g]-1,3,2-diossafosfocina, bis-(2,4-di-t-butil-6-metilfenil)metiliosfito, bis(2,4-di-t-butil-6-metilfenil)etilfosfito; 2, 2' , 2' ' -nitrilo[trietil-tris (3,3',5,5'-tetra-t-butil-1,1'-bifenil-2, 2’ -diil)fosfito]; 2-etilesil-(3,3',5,5'-tetra-t-butil-1,1'-bifenil-2,2'-diil)fosfito.
5. Idrossilammine come, ad esempio: N,N-dibenzilidrossilammina; N,N-dietilidrossilammina; N,N-diottilidrossilammina ; N,N-dilaurilidrossilammina; N,N-dìtetradecilidrossilammina, N,N-diesadecilidrossilammina; N,N-diottadecilidrossilammina; N-esadecil-N-ottadecil idrossilammina; N-eptadecil-N-ottadecil idrossilammina; N,N-dialchilidrossilammine derivate dalle animine del sego idrogenate.
6. Nitroni come, ad esempio: N-benzil-a-fenilnitrone; N-etil-a-metil-nitrone; N-ottil-a-eptilnitrone; N-lauril-a-undecil-nitrone ; N-tetradecilα-tridecil-nitrone; N-esadecil-a-pentadecil-nitrone; N-ottadecil-a-eptadecil-nitrone ; N-esadecil-aeptadecil-nitrone; N-ottadecil-a-pentadecil-nitrone; N-eptadecil-a-eptadecil-nitrone; N-ottadecil-aesadecil-nitrone; nitroni derivati dalle animine del sego idrogenate.
7. Tiosinerqisti come, ad esempio: dilauril tìodipropionato; distearil tiodipropionato .
8. Agenti che sono in grado di distruggere i perossidi come, ad esempio, esteri dell'acido βtiodipropionico come lauril, stearil, miristil o tridecil esteri, mercaptobenzimidazolo o sale di zinco del 2-mercaptobenzimidazolo, zinco dibutilditiocarbammato, diottadecildisolfuro, pentaeritritol tetrakis (β-dodecilmercapto) propionato .
9. Stabilizzanti della poliammide come, ad esempio, sali di rame in combinazione con composti dello iodio e/o del fosforo, sali del manganese divalente .
10. Co-stabilizzanti basici come, ad esempio: melammina, polivinilpirrolidone, dicianodiaramide, triallil cianurato, derivati dell'urea, derivati dell 'idrazina, ammine, poliammidi, poliuretani, sali dei metalli alcalini e sali dei metalli alcalino-terrosi di acidi grassi ad elevato peso molecolare come, ad esempio, Ca-stearato, Zn-stearato, Mg-stearato, Mg-behenato, Na-ricinoleato, K-palmitato, antimonio-pirocatecolato, stagno-pirocatecolato, zinco-piracatecolato.
11. Agenti nucleanti come, ad esempio: sostanze inorganiche quali talco, ossidi metallici (ad esempio, diossido di titanio od ossido di magnesio), fosfati, carbonati o solfati (preferibilmente di metalli alcalino-terrosi); composti organici quali acidi mono- o policarbossilici e loro sali (ad esempio, acido 4-t-butilbenzoico, acido adipico, acido difenilacetico, succinato di sodio, benzoato di sodio); composti polimerici quali copolimeri ionici ("ionomers").
12. Cariche ed agenti rinforzanti come, ad esempio: carbonato di calcio, silicati, fibre di vetro, perline di vetro ("glass beads"), amianto, talco, caolino, mica, solfato di bario, ossidi ed idrossidi metallici, nero fumo, grafite, farina di legno e farine o fibre di altri prodotti naturali, fibre sintetiche .
13. Altri additivi come, ad esempio: plastificanti, pigmenti, lubrificanti, emulsionanti, additivi reologici, catalizzatori, agenti di scivolamento, brillantanti ottici, agenti antifiammma (ad esempio, bromurati, clorurati, fosforati e misti fosforo/alogeni) , agenti antistatici, agenti di espansione .
11. Benzofuranoni ed indolinoni come, ad esempio: 3- [4- (2-acetossietossi) fenil]-5, 7-di-t-butil-benzofuran-2-one; 5,7-di-t-butil-3- [4- (2-stearoilossietossi) fenil] benzofuran-2-one; 3,3'-bis [5,7-di-tbutil — 3— [4- (2-idrossietossi)fenil]benzofuran — 2— one] ; 5,7-di-t-butil-3- (4-etossifenil)benzofuran-2-one; 3- (4-acetossi-3 ,5-dimetilfenil) -5, 7-di-t-butil-benzofuran-2-one; 3-(3,5-dimetil-4-pivaloilossifenil) -5,7-di-t-butil-benzofuran-2-one; oppure quelli descritti nei brevetti USA No. 4,325,863, 4,338,244, 5,175,312, 5,216,052 e 5,252,643; nei brevetti tedeschi DE 4,316,611, 4,316,622 e 4,316,876; o nelle domande di brevetto europeo No.
589,839 e 591,102.
I suddetti stabilizzanti (co-stabilizzanti) possono essere eventualmente aggiunti ai polimeri organici da stabilizzare in quantità compresa tra lo 0,01% ed il 10% sul peso totale del polimero organico da stabilizzare.
L'incorporazione delle miscele stabilizzanti liquide oggetto della presente invenzione tal quali od eventualmente in presenza di altri stabilizzanti (co-stabilizzanti), nei polimeri organici da stabilizzare, può essere effettuata secondo i metodi noti nell'arte, ad esempio, prima o durante la lavorazione .
Le suddette miscele, eventualmente in presenza di altri stabilizzanti (co-stabilizzanti), possono essere aggiunte ai polimeri organici da stabilizzare, anche dopo o durante la polimerizzazione o prima della reticolazione.
La presente invenzione riguarda anche un metodo per stabilizzare i polimeri organici contro la degradazione causata dall'ossigeno, dal calore e/o dalla luce, che comprende l'aggiunta a detti polimeri organici delle miscele stabilizzanti oggetto della presente invenzione.
Allo scopo di meglio comprendere la presente invenzione e per mettere in pratica la stessa, vengono di seguito riportati alcuni esempi illustrativi ma non limitativi della presente invenzione.
ESEMPIO 1
200 g di Anox® BF della Great Lakes Chemical Corporation liquido, giallo paglierino, avente viscosità pari a 64 mPa x sec. a 50°C (misurata con viscosimetro Haake), vengono caricati in un reattore da 500 mi munito di agitatore e termometro e vengono scaldati a 120°C.
100 g di Lowinox® CPL della Great Lakes Chemical Corporation in gocce vengono aggiunti, in 15 minuti, mantenendo il tutto, .sotto agitazione, a 120°C. Dopo 30 minuti, la miscela risultante di colore ambrato, viene lasciata raffreddare a temperatura ambiente. La analisi gas cromatografica (GC) mostra che non è avvenuta nessuna reazione chimica tra i due composti.
La suddetta analisi gas cromatografica viene effettuata utilizzando un gas cromatografo Hewlett Packard 5980, serie II, operando alle seguenti condizioni:
colonna capillare in silice fusa T.A.P.-CB ("Triglyceride Analysis Phase") 50% fenil/50% metil-polìsilossano da 10 m dì lunghezza, 0,25 rara di diametro interno e 0,1 μιη di spessore del film (commercializzata dalla Crompack); programma temperatura forno: da 70°C a 350°C con incremento di 15°C/min.; isoterma finale 10 min .;
carrier gas: elio a 3,3 ml/min.;
sistema iniezione: "on column";
temperatura iniettore: 73°C;
temperatura "detector": 360°C;
volume iniettato: 1,0 μΐ;
concentrazione dei campioni: 1,0 mg/ml in toluene.
La viscosità della miscela, misurata con viscosimetro Haake, è pari a 384 mPa x sec. a 70°C.
ESEMPIO 2
Viene effettuata una prova di invecchiamento su provini di gomma SBR del tipo Europrene 1502 commercializzata dalla EniChem Elastomeri utilizzando la mescola riportata in Tabella 1.
TABELLA 1
tipo di silice;
polietilenglicole etossilato avente peso molecolare 4000;
stabilizzante utilizzato che è sotto riportato in Tabella 2.
TABELLA 2
*: prodotti commercializzati dalla Great Lakes Chemical Corporation.
Le mescole ottenute come sopra descritto, vengono vulcanizzate a 160°C per 20 minuti ottenendosi lastrine di gomma aventi dimensioni 200x200 mm e 2 mm di spessore.
Dalle suddette lastrine vengono ricavati dei provini standard DUMBBELL di 10 cm in accordo con la norma ASTM D412 che vengono sottoposti ad invecchiamento in stufa a 100°C. A tempi diversi: 96 ore, 144 ore, 240 ore e 288 ore, vengono prelevati i provini sui quali viene valutata la proprietà antiossidante dei diversi additivi misurando la variazione del carico di rottura ("tensile strength") e dell'allungamento a rottura ("elongation at break") : i valori ottenuti vengono riportati in Tabella 3 ed in Tabella 4 rispettivamente.
I dati sopra riportati dimostrano che la miscela stabilizzante liquida oggetto della presente invenzione (Prova No. 6) mantiene inalterato il potere antiossidante.
Claims (11)
- RIVENDICAZIONI 1.Miscele miscele stabilizzanti liquide per polimeri organici comprendenti: (a) un composto appartenente alla classe dei fenoli stericamente impediti liquido costituito da esteri o da miscele di esteri aventi formula generale (I):in cui: Ri ed R2, uguali o diversi tra loro, rappresentano un gruppo alchilicolineare o ramificato; R3 rappresenta un gruppo alchilicolineare o ramificato, oppure uno dei seguenti gruppi:in cui m ed n sono un numero intero compreso tra 0 e 11 estremi inclusi; ed m n è 10 o 11; e p è 12 o 13; (b) un composto appartenente alla classe dei fenoli sfericamente impediti solido avente formula (II):(I ) in cui n è un numero intero compreso tra 0 e 10 estremi inclusi.
- 2. Miscele stabilizzanti liquide secondo la rivendicazione 1, in cui, nella formula generale (I), i gruppi alchilici Ci-Cie, lineari o ramificati, sono: metile, etile, propile, isopropile, bufile, 2-butile, isobutile, t-butile, pentole, 2-pentile, esile, eptile, ottile, 2-etilesile, t-ottile, nonile, decile, undecile, dodecile, tridecile, tetradecile, pentadecile, esadecile, eptadecile, ottadecile.
- 3. Miscele stabilizzanti secondo la rivendicazione 1 o 2, in cui i composti appartenenti alla classe dei fenoli sfericamente impediti liquidi (a) sono quelli in cui Rx ed R2, uguali o diversi tra loro, sono: metile etile, isopropile, t-butile; ed R3 rappresenta uno dei seguenti gruppi :in cui m, n e p, hanno gli stessi significati sopra descritti.
- 4 . Procedimento per la preparazione delle suddette miscele stabilizzanti liquide comprende: (a') scaldare il composto appartenente alla classe dei fenoli sfericamente impediti liquido (a) a temperatura compresa tra 60°C e 180°C, sotto agitazione; (b') aggiungere, il composto appartenente alla classe dei fenoli sfericamente impediti solido (b), mantenendo la temperatura compresa tra 60°C e 180°C, e mantenere il tutto sotto agitazione, fino a completo scioglimento di detto composto (b), per un tempo compreso tra 5 minuti e 100 minuti, ottenendosi una miscela liquida.
- 5. Procedimento secondo la rivendicazione 4, in cui i rapporti in peso tra il composto appartenente alla classe dei fenoli sfericamente impediti liquido (a) ed il composto appartenente alla classe dei fenoli sfericamente impediti solido (b) sono compresi tra 90:10 e 30:70.
- 6. Composizioni polimeriche contenenti un polimero organico ed una quantità efficace di una delle miscele stabilizzanti di cui ad una qualsiasi delle rivendicazioni precedenti.
- 7. Composizioni polimeriche secondo la rivendicazione 6, in cui le miscele stabilizzanti vengono utilizzate in combinazione con altri stabilizzanti.
- 8. Composizioni polimeriche secondo la rivendicazione 6 o 7, in cui i polimeri organici sono scelti tra le emulsioni acquose di gomme naturali o sintetiche quali lattice naturale o lattici a base di copolimeri stirene-butadiene carbossilati.
- 9. Composizioni polimeriche secondo la rivendicazione 6 o 7, in cui i polimeri organici sono scelti tra gomme naturali o sintetiche quali, gomme acriliche, gomme nitriliche, gomme termoplastiche, poliisoprene, polibutadiene, policloroprene, SBR, EPDM, sia prima che dopo vulcanizzazione .
- 10. Manufatti ottenuti dalla lavorazione delle composizioni polimeriche di cui ad una qualsiasi delle rivendicazioni da 6 a 9.
- 11. Metodo per stabilizzare i polimeri organici contro la degradazione causata dall'ossigeno, dal calore e/o dalla luce, che comprende l'aggiunta a detti polimeri organici delle miscele stabilizzanti di cui ad una qualsiasi delle rivendicazioni da 1 a 5.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000MI000886A IT1318478B1 (it) | 2000-04-20 | 2000-04-20 | Miscele stabilizzanti liquide per polimeri organici. |
US10/257,400 US20030144395A1 (en) | 2000-04-20 | 2001-04-18 | Liquid stabilizing mixtures for organic polymers |
CA002406750A CA2406750C (en) | 2000-04-20 | 2001-04-18 | Liquid stabilizing mixtures for organic polymers |
DE60102227T DE60102227T2 (de) | 2000-04-20 | 2001-04-18 | Flüssige stabilisatorgemische für organische polymere |
EP01943259A EP1276802B1 (en) | 2000-04-20 | 2001-04-18 | Liquid stabilizing mixtures for organic polymers |
DE1276802T DE1276802T1 (de) | 2000-04-20 | 2001-04-18 | Flüssige stabilisatorgemische für organische polymere |
PCT/EP2001/004396 WO2001081458A1 (en) | 2000-04-20 | 2001-04-18 | Liquid stabilizing mixtures for organic polymers |
US11/175,048 US7560048B2 (en) | 2000-04-20 | 2005-07-06 | Liquid stabilizing mixtures for organic polymers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000MI000886A IT1318478B1 (it) | 2000-04-20 | 2000-04-20 | Miscele stabilizzanti liquide per polimeri organici. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI20000886A0 ITMI20000886A0 (it) | 2000-04-20 |
ITMI20000886A1 true ITMI20000886A1 (it) | 2001-10-20 |
IT1318478B1 IT1318478B1 (it) | 2003-08-25 |
Family
ID=11444899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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IT2000MI000886A IT1318478B1 (it) | 2000-04-20 | 2000-04-20 | Miscele stabilizzanti liquide per polimeri organici. |
Country Status (6)
Country | Link |
---|---|
US (2) | US20030144395A1 (it) |
EP (1) | EP1276802B1 (it) |
CA (1) | CA2406750C (it) |
DE (2) | DE60102227T2 (it) |
IT (1) | IT1318478B1 (it) |
WO (1) | WO2001081458A1 (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1318478B1 (it) * | 2000-04-20 | 2003-08-25 | Great Lakes Chemical Europ | Miscele stabilizzanti liquide per polimeri organici. |
JP2007505180A (ja) * | 2003-09-10 | 2007-03-08 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | 熱酸化に対するメチルメタクリレート−ブタジエン−スチレングラフトコポリマーの安定化 |
US20100036016A1 (en) * | 2003-09-10 | 2010-02-11 | Alex Wegmann | Stabilization of methylmethacrylate-butadiene-styrene graft copolymers against thermal oxidation |
BRPI0417261B1 (pt) * | 2003-12-04 | 2021-01-26 | Ciba Specialty Chemicals Holding Inc. | composição, uso e processo para estabilização de poliéter polióis, poliéster polióis e poliuretanas |
DE102004036965A1 (de) * | 2004-07-30 | 2006-02-16 | Basf Ag | Stabilisatorzusammensetzung aus flüssigen und festen UV-Absorbern |
US7976729B2 (en) * | 2008-01-02 | 2011-07-12 | Chemtura Corporation | Stabilized polymer compositions |
US8110532B2 (en) * | 2008-11-24 | 2012-02-07 | Chemtura Corporation | Antioxidant compositions |
MX2016009838A (es) * | 2014-02-03 | 2017-01-26 | Arlanxeo Deutschland Gmbh | Cauchos estabilizados. |
CN106103565B (zh) * | 2014-02-03 | 2019-09-20 | 水史贝瑞森有限公司 | 用于聚合物的抗氧化稳定剂 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3305522A (en) | 1963-06-21 | 1967-02-21 | Goodyear Tire & Rubber | Rubber antioxidant |
US4360486A (en) * | 1981-11-10 | 1982-11-23 | Mobil Oil Corporation | Process for introducing an additive material to polymeric foams |
US4822839A (en) * | 1987-11-25 | 1989-04-18 | Hercules Incorporated | Polyunsaturated hydrocarbon polymer-compatible antioxidant compositions |
IT1231769B (it) * | 1989-08-02 | 1991-12-21 | Himont Inc | Procedimento per la stabilizzazione di poliolefine e prodotti da esso ottenuti. |
GB9001367D0 (en) * | 1990-01-20 | 1990-03-21 | Bp Chem Int Ltd | Oxidatively stable polymers and processes for preparing said polymers |
IT1247144B (it) * | 1991-03-07 | 1994-12-12 | Enichem Sintesi | Composizioni stabilizzanti per polimeri organici |
CA2112146A1 (en) * | 1992-12-23 | 1994-06-24 | Nitya P. Khasat | Polydicyclopentadiene having improved stability and toughened with polymeric particles |
TW399079B (en) * | 1995-05-12 | 2000-07-21 | Ciba Sc Holding Ag | Polyether polyol and polyurethane compositions protected against oxidation and core scorching |
US5728759A (en) * | 1995-08-15 | 1998-03-17 | Pike; Charles O. | Waterbase pressure sensitive adhesives and methods of preparation |
DE19533610A1 (de) * | 1995-09-11 | 1997-03-13 | Basf Ag | Verfahren zur Herstellung von Polyurethan-Hart- oder Halbhartschaumstoffen und derartige Polyurethan-Schaumstoffe enthaltende Verbundelemente |
JP2000103906A (ja) * | 1998-09-29 | 2000-04-11 | Asahi Chem Ind Co Ltd | 共役ジエン系重合体組成物 |
JP3802999B2 (ja) | 1999-08-09 | 2006-08-02 | 信越化学工業株式会社 | 塩化ビニル系重合体の製造方法 |
IT1318423B1 (it) | 2000-03-24 | 2003-08-25 | Great Lakes Chemical Europ | Miscele stabilizzanti per polimeri organici. |
IT1318478B1 (it) | 2000-04-20 | 2003-08-25 | Great Lakes Chemical Europ | Miscele stabilizzanti liquide per polimeri organici. |
-
2000
- 2000-04-20 IT IT2000MI000886A patent/IT1318478B1/it active
-
2001
- 2001-04-18 CA CA002406750A patent/CA2406750C/en not_active Expired - Fee Related
- 2001-04-18 DE DE60102227T patent/DE60102227T2/de not_active Expired - Lifetime
- 2001-04-18 US US10/257,400 patent/US20030144395A1/en not_active Abandoned
- 2001-04-18 EP EP01943259A patent/EP1276802B1/en not_active Expired - Lifetime
- 2001-04-18 WO PCT/EP2001/004396 patent/WO2001081458A1/en active IP Right Grant
- 2001-04-18 DE DE1276802T patent/DE1276802T1/de active Pending
-
2005
- 2005-07-06 US US11/175,048 patent/US7560048B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE1276802T1 (de) | 2003-06-26 |
US7560048B2 (en) | 2009-07-14 |
EP1276802B1 (en) | 2004-03-03 |
EP1276802A1 (en) | 2003-01-22 |
ITMI20000886A0 (it) | 2000-04-20 |
IT1318478B1 (it) | 2003-08-25 |
US20030144395A1 (en) | 2003-07-31 |
WO2001081458A1 (en) | 2001-11-01 |
CA2406750A1 (en) | 2001-11-01 |
DE60102227D1 (de) | 2004-04-08 |
US20060089437A1 (en) | 2006-04-27 |
DE60102227T2 (de) | 2005-02-17 |
CA2406750C (en) | 2009-11-24 |
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