GB2376949A - Mixtures of UV absorbers in polyolefins - Google Patents
Mixtures of UV absorbers in polyolefins Download PDFInfo
- Publication number
- GB2376949A GB2376949A GB0207708A GB0207708A GB2376949A GB 2376949 A GB2376949 A GB 2376949A GB 0207708 A GB0207708 A GB 0207708A GB 0207708 A GB0207708 A GB 0207708A GB 2376949 A GB2376949 A GB 2376949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon atoms
- alkyl
- hydrogen
- substituted
- hydroxyl
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 66
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 43
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 25
- -1 polyethylene Polymers 0.000 claims abstract description 73
- FTWUXYZHDFCGSV-UHFFFAOYSA-N n,n'-diphenyloxamide Chemical compound C=1C=CC=CC=1NC(=O)C(=O)NC1=CC=CC=C1 FTWUXYZHDFCGSV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004743 Polypropylene Substances 0.000 claims abstract description 16
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 claims abstract description 13
- HTTGVORJOBRXRJ-UHFFFAOYSA-N 2-(triazin-4-yl)phenol Chemical compound OC1=CC=CC=C1C1=CC=NN=N1 HTTGVORJOBRXRJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- YHCGGLXPGFJNCO-UHFFFAOYSA-N 2-(2H-benzotriazol-4-yl)phenol Chemical compound OC1=CC=CC=C1C1=CC=CC2=C1N=NN2 YHCGGLXPGFJNCO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920001155 polypropylene Polymers 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 301
- 125000000217 alkyl group Chemical group 0.000 claims description 172
- 239000001257 hydrogen Substances 0.000 claims description 69
- 229910052739 hydrogen Inorganic materials 0.000 claims description 69
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 54
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 53
- 125000003545 alkoxy group Chemical group 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 33
- 125000003342 alkenyl group Chemical group 0.000 claims description 32
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 32
- 125000003884 phenylalkyl group Chemical group 0.000 claims description 31
- 125000002947 alkylene group Chemical group 0.000 claims description 29
- 230000006641 stabilisation Effects 0.000 claims description 26
- 238000011105 stabilization Methods 0.000 claims description 26
- 239000000460 chlorine Chemical group 0.000 claims description 22
- 229910052801 chlorine Inorganic materials 0.000 claims description 22
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical group [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 19
- 125000001424 substituent group Chemical group 0.000 claims description 18
- 229910052736 halogen Inorganic materials 0.000 claims description 16
- 150000002367 halogens Chemical class 0.000 claims description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 15
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 14
- 125000004450 alkenylene group Chemical group 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 9
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 8
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 7
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims description 7
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 7
- 125000004956 cyclohexylene group Chemical group 0.000 claims description 6
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 4
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 claims description 3
- 125000004955 1,4-cyclohexylene group Chemical group [H]C1([H])C([H])([H])C([H])([*:1])C([H])([H])C([H])([H])C1([H])[*:2] 0.000 claims description 3
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 claims description 3
- 125000004414 alkyl thio group Chemical group 0.000 claims description 3
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- GARHCDOTUULBOQ-PKNBQFBNSA-N 4-{(1e)-3-oxo-3-[(2-phenylethyl)amino]prop-1-en-1-yl}-1,2-phenylene diacetate Chemical compound C1=C(OC(C)=O)C(OC(=O)C)=CC=C1\C=C\C(=O)NCCC1=CC=CC=C1 GARHCDOTUULBOQ-PKNBQFBNSA-N 0.000 claims description 2
- 125000003282 alkyl amino group Chemical group 0.000 claims description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 2
- 125000004419 alkynylene group Chemical group 0.000 claims description 2
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 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
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 claims description 2
- NFBAXHOPROOJAW-UHFFFAOYSA-N phenindione Chemical class O=C1C2=CC=CC=C2C(=O)C1C1=CC=CC=C1 NFBAXHOPROOJAW-UHFFFAOYSA-N 0.000 claims description 2
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000004193 piperazinyl group Chemical group 0.000 claims description 2
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 claims description 2
- 125000004434 sulfur atom Chemical group 0.000 claims description 2
- 125000006839 xylylene group Chemical group 0.000 claims description 2
- HMYBQGXAGRYFPW-UHFFFAOYSA-N n'-(5-tert-butyl-2-ethoxyphenyl)-n-(4-tert-butyl-2-ethylphenyl)oxamide Chemical compound CCOC1=CC=C(C(C)(C)C)C=C1NC(=O)C(=O)NC1=CC=C(C(C)(C)C)C=C1CC HMYBQGXAGRYFPW-UHFFFAOYSA-N 0.000 description 37
- 150000003254 radicals Chemical class 0.000 description 29
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 26
- 229910052757 nitrogen Inorganic materials 0.000 description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 17
- 239000004611 light stabiliser Substances 0.000 description 17
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 16
- UWSMKYBKUPAEJQ-UHFFFAOYSA-N 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O UWSMKYBKUPAEJQ-UHFFFAOYSA-N 0.000 description 15
- LEVFXWNQQSSNAC-UHFFFAOYSA-N 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexoxyphenol Chemical compound OC1=CC(OCCCCCC)=CC=C1C1=NC(C=2C=CC=CC=2)=NC(C=2C=CC=CC=2)=N1 LEVFXWNQQSSNAC-UHFFFAOYSA-N 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 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
- 239000000654 additive Substances 0.000 description 11
- 229920001903 high density polyethylene Polymers 0.000 description 10
- 238000007906 compression Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 9
- 238000002835 absorbance Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000011888 foil Substances 0.000 description 8
- 239000004700 high-density polyethylene Substances 0.000 description 8
- 229920001684 low density polyethylene Polymers 0.000 description 8
- 239000000463 material 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
- 239000000843 powder Substances 0.000 description 8
- 238000005507 spraying Methods 0.000 description 8
- 230000000087 stabilizing effect Effects 0.000 description 8
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 7
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 6
- 239000012964 benzotriazole Substances 0.000 description 6
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 6
- 229940114926 stearate Drugs 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 5
- 239000004702 low-density polyethylene Substances 0.000 description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 5
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 4
- KXPXKNBDCUOENF-UHFFFAOYSA-N 2-(Octylthio)ethanol Chemical compound CCCCCCCCSCCO KXPXKNBDCUOENF-UHFFFAOYSA-N 0.000 description 4
- ZPIRWAHWDCHWLM-UHFFFAOYSA-N 2-dodecylsulfanylethanol Chemical compound CCCCCCCCCCCCSCCO ZPIRWAHWDCHWLM-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
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 4
- 239000007983 Tris buffer Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-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
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 4
- 239000011732 tocopherol Substances 0.000 description 4
- 229960001295 tocopherol Drugs 0.000 description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 4
- 229940113165 trimethylolpropane Drugs 0.000 description 4
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 3
- 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 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 235000006708 antioxidants Nutrition 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 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 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 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 description 3
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 3
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- 235000013772 propylene glycol Nutrition 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 2
- RMSGQZDGSZOJMU-UHFFFAOYSA-N 1-butyl-2-phenylbenzene Chemical group CCCCC1=CC=CC=C1C1=CC=CC=C1 RMSGQZDGSZOJMU-UHFFFAOYSA-N 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 2
- UCJDCGANFAKTKA-UHFFFAOYSA-N 2,4-dimethyl-1,3,5-triazine Chemical compound CC1=NC=NC(C)=N1 UCJDCGANFAKTKA-UHFFFAOYSA-N 0.000 description 2
- BVUXDWXKPROUDO-UHFFFAOYSA-N 2,6-di-tert-butyl-4-ethylphenol Chemical compound CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 BVUXDWXKPROUDO-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
- RXFCIXRFAJRBSG-UHFFFAOYSA-N 3,2,3-tetramine Chemical compound NCCCNCCNCCCN RXFCIXRFAJRBSG-UHFFFAOYSA-N 0.000 description 2
- FBIXXCXCZOZFCO-UHFFFAOYSA-N 3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione Chemical compound O=C1C(CCCCCCCCCCCC)CC(=O)N1C1CC(C)(C)NC(C)(C)C1 FBIXXCXCZOZFCO-UHFFFAOYSA-N 0.000 description 2
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- 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
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- 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
- 239000002253 acid Substances 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
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- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 229940035422 diphenylamine Drugs 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 229920001179 medium density polyethylene Polymers 0.000 description 2
- 239000004701 medium-density polyethylene Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- XRBCRPZXSCBRTK-UHFFFAOYSA-N phosphonous acid Chemical class OPO XRBCRPZXSCBRTK-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 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
- 229940074404 sodium succinate Drugs 0.000 description 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- NZNAAUDJKMURFU-UHFFFAOYSA-N tetrakis(2,2,6,6-tetramethylpiperidin-4-yl) butane-1,2,3,4-tetracarboxylate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CC(C(=O)OC1CC(C)(C)NC(C)(C)C1)C(C(=O)OC1CC(C)(C)NC(C)(C)C1)CC(=O)OC1CC(C)(C)NC(C)(C)C1 NZNAAUDJKMURFU-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- INNSFNJTGFCSRN-UHFFFAOYSA-N tridecyl 2-[(3,5-ditert-butyl-4-hydroxyphenyl)methylsulfanyl]acetate Chemical compound CCCCCCCCCCCCCOC(=O)CSCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 INNSFNJTGFCSRN-UHFFFAOYSA-N 0.000 description 1
- IVIIAEVMQHEPAY-UHFFFAOYSA-N tridodecyl phosphite Chemical compound CCCCCCCCCCCCOP(OCCCCCCCCCCCC)OCCCCCCCCCCCC IVIIAEVMQHEPAY-UHFFFAOYSA-N 0.000 description 1
- CNUJLMSKURPSHE-UHFFFAOYSA-N trioctadecyl phosphite Chemical compound CCCCCCCCCCCCCCCCCCOP(OCCCCCCCCCCCCCCCCCC)OCCCCCCCCCCCCCCCCCC CNUJLMSKURPSHE-UHFFFAOYSA-N 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 229920001866 very low density polyethylene Polymers 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
- C08K5/3475—Five-membered rings condensed with carbocyclic rings
-
- 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
- C08K5/07—Aldehydes; Ketones
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
Landscapes
- 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)
Abstract
A polyolefin composition comprises as UV absorber a mixture of <SL> <LI>a) at least one hydroxybenzophenone and at least one oxanilide; <LI>b) at least one 2-hydroxyphenylbenzotriazole and at least one oxanilide; <LI>c) at least one 2-hydroxyphenyltriazine and at least one oxanilide; <LI>d) at least one hydroxybenzophenone, at least one 2-hydroxyphenylbenzotriazole and at least one oxanilide; <LI>e) at least one hydroxybenzophenone, at least one oxanilide and at least one 2-hydroxyphenyltriazine; or <LI>f) at least one 2-hydroxyphenylbenzotriazole, at least one oxanilide and at least one 2-hydroxy phenyltriazine. </SL> Preferably, the polyolefin in polyethylene or polypropylene.
Description
<Desc/Clms Page number 1>
Svnerqistlc Mixtures of UV-Absorbers in Polvolefins The present invention relates to novel polyolefin compositions, which contain mixtures of different UV absorbers.
The effects of atmospheric oxygen, moisture and, in particular, UV light result in degradation of the polymer material. This manifests itself, for example, in the loss of mechanical strength, changes in shade and finally total breakdown of the polymer article. As is known, it is possible to retard such degradation processes in polyolefins by the use of suitable stabilizers, and there are numerous prior art documents in this field.
In the coatings field, EP-A-0453 396 discloses that mixtures of hydroxyphenyl-benzotriazole with hydroxybenzophenon or with hydroxyphenyl-s-triazine UV-absorbers lead to synergistic mixtures which prevent the coatings life time unexpectedly long from degradation.
Although there are prior art documents, such as FR 2619 814, which generically disclose the combined use of oxalamide UV absorbers, particularly in coatings, with benzophenone or benzotriazol UV absorbers, there is however no suggestion in the prior art for the instant combinations in polyolefins.
It has now been found that certain combinations of UV absorbers of different chemical structures are capable of substantially preventing the degradation of polyolefins.
The combinations of the present invention provide an unexpected synergistic stabilization effect for polyolefin articles. The effect is not predictable from the absorption spectra and has not been observed with other UV absorber combinations in polyolefins.
One aspect of the present invention is a polyolefin composition which comprises as UV absorber a mixture of a) at least one hydroxybenzophenone and at least one oxanilide ; b) at least one 2-hydroxyphenylbenzotriazole and at least one oxanilide ; c) at least one 2-hydroxyphenyltriazine and at least one oxanilide ; d) at least one hydroxybenzophenone, at least one 2-hydroxyphenylbenzotriazole and at least one oxanilide ;
<Desc/Clms Page number 2>
e) at least one hydroxybenzophenone, at least one oxanilide and at least one 2-hydroxyphenyl- triazine; or f) at least one 2-hydroxyphenylbenzotriazole, at least one oxanilide and at least one 2-hydroxy- phenyltriazine.
Suitable polyolefins are mentioned below.
1. Polymers of monoolefins and diolefins, for example polypropylene, polyisobutylene, po- lybut-1-ene, poly-4-methylpent-1-ene, polyisoprene or polybutadiene, as well as polymers of cycloolefins, for instance of cyclopenten or norbornene, polyethylene (which optionally can be crosslinked), for example high density polyethylene (HDPE), high density and high mole- cular weight polyethylene (HDPE-HMW), high density and ultrahigh molecular weight poly- ethylene (HDPE-UHMW), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), (VLDPE) and (ULDPE), metallocene polyethylen (m-PE) in particular m-LLDPE and metallocene poylpropylene (m-PP).
Polyolefins, I. e, the polymers of monoolefins exemplified in the preceding paragraph, prefe- rably polyethylene and polypropylene, can be prepared by different, and especially by the following, methods: a) radical polymerisation (normally under high pressure and at elevated temperature) b) catalytic polymerisation using a catalyst that normally contains one or more than one metal of groups IVb, Vb, Vlb or VIII of the Periodic Table. These metals usually have one or more than one ligand, typically oxides, halides, alcoholates, esters, ethers, amines, alkyls, alkenyls and/or aryls that may be either n-or o-coordinated These metal complexes may be in the free form or fixed on substrates, typically on activated magnesium chloride, titanium (lil) chloride, alumina or silicon oxide. These catalysts may be soluble or insoluble in the polymerisation medium. The catalysts can be used by themselves in the polymerisation or further activators may be used, typically metal alkyls, metal hydrides, metal alkyl halides, metal alkyl oxides or metal alkyloxanes, said metals being elements of groups la, Ila and/or Ilia of the Periodic
Table. The activators may be modified conveniently with further ester, ether, amine or silyl ether groups. These catalyst systems are usually termed Philip, Standard
<Desc/Clms Page number 3>
Oil Indiana, Ziegler (-Natta), TNZ (DuPont), metallocene or single site catalysts (SSC).
2. Mixtures of the polymers mentioned under 1), for example mixtures of polypropylene with polyisobutylene, polypropylene with polyethylene (for example PP/HDPE, PP/LDPE) and mixtures of different types of polyethylene (for example LDPE/HDPE), metallocene types with conventional types (for example m-PE/PE-LLD, m-PE/PE-LD, m-PP/conventional PP).
Preferably the polyolefin is polyethylene or polypropylene.
A particularly preferred UV-absorber mixture is at least one 2-hydroxyphenyltriazine and at least one oxanilide.
Preferred polyolefin compositions are wherein the hydroxybenzophenone is of formula I
the 2-hydroxyphenylbenzotriazole is of formula lIa, lib or lie
<Desc/Clms Page number 4>
the 2-hydroxyphenyltriazine is of formula III
and the oxanilide is of formula (IV)
0 0 H 11 11 H H ! N (IV) ; wherein N NO- (Y I (L) x
in the compounds of the formula (I) v is an integer from 1 to 3 and w IS 1 or 2 and the substituents Z independently of one another are hydrogen, halogen, hydroxyl or alkoxy having 1 to 12 carbon atoms; in the compounds of the formula (lIa), R1 is hydrogen, alkyl having 1 to 24 carbon atoms, phenylalkyl having 1 to 4 carbon atoms In the alkyl moiety, cycloalkyl having 5 to 8 carbon atoms or a radical of the formula
<Desc/Clms Page number 5>
R4 --C, H-M, in which Rs
R4 and Rs independently of one another are alkyl having in each case 1 to 5 carbon atoms, or R4, together with the radical CnHzn. m, forms a cycloalkyl radical having 5 to 12 carbon atoms, m IS 1 or 2, n is an integer from 2 to 20 and M is a radical of the formufa-COORg in which Re is hydrogen, alkyl having 1 to 12 carbon atoms, alkoxyalkyl having in each case 1 to 20 carbon atoms in the alkyl moiety and in the alkoxy moiety or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, R2 IS hydrogen, halogen, alkyl having 1 to 18 carbon atoms, and phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, and R3 is hydrogen, chlorine, alkyl or alkoxy having in each case 1 to 4 carbon atoms or-COORe in which R6 is as defined above, at least one of the radicals R, and R2 being other than hydrogen; in the compounds of the formula (lib) T is hydrogen or alkyl having 1 to 6 carbon atoms, T, is hydrogen, chlorine or alkyl or alkoxy having in each case 1 to 4 carbon atoms, n is 1 or 2 and, if n is 1,
/T4 T2 is chlorine or a radical of the formula-OT3 or-N and, Ts T5 if n is 2, Ts is a radical of the formula \ or -0-T9-O- in which T6 T6
tu is hydrogen, alkyl which has 1 to 18 carbon atoms and is unsubstituted or substituted by 1 to 3 hydroxyl groups or by-OCOTe, a) ky ! which has 3 to 18 carbon atoms, is interrupted once or several times by -0- or -NTs- and is unsubstituted or substituted by hydroxyl orOCOT6, cycloalkyl which has 5 to 12 carbon atoms and is unsubstituted or substituted by hydroxyl and/or alkyl having 1 to 4 carbon atoms, alkenyl which has 2 to 18 carbon atoms and is unsubstituted or substituted by hydroxyl, phenylalkyl having 1 to 4 carbon atoms in the
<Desc/Clms Page number 6>
0 alkyl moiety, or a radical of the formula -CH2CH (OH) - T 7 or/\ L---L'n---un,, H 2
T4 and Ts independently of one another are hydrogen, alkyl having 1 to 18 carbon atoms, alkyl which has 3 to 18 carbon atoms and is interrupted once or several times by-0-or -NT6-, cycloalkyl having 5 to 12 carbon atoms, phenyl, phenyl which is substituted by alkyl having 1 to 4 carbon atoms, alkenyl having 3 to 8 carbon atoms, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety or hydroxyalkyl having 2 to 4 carbon atoms, Tg is hydrogen, alkyl having 1 to 18 carbon atoms, cycloalkyl having 5 to 12 carbon atoms, alkenyl having 3 to 8 carbon atoms, phenyl, phenyl which is substituted by alkyl having 1 to 4 carbon atoms, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, T7 is hydrogen, alkyl having 1 to 18 carbon atoms, phenyl which is unsubstituted or substituted by hydroxyl, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, or- CHzOTs, Ta is alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 8 carbon atoms, cycloalkyl having 5 to 10 carbon atoms, phenyl, phenyl which is substituted by alkyl having 1 to 4 carbon atoms, or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, Tg is alkylene having 2 to 8 carbon atoms, alkenylene having 4 to 8 carbon atoms, alkynylene having 4 carbon atoms, cyclohexylene, alkylene which has 2 to 8 carbon atoms and is interrupted once or several times by-0-, or a radical of the formulaCH2CH (OH) CH2OT11OCH2CH (OH) CH2- or -CH2-C(CH2OH)2-CH2-, T10 is alkylene which has 2 to 20 carbon atoms and can be interrupted once or several times by-0-, or cyclohexylene, T11 is alkylene having 2 to 8 carbon atoms, alkylene which has 2 to 18 carbon atoms and IS Interrupted once or several times by-0-, 1, 3-cyclohexylene, 1, 4-cyclohexylene, 1,3phenylene or 1, 4-phenylene, or T10 and T6, together with the two nitrogen atoms, are a piperazine nng ; in the compounds of formula (IIc) R'2 is Ci-Ci2alkyl and k is a number from 1 to 4; in the compounds of the formula (III) u IS 1 or 2 and r is an integer from 1 to 3, the substituents Y1 independently of one another are hydrogen, hydroxyl, halogenomethyl, alkyl having 1 to
<Desc/Clms Page number 7>
12 carbon atoms, alkoxy having 1 to 18 carbon atoms, or halogen, if u is 1, Yz is alkyl having 1 to 18 carbon atoms, phenoxy which is unsubstituted or substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms, or halogen, or is substituted by alkyl or alkoxy having in each case 1 to 18 carbon atoms or halogen, alkyl which has 1 to 12 carbon atoms and is substituted by -COOH, -COOY8, -CONH2, -CONHY9, -CONY9Y10, -NH2, -NHY9, - NYgYio,-NHCOYn,-CN and/or-OCOYn, alkyi which has 4 to 20 carbon atoms, is interrupted by one or more oxygen atoms and is unsubstituted or substituted by hydroxyl or alkoxy having 1 to 12 carbon atoms, alkenyl having 3 to 6 carbon atoms, glycidyl, cyclohexyl which is unsubstituted or substituted by hydroxyl, alkyl having 1 to 4 carbon atoms and/or- OCOY11, phenylalkyl which has 1 to 5 carbon atoms in the alkyl moiety and is unsubstituted or substituted by hydroxyl, chlorine and/or methyl, -COY12 or -SO2Y13, or, if u is 2, Y2 is alkylen having 2 to 16 carbon atoms, alkenylene having 4 to 12 carbon atoms,
xylylen, alkylen which has 3 to 20 carbon atoms, is interrupted by one or more -0- atoms and/or is substituted by hydroxyl, -CH2CH (OH) CHrO-YwOCH2CH (OH) CH2. -CO-YwCO-, CO-NH-Yi7-NH-CO-or- (CH2) m-C02-Yis-OCO- (CH2) m, in which m IS 1, 2 or 3, Ys is alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 18 carbon atoms, alkyl which has 3 to 20 carbon atoms, is interrupted by one or more oxygen or sulfur atoms or -NT6- and/or is substituted by hydroxyl, alkyl which has 1 to 4 carbon atoms and is substituted byP (O) (OY14)2, -NY9Y10 or -OCOY11 and/or hydroxyl, alkenyl having 3 to 18 carbon atoms, glycidyl, or phenylalkyl having 1 to 5 carbon atoms in the alkyl moiety, Yg and Y10 independently of one another are alkyl having 1 to 12 carbon atoms, alkoxyalkyl having 3 to 12 carbon atoms, dialkylaminoalkyl having 4 to 16 carbon atoms or cyclohexyl having 5 to 12 carbon atoms, or Yg and Y 10 together are alkylene, oxaalkylene or azaalkylene having in each case 3 to 9 carbon atoms, Y11 is alkyl having 1 to 18 carbon atoms, alkenyl having 2 to 18 carbon atoms or phenyl, Y12 is alkyl having 1 to 18 carbon atoms, alkenyl having 2 to 18 carbon atoms, phenyl, alkoxy having 1 to 12 carbon atoms, phenoxy, alkylamino having 1 to 12 carbon atoms or phenylamino, Yis is alkyl having 1 to 18 carbon atoms, phenyl or alkylphenyl having 1 to 8 carbon atoms in the alkyl radical, Y 14 is alkyl having 1 to 12 carbon atoms or phenyl,
<Desc/Clms Page number 8>
Y15 is alkylen having 2 to 10 carbon atoms, phenylen or a group-phenylene-M-phenylenein which M is-0-,-S-,-S02-,-CH2-or-C (CH3) 2-, Yi is alkylene, oxaalkylene or thiaalkylene having in each case 2 to 10 carbon atoms, phenylene or alkenylene having 2 to 6 carbon atoms, Y17 is alkylene having 2 to 10 carbon atoms, phenylene or alkylphenylene having 1 to 11 carbon atoms in the alkyl moiety, and Y, E, is alkylene having 2 to 10 carbon atoms or alkylene which has 4 to 20 carbon atoms and is interrupted once or several times by oxygen; in the compounds of the formula (IV) x is an integer from 1 to 3 and the substituents L independently of one another are hydrogen, alkyl, alkoxy or alkylthio having in each case 1 to 22 carbon atoms, phenoxy or phenylthio.
In the compounds of the formula (lia) Ri can be hydrogen or alkyl having 1 to 20 carbon atoms, such as methyl, ethyl, propyl, butyl, hexyl, octyl, nonyl, dodecyl, tetradecyl, hexadecyl, octadecyl, nonadecyl and eicosyl and also corresponding branched Isomers.
Furthermore, in addition to phenylalkyl having 1 to 4 carbon atoms In the alkyl moiety, for
example benzyl, Ri can also be cycloalkyl having 5 to 8 carbon atoms, for example
R4 cyclopentyl, cyclohexyl and cyclooctyl, or a radical of the formula -CnH--Mm in Rs
which R4 and Rs independently of one another are alkyl having in each case 1 to 5 carbon atoms, in particular methyl, or R4, together with the CnHzn-m radical, forms a cycloalkyl radical having 5 to 12 carbon atoms, for example cyclohexyl, cyclooctyl and cyclodecyl. M is a radical of the formula -COOR6 in which R6 is not only hydrogen but also alkyl having 1 to 12 carbon atoms or alkoxyalkyl having 1 to 20 carbon atoms in each of the alkyl and alkoxy moieties. Suitable alkyl radicals R6 are those enumerated for R1. Examples of suitable alkoxyalkyl groups are -C2H4OC2H5, -C2H4OC8H17 and -C4H8OC4H9. As phenylalkyl having 1 to 4 carbon atoms, R6 is, for example, benzyl, cumyl, a-methylbenzyl or phenylbutyl.
In addition to hydrogen and halogen, for example chlorine and bromine, Ruz cas also be alkyl having 1 to 18 carbon atoms. Examples of such alkyl radicals are indicated in the definitions of Ri. ruz can also be phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, for example benzyl, a-methylbenzyl and cumyl.
<Desc/Clms Page number 9>
Halogen as a substituent means in all cases fluorine, chlorine, bromine or iodine, preferably chlorine or bromine and more preferably chlorine.
At least one of the radicals R1 and R2 must be other than hydrogen.
In addition to hydrogen or chlorine, R3 is also alkyl or alkoxy having in each case 1 to 4 carbon atoms, for example methyl, butyl, methoxy and ethoxy, and also -COOR6.
In the compounds of the formula (lib) T is hydrogen or alkyl having 1 to 6 carbon atoms, such as methyl and butyl, T1 is not only hydrogen or chlorine, but also alkyl or alkoxy having in each case 1 to 4 carbon atoms, for example methyl, methoxy and butoxy, and, if n is 1, T2 is chlorine or a radical of the formula -OT3 or -NT4T5'T3 is here hydrogen or alkyl having 1 to 18 carbon atoms (cf. the definition of R1). These alkyl radicals can be substituted by 1 to 3 hydroxyl groups or by a radica !-OCOTg. Furthermore, T3 can be alkyl having 3 to 18 carbon atoms (cf. the definition of R1) which is interrupted once or several times by -0- or -NTs- and is unsubstituted or substituted by hydroxy ! or-OCOTe. Examptes of T3 as cycloalkyl are cyclopentyl, cyclohexyl or cyclooctyl. Tg can also be alkenyl having 2 to 18 carbon atoms.
Suitable alkenyl radicals are derived from the alkyl radicals enumerated in the definitions of R1. These alkenyl radicals can be substituted by hydroxyl. Examples of T3 as phenylalkyl are
benzyl, phenylethyl, cumyl, a-methylbenzyl or benzyl. T3 can also be a radical of the formula
0 - CH. CH (OH)-T. or 2
Like T3, T4 and Ts can, independently of one another, be not only hydrogen but also alkyl having 1 to 18 carbon atoms or alkyl which has 3 to 18 carbon atoms and is interrupted once or several times by -0- or -NTs-, T4 and Ts can also be cycloalkyl having 5 to 12 carbon atoms, for example cyclopentyl, cyclohexyl and cyclooctyl. Examples of T4 and T 5 as alkenyl groups can be found in the illustrations of T3. Examples of T4 and Ts as phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety are benzyl or phenylbutyl. Finally, these substituents can also be hydroxyalkyl having 1 to 3 carbon atoms.
<Desc/Clms Page number 10>
N-T-N"" If n is 2, Tz is a divalent radical of the formula \ or-O-Tg-O-.
/10 \
In addition to hydrogen, T6 (see above also) is alkyl, cycloalkyl, alkenyl, aryl or phenylalkyl ; examples of such radicals have already been given above.
In addition to hydrogen and the phenylalkyl radicals and long-chain alkyl radicals mentioned above, T7 can be phenyl or hydroxyphenyl and a) so-CHzOTg in which Ts can be one of the alkyl, alkenyl, cycloalkyl, aryl or phenylalkyl radicals enumerated.
The divalent radical T 9 can be alkylene having 2 to 8 carbon atoms, and such radicals can also be branched. This also applies to the alkenylene and alkynylene radicals Tg. As well as cyclohexylene, T9 can also be a radical of the formulaCH2CH (OH) CH2OT110CH2CH (OH) CH2- or -CH2-C(CH2OH)2-CH2-.
T10 is a divalent radical and, In addition to cyclohexylene, is also iso alkylene which has 2 to 20 carbon atoms and which can be interrupted once or several times by-0-. Suitable alkylene radicals are derived from the alkyl radicals mentioned in the definitions of R1.
T11 is also an alkylene radical. It contains 2 to 8 carbon atoms or, if it is interrupted once or several times by-0-, 4 to 10 carbon atoms. T11 is also 1, 3-cyclohexylene, 1, 4-cyclohexylene, 1, 3-phenylene or 1, 4-phenylene.
Together with the two nitrogen atoms, T6 and T10 can also be a piperazine ring.
Examples of alkyl, alkoxy, phenylalkyl, alkylene, alkenylene, alkoxyalkyl and cycloalkyl radicals and also alkylthio, oxaalkylene or azoalkylene radicals in the compounds of the formulae (2), (3) and (4) can be deduced from the above statements.
The UV absorbers of the formulae (I), (IIa), (IIb), (IIc), (III) and (IV) are known per se and are descnbed, together with their preparation, in, for example, EP-A-323 408, EP-A-57 160, US 5 736 597 (EP-A-434 608), US-A 4 619 956, DE-A 31 35 810 and GB-A 1 336 391.
Preferred meanings of substituents and Individual compounds can be deduced from the documents mentioned.
<Desc/Clms Page number 11>
The compounds can be incorporated into polyolefins by customary methods which are known per se. The preparation may be carried out in a manner known per se by mixing the said components and, if desired, further additives with the polymer using devices known per se, such as calenders, mixers, kneaders, extruders and the like. The additives may be added individually or in admixture with one another, It is also possible to use so-called master batches.
In certain cases it can be advantageous to use even a mixture of compounds of all 4 classes of UV-absorbers (hydroxybenzophenone, 2-hydroxyphenyltriazine, oxanilide and 2- hydroxyphenylbenzotriazole).
The polyolefin composition obtainable according to the present invention can be made Into the desired form in known manner. Such processes include, for example, grinding, calendering, extruding, injection-moulding, sintering, compression/sintering or spinning, also extrusion blow-moulding.
The amounts of UV absorber to be selected can depend on the nature of the polyolefin composition and the requirements for its stability. The individual UV absorber components can be added on their own or as a mixture to the appropriate polyolefin compositions. The customary other additives, such as processing stabilizers, antioxidants and other light stabilisers, can also be added to the polyolefin compositions, without thereby impairing the protective action of the UV absorber mixtures employed in accordance with the invention Preferred is a polyolefin composition wherein the substituent R1 or R2 in the compounds of the formula (lia) is located in the ortho-position or para-position relative to the hydroxyl group.
Also preferred is a polyolefin composition, in which, in the compounds of the formula (lIa), R1 is hydrogen or alkyl having 1 to 20 carbon atoms, R2 is hydrogen, alkyl having 1 to 18 carbon atoms or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety and R3 is hydrogen, chlorine or alkyl having 1 to 4 carbon atoms. Prefernce is given to compounds, in which R1 is in the ortho-position relative to the hydroxyl group and is hydrogen or alkyl having 4 to 12 carbon atoms, R2 is in the para-position relative to the hydroxyl group and is alkyl having 1 to
<Desc/Clms Page number 12>
6 carbon atoms or cumyl and R3 is hydrogen or chlorine. More preferably Ri) s alkyl having 8 to 12 carbon atoms, Rz is alkyl having 4 to 6 carbon atoms and R3 is hydrogen.
Other preferred polyolefin compositions are those, in which, in the compounds of the formula
(lib), T is alkyl having 1 to 6 carbon atoms, T, is hydrogen, chlorine or alkyl having 1 to 4 carbon atoms, n is 1 or 2 and, if n is 1, T2 IS one of the radicals of the formuia-OTs or
/T4 and, if n is 2, T2 is a radical of the formula-O-Tg-O-or/10" jn TT, T T,
which T3 is hydrogen, alkyl having 1 to 18 carbon atoms or alkyl which has 3 to 18 carbon atoms and is interrupted once or several times by-0-, T4 and Ts independently of one another are hydrogen, alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 8 carbon atoms or hydroxyalkyl having 2 to 4 carbon atoms, Tg is hydrogen or alkyl having 1 to 6 carbon atoms, and Tg and T10 are alkylen having 2 to 8 carbon atoms, alkenylene having 4 to 8 carbon atoms or alkylen which has 2 to 18 carbon atoms and is interrupted once or several times by-0-..
More preferably, In which T IS alkyl having 1 to 4 carbon atoms, T, IS hydrogen or chlonne and T2 IS one of the radicals of the formula-OTg or-O-Tg-O-in which T3 is hydrogen, alkyl having 1 to 12 carbon atoms or a radical of the formula-(OC2H4)4-8--H and Tg 9 alkylene having 2 to 8 carbon atoms.
Most preferably T2 is a radical of the formula-OTg and T3 is alkyl having 1 to 12 carbon atoms or a radical of the formula -(OC2H4)4-8-H.
Further preferred polyolefin compositions are those, in which, in the compounds of the formula (III), the substituents Y, are hydrogen, alkyl having 1 to 12 carbon atoms or halogen, if u is 1, Y2 is alkyl having 1 to 18 carbon atoms, alkyl which has 1 to 12 carbon atoms and is substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms, -COOY8, -CONY9Y10 and/or - OCOYn, glycidyl or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, or, if u is 2, Yz is alkylene having 2 to 16 carbon atoms, alkenylene having 4 to 12 carbon atoms, xylylene or alkylene which has 3 to 20 carbon atoms, is interrupted by one or more-0atoms and/or is substituted by hydroxyl, the substituents Ys to Y11 being as defined above.
Prefererably Y, are hydrogen, alkyl having 1 to 4 carbon atoms or chlorine, if u is 1, Y2 is
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alkyl which has 1 to 4 carbon atoms and is unsubstituted or substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms, -COOY8, -CONY9Y10 and/or -OCOY11, glycidyl or benzyl, or, If u is 2, Y2 is alkylen having 6 to 12 carbon atoms, butenylen, xylylen or alkylen which has 3 to 20 carbon atoms, is interrupted by one or more -0- atoms and/or is substituted by hydroxyl, Y8 being alkyl having 4 to 12 carbon atoms, alkenylene having 12 to 18 carbon atoms or alkyl which has 6 to 20 carbon atoms, is interrupted by one or more -0- atoms and/or is substituted by hydroxyl, Y 9 and Y10 independently of one another being alkyl having 4 to 8 carbon atoms and Y11 being alkyl having 1 to 8 carbon atoms or alkenyl having 2 or 3 carbon atoms.
More preferably u is 1 and r is 2, Y1 is alkyl having 1 to 4 carbon atoms and Y2 is alkyl having 1 to 18 carbon atoms or alkyl which has 1 to 12 carbon atoms and is substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms, -COOY8 and/or -OCOY11, Y8 being alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 18 carbon atoms or alkyl which has 3 to 20 carbon atoms, is interrupted by one or more oxygen atoms and/or is substituted by hydroxyl, and Y11 being alkenyl having 2 to 18 carbon atoms.
Particularly prefered are the compounds of formula (III), in which Y2 is alkyl having 1 to 8 carbon atoms or alkyl which has 1 to 4 carbon atoms and is substituted by hydroxyl, alkoxy having 12 to 15 carbon atoms,-COOYg and/or-OCOYn, Yg being alkyl having 8 to 12 carbon atoms, alkenyl having 12 to 18 carbon atoms or alkyl which has 5 to 10 carbon atoms, is interrupted by an oxygen atom and is substituted by hydroxyl, and Y11 being alkenyl having 2 to 8 carbon atoms.
Most preferred are compounds of formula (III), in which Y1 is methyl and Y2 is an octyl radical or alkyl which has 1 to 3 carbon atoms and is substituted by hydroxyl, alkoxy having 13 or 15 carbon atoms,-COOYs and/or-OCOYn, Ye being a decyl or octadecenyl radical or alkyl which has 7 carbon atoms and is substituted by hydroxyl and interrupted by an oxygen atom, and Y11 being propenyl.
A further preferred polyolefin composition is, in which, in the compounds of the formula (I), v and w independently of one another are 1 or 2 and the substituents Z independently of one another are hydrogen, halogen or alkoxy having 1 to 12 carbon atoms.
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Also preferred is a composition, in which, in the compounds of the formula (IV), x and y are 1 or 2 and the substituents L independently of one another are hydrogen or alkyl having in each case 1 to 12 carbon atoms.
Individual UV-absorbers suitable in the present invention are given below.
2-Hvdroxvbenzophenones, for example the 4-hydroxy, 4-methoxy, 4-octyloxy, 4-decyloxy, 4dodecyloxy, 4-benzyloxy, 4,2', 4'-trihydroxy and 2'-hydroxy-4, 4'-dimethoxy derivatives.
2- (2'-Hvdroxvphenyl) benzotriazoles, for example 2-(2'-hydroxy-5'-methylphenyl)-benzo- triazole, 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotriazole, 2-(5'-tert-butyl-2'-hydroxyphe- nyl) benzotriazole, 2- (2'-hydroxy-5'- (1, 1,3, 3-tetramethylbutyl) phenyl) benzotriazole, 2-(3', 5'-di-
tert-butyl-2'-hydroxyphenyl)-5-chloro-benzotriazole, 2- (3'-tert-butyl- 2'-hydroxy-5'-methylphenyl) -5-ch loro-benzotriazole, 2- (3'-sec-butyl-5'-te rt -butyl-2'-hyd roxyphenyl) benzotriazole, 2- (2'hyd roxy-4'-octyloxyphenyl) benzotriazole, 2- (3', 5' -di-te rt -am yl- 2'-hydroxyphen yl) benzotriazole, 2- (3', 5'-bis- (a, a-dimethylbenzyl)-2'-hydroxyphenyl) benzotriazole, 2- (3'-tert-butyl-2'-hydroxy- 5'- (2 -octyloxyca rbonylethyl) phenyl) -5-chl oro-benzotriazole, 2- (3' -te rt -butyl-5'-[2 - (2ethylhexyloxy) -ca rbonyleth yl]- 2'-hyd roxyphenyl) -5-ch loro-benzotnazole, 2- (3' -te rt -butyl- 2'-h yd roxy-5'- (2 -methoxycarbonylethyl) phenyl) -5-chloro-benzotriazole, 2- (3' -tert -butyl-2'-hydroxy- 5'- (2 -methoxycarbonylethyl) phenyl) benzotriazole, 2 - (3'-tert -butyl-2'-hyd roxy-5'- (2 -octyloxycarbonylethyl) phenyl) benzotnazole, 2- (3'-tert-butyl-5'- [2- (2-ethylhexyloxy) carbonylethyl]-2'hydroxyphenyl) benzotriazole, 2- (3'-dodecyl-2'-hydroxy-5'-methyl phenyl) benzotriazole, 2- (3'tert -butyl-2'-hydroxy-5'- (2 -isooctyloxyca rbonylethyl) phenyl benzotriazole, 2, 2' -methylene-bls- [4- (1, 1,3, 3-tetramethylbutyl)-6-benzotriazole-2-ylphenol]; the transesterification product of 2- [3'-tert-butyl-5'-(2-methoxycarbonylethyl)-2'-hydroxyphenyl]-2H-benzotriazolewithpolyethy-
lene glycol 300 ; [R-CHCH-COO-CHCH-where R=3'-tert-buty !-4'-hydroxy-5'-2H- 2 benzotriazol-2-ylphenyl, 2-[2'-hydroxy-3'- (a, a-dimethylbenzyl) -5'- ( 1, 1, 3, 3-tetramethylbutyl) phenyl]benzotnazole ; 2-[2'-hydroxy-3'- (1, 1, 3, 3-tetramethylbutyl) -5'- (a, a-dimethylbenzyl) - phenyl]benzotriazole.
2- (2-Hydroxyphenyl)-1, 3, 5-triazin, for example 2, 4,6-tris (2-hydroxy-4-octyloxyphenyl) - 1,3, 5-triazine, 2- (2-hydroxy-4-octyloxyphenyl) -4, 6-bis (2, 4-dimethylphenyl) -1, 3, 5-triazine, 2- (2, 4-dihydroxyphenyl)-4, 6-bis (2, 4-dimethylphenyl) -1, 3, 5-triazine, 2, 4-bis(2-hydroxy-4-pro-
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pyloxyphenyl)-6- (2, 4-dimethylphenyl)-1, 3, 5-triazine, 2- (2-hydroxy-4-octyloxyphenyl)-4, 6-bis- (4-methylphenyl) -1, 3, 5-triazine, 2- (2-hydroxy-4-dodecyloxyphenyl)-4, 6-bis (2, 4-dimethylphenyl)-1, 3, 5-tnazine, 2- (2-hydroxy-4-tridecyloxyphenyl)-4, 6-bis (2, 4-dimethylphenyl) -1, 3, 5-tnazine, 2-[2 -hydroxy-4- (2-hydroxy-3-butyloxy-propoxy) phenyl]-4, 6-bis (2, 4-dimethyl)-1, 3, 5-triazine, 2-[2-hydroxy-4- (2-hydroxy-3-octyloxy-propyloxy) phenyl]-4, 6-bIS (2, 4-dimethyl)-1, 3, 5- triazine, 2-[4-(dodecyloxy/tridecyloxy-2-hydroxypropoxy)-2-hydroxy-phenyl]-4,6-bis (2, 4-d imethylphenyl) -1, 3, 5-triazine, 2-[2-hydroxy-4- (2-hydroxy-3-dodecyloxy-propoxy) phenyl]-4, 6bis (2, 4-dimethylphenyl) -1, 3,5-triazine, 2- (2-hydroxy-4-hexyloxy) phenyl-4, 6-diphenyl-1, 3,5triazine, 2-(2-hydroxy-4-methoxyphenyl)-4,6-diphenyl-1, 3,5-triazine, 2,4, 6-tris [2-hydroxy-4- (3butoxy-2-hydroxy-propoxy) phenyl]-1, 3,5-triazine, 2- (2 -hydroxyphenyl) -4- ( 4-methoxyphenyl) - 6-phenyl-1, 3,5-triazine, 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropyloxy]phenyl}- 4,6-bis (2, 4-dimethylphenyl) -1, 3, 5-triazine.
Oxamides, for example 4, 4'-dioctyloxyoxanilide, 2, 2'-diethoxyoxanilide, 2, 2'-dioctyloxy-5, 5'-di-
tert-butoxanilide, 2, 2'-didodecyloxy-5, 5'-di-tert-butoxanilide, 2-ethoxy-2'-ethyloxanilide, N, N'bis (3-dimethylaminopropyl) oxamide, 2-ethoxy-5-tert-butyl-2'-ethoxanilide and its mixture with 2-ethoxy-2'-ethyl-5, 4'-di-tert-butoxanilide, mixtures of o-and p-methoxy-disubstituted oxanilides and mixtures of o-and p-ethoxy-disubstituted oxanilides.
Preferably the amount of the individual UV absorber in the mixture is from 20% to 80% based on the weight of the mixture, with the proviso that the sum of the individual components adds to 100%.
Preferably the total amount of the UV-absorber mixture is from 0.005 to 5% based on the weight of the polymer.
Also preferred is a polyolefin composition, which additionally contains at least one stencally hindered amine, in particular an amine of this type containing at least one radical of the formula
RCH,. CH, q F' in which R is hydrogen or methyl.
RCH/CHg RCH2 CH3 R
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Examples of such sterically hindered amines are bis (2,2, 6, 6-tetramethyl-4-piperidyl)sebacate, bis (2,2, 6, 6-tetramethyl-4-piperidyl) succinate, bis (1,2, 2,6, 6-pentamethyl-4- piperidyl) sebacate, bls (1-octyloxy-2, 2,6, 6-tetramethyl-4-piperidyl) sebacate, bis (1,2, 2,6, 6- pentamethyl-4-pi peridyl) n-butyl-3, 5-di-tert -butyl-4-hydroxybenzyl malonate, the condensate of 1-(2-hydroxyethyl)-2, 2,6, 6-tetramethyl-4-hydroxypiperidine and succinic acid, linear or cyclic condensates of N, N'-bis (2,2, 6, 6-tetramethyl-4-piperidyl) hexamethylenedlamme and 4tert-octylamino-2, 6-dichloro-1, 3,5-triazine, tris (2,2, 6, 6-tetramethyl-4-piperidyl) nitrilotnacetate, tetrakis (2,2, 6, 6-tetramethyl-4-piperidyl) -1, 2,3, 4-butane-tetracarboxylate, 1, 1'- (1, 2- ethanediyl)-bis (3,3, 5, 5-tetramethylpiperazinone), 4-benzoyl-2, 2,6, 6-tetramethylpiperidine, 4stearyloxy-2, 2,6, 6-tetramethyl piperidine, bis (1,2, 2,6, 6-pentamethylpiperidyl)-2-n-butyl-2- (2- hydroxy-3, 5-di-tert-butylbenzyl) malonate, 3-n-octyl-7, 7,9, 9-tetramethyl-1, 3, 8-triazaspiro [4 5]decan-2,4-dione, bis (1-octyloxy-2, 2,6, 6-tetramethylpiperidyl) sebacate, bis (1-octyloxy-2, 2,6, 6tetramethylpiperidyl) succinate, linear or cyclic condensates of N, N'-bis- (2, 2,6, 6-tetramethyl-
4-piperidyl) hexamethylenediamine and 4-morpholino-2, 6-dichloro-1, 3, 5-tnazine, the condensate of 2-chloro-4, 6-bis (4-n-butylamino-2, 2, 6, 6-tetramethylpiperidyl) -1, 3, 5-triazine and 1, 2-bis (3-aminopropylammo) ethane, the condensate of 2-chloro-4, 6-di- (4-n-butylamlno- 1,2, 2,6, 6-pentamethylpiperidyl) -1, 3, 5-triazine and 1, 2-bis- (3-aminopropylamino) ethane, 8acetyl-3-dodecyl-7, 7,9, 9-tetramethyl-1, 3, 8-triazaspiro[4,5]decane-2,4-dione, 3-dodecyl-1- (2,2, 6, 6-tetramethyl-4-piperidyl) pyrrolidin-2, 5-dione, 3-dodecyl-l- (1, 2,2, 6, 6-pentamethyl-4- piperidyl) pyrrolidine-2, 5-dione, a mixture of 4-hexadecyloxy- and 4-stearyloxy-2, 2,6, 6-tetramethylpiperidine, a condensation product of N, N'-bis (2,2, 6, 6-tetramethyl-4-piperidyl) hexamethylenediamine and @ohexylamino-2,6-dichloro-1, 3,5-triazine, a condensation product of 1, 2-bis (3-aminopropylamino) ethane and 2,4, 6-trichloro-1, 3, 5-triazine as well as 4- butylamine-2, 2,6, 6-tetramethylpiperidine (CAS Reg. No [136504-96-6]) ; N- (2, 2,6, 6tetramethyl-4-piperidyl)-n-dodecylsuccinimid, N-(1, 2,2, 6, 6-pentamethyl-4-piperidyl) -n- dodecylsucci n imid, 2-undecyl-7, 7,9, 9-tetramethyl-1-oxa-3,8-diaza-4-oxo-spiro[4,5]decane, a reaction product of 7,7, 9, 9-tetramethyl-2-cycloundecyl-1-oxa-3, 8-diaza-4-oxospiro
[4, 5] decane und epichlorohydrin, 1, 1-bis (1, 2, 2, 6, 6-pentamethyl-4-piperidyloxycarbonyl)-2- (4methoxyphenyl) ethene, N, N'-bis-formyl-N, N'-bis (2, 2, 6, 6-tetramethyl-4-piperidyl) hexamethylenedlamine, diester of 4-methoxy-methylene-malonic acid with 1, 2, 2, 6, 6-pentamethyl- 4-hydroxypiperidi ne, poly [methylpropyl-3-oxy-4-(2, 2, 6, 6-tetramethyl-4-piperidyl)] si loxane, reaction product of maleic acid anhydride-a-olefin-copolymer with 2,2, 6, 6-tetramethyl-4- aminopiperidine or 1,2, 2,6, 6-pentamethyl-4-aminopiperidine,
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The polyolefin composition may contain further additives. Examples are given below.
1 Antioxidants
1. 1. Alkylated monophenols, for example 2, 6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4, 6-dimethylphenol, 2, 6-di-tert -butyl-4-ethylphenol, 2, 6-di-tert-butyl-4-n-butylphenol, 2, 6-di-tert-butyl-4-isobutylphenol, 2, 6-dicyclopentyl-4-methylphenol, 2- (a-methylcyclohexyl) -4, 6-dimethyl- phenol, 2, 6-dioctadecyl-4-methylphenol, 2, 4, 6-tricyclohexylphenol, 2, 6-di-tert-butyl-4- methoxymethylphenol, nonylphenols which are linear or branched in the side chains, for example, 2, 6-di-nonyl-4-methylphenol, 2, 4-dimethyl-6- (1'-methylundec-1'-yl) phenol, 2,4-dimethyl-6- (1'-methylheptadec-1'-yl) phenol, 2, 4-dimethyl-6- (1'-methyltridec-1'-yl) phenol and mixtures thereof.
1. 2. Alkylthiomethvlphenols, for example 2, 4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctylthiomethyl-6-methylphenol, 2, 4-dioctylthiomethyl-6-ethylphenol, 2, 6-d i-dodecylthiomethyl- 4-nonylphenol.
1. 3 Hydroquinones and alkylated hydroquinones, for example 2, 6-di-tert-butyl-4-methoxy- phenol, 2, 5-di-tert-butylhydroquinone, 2, 5-di-tert-amylhydroquinone, 2, 6-diphenyl-4-octade- cyloxyphenol, 2, 6-di-tert-butylhydroquinone, 2, 5-di-tert -butyl-4-hyd roxyanisole, 3,5-di-tert- butyl-4-hydroxyanisole, 3, 5-di-tert -butyl-4-hyd roxyphenyl stea rate, bis- (3, 5-di-tert -butyl-4- hydroxyphenyl) adipate.
1. 4 Tocopherol, for example a-tocopherol, 3-tocopherol, y-tocopherol, 6-tocopherol and mixtures thereof (Vitamin E).
1.5 Hydroxylated thiodiphenyl ethers, for example 2,2'-thiobis (6-tert-butyl-4-methylphenol), 2,2'-thiobis (4-octylphenol), 4, 4'-thiobis (6-tert-butyl-3-methylphenol), 4,4'-thiobis (6-tert-butyl-
2-methylphenol), 4, 4'-thiobis- (3, 6-di-sec-amylphenol), 4, 4'-bis (2, 6-dimethyl-4-hydroxyphe- nyl) disulfide.
1.6. Alkylidenebisphenols, for example 2, 2'-methylenebis (6-tert-butyl-4-methylphenol), 2,2'methylenebis (6-tert-butyl-4-ethylphenol), 2, 2'-methylenebis [4-methyl-6- (a-methylcyclohexyl)-
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phenol], 2, 2' -methylenebis (4-methyl-6-cyclohexylphenol), 2, 2'-methylenebis (6-nonyl-4-methylphenol), 2, 2'-methylenebis ( 4, 6-di-tert-butylphenol), 2, 2'-ethylidenebis (4, 6-di-tert-butylphenol), 2, 2' -ethylidenebis (6-tert-butyl-4-isobutylphenol), 2, 2'-methylenebis[6- ( a-methyl ben- zyl)-4-nonylphenol], 2,2'-methylenebis[4,-(α,α-dimethylbenzyl)-4-nonylphenol], 4, 4'-methylenebis (2, 6-di-tert-butylphenol), 4,4'-methylenebis(6-tert-butyl-2-methylphenol), 1, 1-bis (5- tert -butyl-4-hyd roxy-2 -methylphenyl) butane, 2,6-bis (3-tert -b utyl-5-methyl-2 -h yd roxybenzyl) -4- methylphenol, 1,1, 3-tris (5-tert-butyl-4-hydroxy-2-methylphenyl) butane, 1, 1-bis (5-tert-butyl-4-
hydroxy-2-methyl-phenyl) -3-n-dodecylmercaptobutane, ethylene glycol bis[3, 3-bls (3'-tertbutyl-4'-hydroxyphenyl) butyrate J, bis (3-tert-butyl-4-hydroxy-5-methyl-phenyl) dicyclopentadiene, bis - (3'-tert -butyl-2'-hydroxy-5'-methylbenzyl) -6-tert -butyl-4-methylphenyl]tere phthalate, 1, 1-bis- (3, 5-dimethyl-2-hydroxyphenyl) butane, 2, 2-bis- (3, 5-di-tert-butyl-4-hydroxyphenyl) propane, 2, 2-bis- (5-tert -butyl-4-hydroxy2-methylphenyl) -4-n-dodecylmercaptobutane, 1, 1, 5, 5-tetra- (5-tert -butyl-4-hydroxy-2 -methylphenyl) pentane 1. 7 0-, N-and S-benzyl compounds, for example 3, 5, 3', 5'-tetra-tert-butyl-4,4'-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3, 5-dimethylbenzylmercaptoacetate, tridecyl-4-hydroxy- 3, 5-di-tert-butylbenzylmercaptoacetate, tris (3, 5-di-tert -butyl-4-hydroxybenzyl) amme, bls (4- tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) dithioterephthalate, bis (3, 5-di-tert-butyl-4-hydroxybenzyl) sulfide, isooctyl-3, 5-di-tert-butyl-4-hydroxybenzyl mercaptoacetate.
1. 8. Hydroxybenzylated malonates, for example dioctadecyl-2,2-bis-(3,5-di-tert-butyl-2-hy-
droxybenzyl) -malonate, di-octadecyl-2 - (3-tert -butyl-4-hydroxy-5-methyl benzyl) -m alonate, d idodecylmercaptoethyl-2, 2-bis- (3, 5-di-tert-butyl-4-hydroxybenzyl) malonate, bis[4- (1, 1, 3, 3-te- tramethylbutyl) phenyl]-2, 2-bis (3, 5-di-te rt -butyl-4-hyd roxybenzyl) malonate.
1 9 Aromatic hydroxybenzvl compounds, for example 1,3, 5-tris- (3, 5-di-tert-butyl-4-hydroxy- benzyl)-2, 4, 6-tnmethylbenzene, 1,4-bis (3, 5-dl-tert-butyl-4-hydroxybenzyl) -2, 3,5, 6-tetramethylbenzene, 2,4, 6-tris (3, 5-di-tert-butyl-4-hydroxybenzyl)phenol.
1 10 Triazine Compounds, for example 2,4-bis (octylmercapto)-6-(3,5-di-tert-butyl-4-hydroxyanilino)-1, 3,5-triazine, 2-octylmercapto-4, 6-bis (3, 5-di-tert-butyl-4-hydroxyanilin0) -1, 3,5triazine, 2-octylmercapto-4, 6-bis (3, 5-di-tert-butyl-4-hydroxyphenoxy)-1, 3,5-triazine, 2,4, 6tris (3, 5-di-tert-butyl-4-hydroxyphenoxy)-1, 2, 3-triazine, 1,3, 5-tris- (3, 5-di-tert -butyl-4-hydroxy- benzyl) isocyanurate, 1,3, 5-tris ( 4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) socyanurate, 2,4, 6-
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tris (3, 5-di-tert -butyl-4-hydroxyphenylethyl) -1, 3, 5-triazine, 1, 3, 5-tris (3, 5-di-tert-butyl-4hydroxyphenylpropionyl) -hexahydro-1, 3, 5-triazine, 1, 3, 5-tris (3, 5-dicyclohexyl-4-hydroxyben- zyl) lsocyanurate.
1. 11. Benzylphosphonates, for example dimethyl-2, 5-di-tert-butyl-4-hydroxybenzylphospho-
nate, diethyl-3, 5-d Hert -butyl-4-hyd roxybenzylphosphonate, dioctadecyl3, 5-di-tert -butyl-4-hydroxybenzyl phosphonate, d ioctadecyl-5-tert -butyl-4-hydroxy-3-methyl benzyl ph os phonate, the calcium salt of the monoethyl ester of 3, 5-di-tert-butyl-4-hydroxybenzylphosphonic acid 1. 12. Acylaminophenols, for example 4-hydroxylauranilide, 4-hydroxystearanilide, octyl N- (3, 5-di-tert -butyl-4-hydroxyphenyl) carbamate.
1 13 Esters ofP- (3, 5-di-tert-butv (-4-hvdroxyphenv !) propionic aod with mono- or polyhydnc alcohols, e. g. with methanol, ethanol, n-octanol, i-octanol, octadecanol, 1, 6-hexanediol, 1,9nonanediol, ethylene glycol, 1, 2-propanediol, neopentyl glycol, thiodiethylene glycol, diethy- lene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N'-bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylol- propane, 4-hydroxymethyl-1-phospha-2, 6, 7 -trioxabicyclo[2. 2, 2]octane.
1. 14. Esters of - (5-tert-butyl-4-hvdroxy-3-methvlphenyl) propionic acid with mono-or poly- hydric alcohols, e. g. with methanol, ethanol, n-octanol, i-octanol, octadecanol, 1,6-hexanediol, 1, 9-nonanediol, ethylene glycol, 1, 2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N'bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol,
trimethylolpropane, 4-hydroxymethyl-1-phospha-2, 6, 7 -trioxabicyclo[2. 2. 2]octane.
1. 15. Esters of - (3, 5-dicvclohexvl-4-hvdroxvphenyl) propionic acid with mono-or polyhydric alcohols, e. g. with methanol, ethanol, octanol, octadecanol, 1, 6-hexanediol, 1, 9-nonandiol, ethylene glycol, 1, 2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyehtyl)isocyanurate, N, N'-bis (hydroxyethyl) ox-
amide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2, 6, 7 -trioxabicyclo[2. 2. 2]octane,
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1. 16. Esters of 3, 5-di-tert-butvl-4-hvdroxvphenvl acetic acid with mono-or polyhydric alco- hols, e. g. with methanol, ethanol, octanol, octadecanol, 1, 6-hexanediol, 1, 9-nonandiol, ethylene glycol, 1, 2-propandiol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N'-bis (hydroxyethyl) ox-
amide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2, 6, 7 -trioxabicyclo[2. 2. 2]octane, 1 17 Amides of - (3, 5-di-tert-butvl-4-hvdroxvphenvl) propionlc acid e. g. N, N'-bis (3, 5-di-tertbutyl-4-hydroxyphenylpropionyl) hexamethylenediam ide, N, N'-bis (3, 5-di-tert -butyl-4- hydroxyphenylpropionyl) trimethylened iam ide, N, N'-bis (3, 5-di-tert -butyl-4-hydroxyphenylpropio nyl) - hydrazide, N, N'-bis [2-(3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionyloxy)ethyl]oxamide (NaugardXL-1 supplied by Uniroyal).
1 18 Ascorbic acid (vitamin C) 1. 19 Aminic antioxidants, for example N, N'-di-isopropyl-p-phenylenediamine, N, N'-di-secbutyl-p-phenylenediamine, N, N'-bis (1, 4-dimethylpentyl) -p-phenylenediamme, N, N'-bis (1- ethyl-3-methylpentyl) -p-phenylenediamine, N, N'-bis(1-methylheptyl)-p-phenylenediamine.
N, N'-dicyclohexyl-p-phenylenediamine, N, N'-diphenyl-p-phenylenediamine, N, N'-bis (2-naph-
thyl) -p-phenylenediam ine, N-isopropyl-N'-phenyl-p-phenylenediamine, N- (1, 3-dlmethylbutyl) N'-phenyl-p-phenylenediamine, N- (1-methylheptyl) -N' -phenyl-p-phenylenediamine, N-cyclohexyl-N'-phenyl-p-phenlenediamine, 4- (p-toluenesulfamoyl) diphenylam ine, N, N'-dimethylN, N'-di-sec-butyl-p-phenylenediamine, diphenylamine, N-allyldiphenylamine, 4-isopropoxydiphenylamin, N-phenyl-1-naphthylamine, N- (4-tert-octylphenyl)-1-naphthylamine, N-phenyl-2-naphthylamine, octylated diphenylamin, for example p, p'-di-tert-octyldiphenylamine, 4n-butylaminophenol, 4-butyrylaminophenol, 4-nonanoylaminophenol, 4-dodecanoylaminophenol, 4-octadecanoylaminophenol, bis (4-methoxyphenyl) amine, 2, 6-dl-tert-butyl-4-dlmethylamlnomethylphenol, 2, 4' -diaminodlphenylmethane, 4, 4' -diamlnodiphenylmethane, N, N, N', N'-tetramethyl-4, 4'-diaminodiphenylmethane, 1, 2-bis [ (2-methylphenyl) amino] ethane, 1,2-bis (phenylamino) propane, (o-tolyl) biguanide, bis[4-(1',3'-dimethylbutyl)phenyl]amine, tertoctylated N-phenyl-1-naphthylamine, a mixture of mono-and dialkylated tert-butyl/tertoctyldiphenylamines, a mixture of mono-and dialkylated nonyldiphenylamines, a mixture of mono-and dialkylated dodecyidiphenylamines, a mixture of mono- and dialkylated Isopro- pyl/isohexyldiphenylamines, a mixture of mono-und dialkylated tert-butyldiphenylamines,
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2,3-dihydro-3, 3-dimethyl-4H-1, 4-benzothiazine, phenothiazine, a mixture of mono-und dialkylated tert-butyl/tert-octylphenothiazines, a mixture of mono-und dialkylated tert-octyl-phenothiazines, N-allylphenothiazin, N, N, N', N'-tetraphenyl-1, 4-diaminobut-2-ene, N, N-bis-
(2, 2, 6, 6-tetra methyl-pi perid-4-yl-hexamethylenediam ine, bis (2, 2, 6, 6-tetrameth yl pi pe rid-4-yl) sebacate, 2, 2, 6, 6-tetramethylpiperidin-4-one, 2, 2, 6, 6-tetramethylpiperidin-4-ol.
2 Phosphites and phosphonites, for example triphenyl phosphite, diphenyl alkyl phosphites, phenyl dialkyl phosphites, tris (nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl pentaerythritol diphosphite, tris (2, 4-di-tert-butylphenyl) phosphite, diisodecyl pentaerythritol diphosphite, bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, bis (2,6-di- tert -butyl-4-methylphenyl) -pentaerythritol diphosphite, diisodecyloxypentaerythritol di- phosphite, bis (2, 4-di-tert-butyl-6-methylphenyl) pentaerythritol diphosphite, bis (2,4, 6-tris (tertbutylphenyl) pentaerythritol diphosphite, tristearyl sorbitol triphosphite, tetrakis (2,4-di-tert-butylphenyl) 4, 4'-biphenylen diphosphonite, 6-isooctyloxy-2, 4,8, 1 0-tetra-tert-butyl-1 2H-di-
benz g]-1, 3, 2-dioxaphosphocin, 6-fluor-2, 4, 8, 1 O-tetra-tert-butyl-12-methyl-dibenz[d, g]- 1,3, 2-dioxaphosphocin, bis (2, 4-di-tert-butyl-6-methylphenyl) methyl phosphite, bis (2, 4-dl-tertbutyl-6-methylphenyl) ethyl phosphite, 2,2', 2"-nitnlo[triethyltris (3,3', 5, 5'-tetra-tert-butyl-1, 1'biphenyl-2, 2'-diyl) phosphite], 2-ethylhexyl (3,3', 5, 5'-tetra-tert-butyl-1, 1'-biphenyl-2, 2'-diyl) phosphite.
Especially preferred are the following phosphites: Tris (2, 4-di-tert-butylphenyl) phosphite (Irgafost168, Ciba-Geigy), tris (nonylphenyl) phosphite,
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3 Hydroxylamines, for example, N, N-dibenzylhydroxylamine, N, N-diethylhydroxylamine, N, N-dioctylhydroxylamine, N, N-dilaurylhydroxylamine, N, N-ditetradecylhydroxylamine, N, Ndihexadecylhydroxylamine, N, N-dioctadecylhydroxylamine, N-hexadecyl-N-octadecylhy- droxylamine, N-heptadecyl-N-octadecylhydroxylamine, N, N-dialkylhydroxylamine derived from hydrogenated tallow amine.
4 Nitrones, for example, N-benzyl-alpha-phenyl-nitrone, N-ethyl-alpha-methyl-nitrone, N-octyl-alpha-heptyl-nitrone, N-lauryl-alpha-undecyl-nitrone, N-tetradecyl-alpha-tridcyl-nitrone, Nhexadecyl-alpha-pentadecyl-nitrone, N-octadecyl-alpha-heptadecyl-nitrone, N-hexadecyl-
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alpha-heptadecyl-nitrone, N-ocatadecyl-alpha-pentadecyl-nitrone, N-heptadecyl-alpha-hep- tadecyl-nitrone, N-octadecyl-alpha-hexadecyl-nitrone, nitrone derived from N, N-dialkylhydroxylamine derived from hydrogenated tallow amine.
5 Nucleating a. s 5 Nucleatinq aqents, for example, inorganic substances such as talcum, metal oxides such as titanium dioxide or magnesium oxide, phosphates, carbonates or sulfates of, preferably, alkaline earth metals ; organic compounds such as mono-or polycarboxylic acids and the salts thereof, e. g. 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate; polymeric compounds such as ionic copolymers (ionomers).
6. Fillers and reinforcing agents, for example, calcium carbonate, silicates, glass fibres, glass bulbs, asbestos, talc, kaolin, mica, barium sulfate, metal oxides and hydroxides, carbon black, graphite, wood flour and flours or fibers of other natural products, synthetic fibers.
7. Other additives, for example, plasticisers, lubricants, emulsifiers, pigments, rheology additives, catalysts, flow-control agents, optical brighteners, flameproofing agents, antistatic agents and blowing agents.
8. Benzofuranones and indolinones, for example those disclosed in U. S. 4,325, 863; U. S. 4,338, 244 ; U. S. 5, 175, 312; U. S. 5,216, 052; U. S. 5, 252, 643; DE-A-4316611 ; DE-A-4316622; DE-A-4316876; EP-A-0589839 or EP-A-0591102 or 3- [4- (2-acetoxyethoxy)-
phenyl]-5, 7-di-tert-butyl-benzofuran-2-one, 5, 7-di-tert-butyl-3- [4- (2-stearoyloxyethoxy) phenyljbenzofuran-2-one, 3, 3'-bis [5, 7-di-tert-butyl-3- (4- [2-hydroxyethoxy] phenyl) benzofuran-2one], 5, 5, 7 -di-tert -butyl-3- (4-ethoxyphenyl) benzofuran-2-one, 3- (4-acetoxy-3, 5-dimethylphenyl) -5, 7 -di-tert-butyl-benzofuran-2-one, 3- (3, 5-dimethyl-4-pivaloyloxyphenyl) -5, 7 -di-tert-butylbenzofuran-2-one, 3- (3, 4-dimethylphenyl) -5, 7 -di-tert-butyl-benzofuran-2-one, 3- (2, 3-dimethylphenyl) -5, 7 -di-tert -butyl-benzofuran-2-one. A further aspect of the invention is the use of a mixture of UV-absorbers as defined above for the stabilization of polyolefins.
The following examples illustrate the invention.
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Example 1: Light stabilization of PP homopolymer films 100 parts of unstabilized polypropylene powder (melt flow index 3.2 g/10 minutes, 230 C/ 2160 g) are homogenized at 2000C for 10 minutes in a Brabender plastograph (RTM) with 0. 05 parts of pentaerythrityl-tetrakis-3- (3, 5-ditert. butyl-4-hydroxyphenyl) -propionate, 0 05 parts of tris- (2, 4-di-tert. butylphenyl) -phosphite, 0.1 parts of Ca stearate and the amount of light stabilizer indicated in table 1. The material thus obtained is compression molded In a laboratory press between two aluminum foils for 6 minutes at 2600C to a 0. 5 mm thick film which is cooled immediately to room temperature in a water-cooled press. Samples of 60 x 25 mm are cut out of these 0.5 mm films and exposed in a WEATHER-OMETER Ci 65 (RTM) (black panel temperature 632 C, without water-spraying) Periodically, these samples are removed from the exposure apparatus and their carbonyl content IS measured with an infrared spectrophotometer.
The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 is a measure for the stabilizing efficiency of the light stabilizer. The values obtained are summarized in the following table (Table 1) Table 1: Performance in PP Homopolymer 0.5 mm Thick Films
Stabilization TO. 1' (h) Calculated WEATHER-additive effect OMETER Ci 65 of combinations Control 120 0. 2% CHIMASSORB 81 410 - 0. 2% TINUVIN 326 430 0. 2% TINUVIN 1577 570 02% TINUVIN 315 905 - 0. 1% CHIMASSORB 81 + 0. 1% TINUVIN 315 770 657 0. 1% TINUVIN 326 + 0. 1% TINUVIN 315 705 667 0 1 % TINUVIN 1577 + 0. 1 % TINUVIN 315 810 737
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Example 2: Light stabilization of PP homopolymer films 100 parts of unstabilized polypropylene powder (melt flow index 12 g/10 minutes, 230 C/ 2160 g) are homogenized at 2000C for 10 minutes in a Brabender plastograph (RTM) with 0. 05 parts of pentaerythrityl-tetrakis-3- (3, 5-ditert. butyl-4-hydroxyphenyl) -proplonate, 0.05 parts of tris- (2, 4-di-tert. butylphenyl)-phospite, 0. 1 parts of Ca stearate and the amount of light stabilizer indicated in table 2. The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 2600C to a 0.1 mm thick film, which is cooled immediately to room temperature in a water-cooled press. Samples of 60 x 25 mm are cut out of these 0.1 mm films and exposed in a XENOTEST 1200 (RTM) (black panel temperature 532 C, without water-spraying).
Periodically, these samples are removed from the exposure apparatus and their carbonyl content is measured with an infrared spectrophotometer.
The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 is a measure for the stabilizing efficiency of the light stabilizer. The values obtained are summarized in the following table (Table 2).
Table 2: Light Stabilization of PP Homopolymer Films
Stabilization TO. 1: (h) Calculated XENOTEST additive effect of 1200 combinations Control 300 0.6% CHIMASSORB 81 3120 0. 6% TINUVIN 327 440 0. 6% TtNUV ! N315 1090 0.3% CHIMASSORB 81 +0. 3% TINUVIN 315 2650 2105 0. 3% TINUVIN 327+0.3% TINUVIN 315 940 765 0.2% CHIMASSORB 81 +0. 2% TINUVIN 327 1870 1550 +0.2% TINUVIN 315 0.4% CHIMASSORB 81 +0. 1 % TINUVIN 327 2925 2335 +0 1 % TINUVIN 315
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0. 3% CHIMASSORB 81 +0.15% TINUVIN 327 2720 2030 +0.15% TINUVIN 315 Example 3: Light stabilization of PE-HD films (Phillips-type) 100 parts of a Philips-type high density polyethylene powder (density: 0965, melt flow index 6 0 g/10 minutes, 190 C/2160 g) stabilized with 0.05 parts of pentaerythrityl-tetrakis-3- (3, 5- ditert. butyl-4-hydroxyphenyl) -propionate and 0.1 parts of Ca stearate are homogenized at 1800C for 10 minutes in a Brabender plastograph (RTM) with the amount of light stabilizer and coadditives indicated in table 3..
The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 2100C to a 0. 2 mm thick film which is cooled immediately to room temperature in a water-cooled press. Samples of 60 x 25 mm are cut out of these 0 2 mm films and exposed in a XENOTEST 1200 (RTM) (black panel temperature 532 C, without water spraying) Periodically, these samples are removed from the exposure apparatus and their carbonyl content is measured with an Infrared spectrophotometer. The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 is a measure for the stabilizing efficiency of the light stabilizer The values obtained are summarized in the following table 3 Table 3: Light Stabilization of 0.2 mm Thick PE-HD Films (Phillips Type)
Stabilization T01 : (h) Calculated XENOTEST additive effect 1200 of combinations Control 360 0. 3% CHIMASSORB 81 2230 0. 3% TINUVIN 327 1240 - 0. 3% TINUVIN 315 2020 - 015% CHIMASSORB 81 + 0. 15% TINUVIN 315 2650 2125
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0. 15% TINUVIN 327 + 0. 15% TINUVIN 315 3060 1630 0. 1% CHIMASSORB 81 + 0. 1% TINUVIN 327 + 3150 1830 0. 1% TINUVIN 315 Example 4: Light stabilization of PE-LD films 100 parts of unstabilized low density polyethylene powder (density. 0. 918, melt flow Index 0. 3 g/10 minutes at 190 C/2160 g) are homogenized at 180 C for 10 minutes in a Brabender plastograph (RTM) with 0.02 parts of octadecyl 3-(3,5-di-tert.-butyl-4hydroxyphenyl) -propionate, 0.08 parts of tris- (2, 4-di-tert. butylphenyl) -phosphite and the amount of light stabilizer indicated in the table. The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 1700C to a 0. 5 mm thick film, which is quenched immediately in cold water. Samples of 60 x 25 mm are cut out of these 0.5 mm films and exposed in a WEATHER-OMETER Ci 65 (RTM) (black panel temperature 632 C, without water-spraying).
Periodically, these samples are removed from the exposure apparatus and their carbonyl content is measured with an infrared spectrophotometer.
The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 IS a measure for the stabilizing efficiency of the light stabilizer The values obtained are summarized in the following table.
Table 4: Light Stabilization of PE-LD Films
Stabilization TO. 1: (h) Calculated WEATHER-additive OMETER Ci 65 effect of combinations Control 150 - 01% CHIMASSORB 81 430 - 0.2% CHIMASSORB 81 665 0. 1% TINUVIN 326 760 - 0.2% TINUVIN NUVIN 326 1150 0. 1% TINUVIN 1577 815 02% TINUVIN 1577 1100 -
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0. 1% TINUVIN 315 705 - 0.2% TINUVIN 315 2000 - 0. 05% CHIMASSORB 81 +0. 05% TINUVIN 315 780 567 0.05% TINUVIN 326 +0. 05% TINUVIN 315 795 732 0.05% TINUVIN 1577 +0.05% TINUVIN 315 830 760 0. 1 % CHIMASSORB 81 +0, 1 % TINUVIN 315 1660 1332 Example 5: Light stabilization of PE-LLD films 100 parts of unstabilized linear low density polyethylene (PE-LLD) powder (density : 0, 920,
melt flow index 1. 0 g/10 minutes at 190 C/2160 g) are homogenized at 1800C for 10 minutes In a Brabender plastograph (RTM) with 0.02 parts octadecyl 3-93,5-di-tert.-butyl-4-hydroxyphenyl)-propionate, 0.08 parts tris- (2, 4-di-tert. butylphenyl) -phosphite, 0 1 parts Ca stearate and the amounts light stabilizers indicated in table 5. The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 170 C to a 0. 5-mm thick film, which is quenched immediately in cold water. Samples of 60 x 25 mm are cut out of these 0.5 mm films and exposed in a WEATHER-OMETER Ci 65 (RTM) (black panel temperature 632 C, without water-spraying).
Periodically, these samples are removed from the exposure apparatus and their carbonyl content IS measured with an infrared spectrophotometer The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 is a measure for the stabilizing efficiency of the light stabilizer. The values obtained are summarized in the following table 5.
Table 5: Light Stabilization of PE-LLD Conventional Type
Stabilization TO. 1. (h) Calculated WEATHER-additive effect of OMETER Ci 65 combinations Control 260 02% CHIMASSORB 81 2260 - 0.2% TINUVIN 326 1350 - 0.2% TINUVIN 1577 1600 0.2% TINUVIN 315 2840
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0. 1% CHIMASSORB 81 +0. 1% TINUVIN 315 3300 2550 0.1% TINUVIN 326 + 0. 1% TINUVIN 315 2820 2095 0. 1% TINUVIN 1577 + 0. 1% TINUVIN 315 2920 2220 Example 6: Light stabilization of metallocene-PE films 100 parts of unstabilized metallocene polyethylene powder (density 0 905,10 % butene comonomer) are homogenized at 180 C for 10 minutes in a Brabender plastograph (RTM) with 0.02 parts of octadecyl 3- (3, 5-di-tert.-butyl-4-hydroxyphenyl)-propionate, 0. 08 parts of tns- (2, 4-di-tert. butylphenyl) -phosphite, 0.1 part of Ca stearate and the amount of light stabilizer indicated in the table. The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 170 C to a 0.2 mm thick film which is quenched immediately in cold water. Samples of 60 x 25 mm are cut out of these 0.2 mm films and exposed in a WEATHER-OMETER Ci 65 (RTM) (black panel temperature 632 C, without water-spraying) Periodically, these samples are removed from the exposure apparatus and their carbonyl content is measured with an infrared spectrophotometer.
The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 is a measure for the stabilizing efficiency of the light stabilizer. The values obtained are summarized in the following table.
Table 6: Light Stabilization of Metallocene Polyethylene (m-PE-LLD)
Stabilization TO. 1: (h) Calculated WEATHER-additive effect OMETER Ci 65 of combinations Control 365 02% CHIMASSORB 81 1920 - 0 2% TINUVIN 315 3380- 0. 1% CHIMASSORB 81 + 0. 1% TINUVIN 315 3440 2650
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Example 7: Light stabilization of PE-HD films 100 parts unstabilized high density polyethylene powder (density : 0. 965, melt flow index 2. 9 g/10 minutes, 190 C/5 kg) are homogenized at 180 C for 10 minutes in a Brabender plastograph (RTM) with the amount of light stabilizer indicated in the table. The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 21 OOC to a 0.2 mm thick film which is cooled immediately to room temperature In a water-cooled press. Samples of 60 x 25 mm are cut out of these 0.2 mm films and exposed In a WEATHER-OMETER Ci 65 (RTM) (black panel temperature 6320C, without water spraying).
Periodically, these samples are removed from the exposure apparatus and their carbonyl content is measured with an infrared spectrophotometer The exposure time corresponding to formation of a carbonyl absorbance of 0. 1 IS a measure for the stabilizing efficiency of the light stabilizer. The values obtained are summarized in the following table 7.
Table 7: Light Stabilization of 0.2 mm thick PE-HD films
Stabilization To 1 (h) Wather-Calculated Ometer additive effect of combinations Control 280 0 3% CHIMASSORB 81 4021 0.3% TINUVIN 327 580 - 03% TINUVIN 315 2223 - 0 3% TINUVIN 1577 476 0. 15% CHIMASSORB 81 + 0. 15% TINUVIN 315 3616 3122 0 15% TINUVIN 327 + 0. 15% TINUVIN 315 2496 1401 0 15% TINUVIN 315 + 0 15% TINUVIN 1577 3208 1349
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0. 1% CHIMASSORB 81 + 0, 1% TINUVIN 327 + 3136 2275 0.1% TINUVIN 315 0. 1% CHIMASSORB 81 + 0. 1% TINUVIN 1577 + 3314 2240 0.1% TINUVIN 315 0 1% TINUVIN 327 + 0 1% TINUVIN 1577 + 0. 1% 1948 1093 TINUVIN 315 Example 8: Light stabilization of metallocene-PE-LLD films 100 parts of unstabilized metallocene polyethylene powder (density: 0.934, melt flow Index 60 g/10 minutes, 1900C/2160 g) are homogenized at 1800C for 10 minutes in a Brabender plastograph (RTM) with the amount of light stabilizer indicated in the table. The material thus obtained is compression molded in a laboratory press between two aluminum foils for 6 minutes at 170 C to a 0.2 mm thick film which is quenched immediately in cold water Samples of 60 x 25 mm are cut out of these 0.2 mm films and exposed in a WEATHEROMETER Ci 65 (RTM) (black panel temperature 632 C, without water-spraying) Periodically, these samples are removed from the exposure apparatus and their carbonyl content IS measured with an infrared spectrophotometer.
The exposure time corresponding to formation of a carbonyl absorbance of 0.1 is a measure for the stabilizing efficiency of the light stabilizer. The values obtained are summarized in the following table.
Table 8: Light Stabilization of Metallocene Polyethylene
Stabilization TO. 1: (h) Calculated WEATHER-additive effect OMETER Ci 65 of combinatIons Control 136 0.3% CHIMASSORB 81 1803 03% TINUVIN 327 473 0.3% TINUVIN 1577 324
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0.3% TINUVIN 315 1903 0. 15% CHIMASSORB 81 +0. 15% TINUVIN 315 2293 1853 0. 15% TINUVIN 327 + 0. 15% TINUVIN 315 1311 1188 0. 1% CHIMASSORB 81 + 0. 1% TINUVIN 327 + 1637 1393 0 1% TINUVIN 315
All compounds used are commercial UV-absorbers from Uiba bpecialty Uhemicals Inc and the trade names are Registered Trade Marks.
0 OH Chimassorb 81 z C8H17 HO HO Tinuv) n@326 \N) w (, Tuv 327 Y--//\\ CA N N ci N n = 1 (85-90%) n=0 (10-15%) 0 Tinuvin 315 rO 0 L ro
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\1 Tinuvin@ 1577 0 N -cr N-' "'C
Claims (1)
- Claims 1. A polyolefin composition, which comprises as UV absorber a mixture of a) at least one hydroxybenzophenone and at least one oxanilide ; b) at least one 2-hydroxyphenylbenzotriazole and at least one oxanilide, c) at least one 2-hydroxyphenyltriazine and at least one oxanilide ; d) at least one hydroxybenzophenone, at least one 2-hydroxyphenylbenzotnazole and at least one oxanllide ;e) at least one hydroxybenzophenone, at least one oxanilide and at least one 2-hydroxyphenyltriazine ; or f) at least one 2-hydroxyphenylbenzotriazole, at least one oxanilide and at least one 2-hydroxy phenyltriazine.2 A polyolefin composition according to claim 1 wherein the polyolefin IS polyethylene or polypropylene 3 A polyolefin composition according to claim 1 wherein the hydroxybenzophenone IS of formula Ithe 2-hydroxyphenylbenzotriazole is offormu ! a) ! a, Nb or ! ! c<Desc/Clms Page number 35>the 2-hydroxyphenyltriazine is of formula IIIand the oxanilide is of formula (IV)0 0 H j ! H (L) IV N (L)), (IV) ; wherein (L) xIn the compounds of the formula (I) v is an integer from 1 to 3 and w is 1 or 2 and the substituents Z independently of one another are hydrogen, halogen, hydroxyl or alkoxy having 1 to 12 carbon atoms; In the compounds of the formula (lIa), R. is hydrogen, alkyl having 1 to 24 carbon atoms, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, cycloalkyl having 5 to 8 carbon atoms or a radical of the formula<Desc/Clms Page number 36>R4 -nC, H- in which RsR4 and Rs independently of one another are alkyl having in each case 1 to 5 carbon atoms, or R4, together with the radical CnH2n+1-m, forms a cycloalkyl radical having 5 to 12 carbon atoms, m IS 1 or 2, n is an integer from 2 to 20 and M is a radical of the formula-COORg in which R6 is hydrogen, alkyl having 1 to 12 carbon atoms, alkoxyalkyl having in each case 1 to 20 carbon atoms in the alkyl moiety and in the alkoxy moiety or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, R2 is hydrogen, halogen, alkyl having 1 to 18 carbon atoms, and phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, and R3 IS hydrogen, chlorine, alkyl or alkoxy having in each case 1 to 4 carbon atoms or-COORg ! n whtch Rg is as defined above, at least one of the radicals Ri and R2 being other than hydrogen, In the compounds of the formula (lib) T IS hydrogen or alkyl having 1 to 6 carbon atoms,T1 is hydrogen, chlorine or alkyl or alkoxy having in each case 1 to 4 carbon atoms, n is 1 or 2 and, if n is 1,/T4 T2 is chlorine or a radical of the formu ! a-OTg or-N and, Ts Ts ! n IS 2, T2 IS a radical of the formula/ \ or-O-Tg-O-in which T6 T6 T3 IS hydrogen, alkyl which has 1 to 18 carbon atoms and is unsubstituted or substituted by 1 to 3 hydroxyl groups or by -OeOT6, alkyl which has 3 to 18 carbon atoms, IS interrupted once or several times by -O- or -NT6- and is unsubstituted or substituted by hydroxyl orOCOT6, cycloalkyl which has 5 to 12 carbon atoms and is unsubstituted or substituted by hydroxyl and/or alkyl having 1 to 4 carbon atoms, alkenyl which has 2 to 18 carbon atoms and is unsubstituted or substituted by hydroxyl, phenylalkyl having 1 to 4 carbon atoms in the<Desc/Clms Page number 37>0 alkyl moiety, or a radical of the formula -CH2CH (OH) -T7 or/\ C-CH-CH H 2 2T4 and T5 Independently of one another are hydrogen, alkyl having 1 to 18 carbon atoms, alkyl which has 3 to 18 carbon atoms and is interrupted once or several times by-0-or -NT6-, cycloalkyl having 5 to 12 carbon atoms, phenyl, phenyl which is substituted by alkyl having 1 to 4 carbon atoms, alkenyl having 3 to 8 carbon atoms, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety or hydroxyalkyl having 2 to 4 carbon atoms, T6 is hydrogen, alkyl having 1 to 18 carbon atoms, cycloalkyl having 5 to 12 carbon atoms, alkenyl having 3 to 8 carbon atoms, phenyl, phenyl which is substituted by alkyl having 1 to 4 carbon atoms, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, Ty) s hydrogen, alkyl having 1 to 18 carbon atoms, phenyl which is unsubstituted or substituted by hydroxyl, phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, or- CHsOTs, T8 is alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 8 carbon atoms, cycloalkyl having 5 to 10 carbon atoms, phenyl, phenyl which is substituted by alkyl having 1 to 4 carbon atoms, or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, T9 is alkylene having 2 to 8 carbon atoms, alkenylene having 4 to 8 carbon atoms, alkynylene having 4 carbon atoms, cyclohexylene, alkylene which has 2 to 8 carbon atoms and IS interrupted once or several times by-0-, or a radical of the formula-CH2CH (OH) CH2OT11OCHzCH (OH) CH2- or-CHs-CHzOt--CHz-. T10 is alkylene which has 2 to 20 carbon atoms and can be interrupted once or several times by-0-, or cyclohexylene, T11 is alkylene having 2 to 8 carbon atoms, alkylene which has 2 to 18 carbon atoms and is interrupted once or several times by-0-, 1, 3-cyclohexylene, 1, 4-cyclohexylene, 1,3phenylene or 1, 4-phenylene, or Tio and T6, together with the two nitrogen atoms, are a piperazine ring; in the compounds of formula (11c) R'2 is C1-C12alkyl and k is a number from 1 to 4; in the compounds of the formula (III) u is 1 or 2 and r is an integer from 1 to 3, the substituents Y1 independently of one another are hydrogen, hydroxyl, halogenomethyl, alkyl having 1 to<Desc/Clms Page number 38>12 carbon atoms, alkoxy having 1 to 18 carbon atoms, or halogen, if u is 1, Yz is alkyl having 1 to 18 carbon atoms, phenoxy which is unsubstituted or substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms, or halogen, or is substituted by alkyl or alkoxy having in each case 1 to 18 carbon atoms or halogen, alkyl which has 1 to 12 carbon atoms and is substituted by -COOH, -COOY8, -CONH2, -CONHY9, -CONY9Y10, -NH2-, -NHY9, NY9Y10, -NHCOY11, -CN and/or -OCOY11, alkyl which has 4 to 20 carbon atoms, is interrupted by one or more oxygen atoms and is unsubstituted or substituted by hydroxyl or alkoxy having 1 to 12 carbon atoms, alkenyl having 3 to 6 carbon atoms, glycidyl, cyclohexyl which is unsubstituted or substituted by hydroxyl, alkyl having 1 to 4 carbon atoms and/or- OCOYn, phenylalkyl which has 1 to 5 carbon atoms in the alkyl moiety and is unsubstituted or substituted by hydroxyl, chlorine and/or methyl, -COY12 or -SO2Y13, or, if u is 2, Yz is a ! ky ! ene having 2 to 16 carbon atoms, alkenylene having 4 to 12 carbon atoms, xylylene, alkylene which has 3 to 20 carbon atoms, is interrupted by one or more -0- atoms and/or IS substituted by hydroxyl, -CH2CH (OH) CHTO-Y1S-OCH2CH (OH) CH2, -CO-Y16-CO-, -CO-NH-Y-NH-CO-or- (CHs-COz-Yis-OCOCHs) in which m IS 1,2 or 3, Ys is alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 18 carbon atoms, alkyl which has 3 to 20 carbon atoms, is interrupted by one or more oxygen or sulfur atoms or -NT6- and/or IS substituted by hydroxyl, alkyl which has 1 to 4 carbon atoms and IS substituted byP (O) (OY14)2, -NY9Y10 or -OCOY11 and/or hydroxyl, alkenyl having 3 to 18 carbon atoms, glycidyl, or phenylalkyl having 1 to 5 carbon atoms in the alkyl moiety, Yg and Yio ndependently of one another are alkyl having 1 to 12 carbon atoms, alkoxyalkyl having 3 to 12 carbon atoms, dialkylaminoalkyl having 4 to 16 carbon atoms or cyclohexyl having 5 to 12 carbon atoms, or Yg and Y10 together are alkylene, oxaalkylene or azaalkylene having In each case 3 to 9 carbon atoms, Y11 IS alkyl having 1 to 18 carbon atoms, alkenyl having 2 to 18 carbon atoms or phenyl, Y12 IS alkyl having 1 to 18 carbon atoms, alkenyl having 2 to 18 carbon atoms, phenyl, alkoxy having 1 to 12 carbon atoms, phenoxy, alkylamino having 1 to 12 carbon atoms or phenylamino, Y 13 IS alkyl having 1 to 18 carbon atoms, phenyl or alkylphenyl having 1 to 8 carbon atoms in the alkyl radical, Y14 IS alkyl having 1 to 12 carbon atoms or phenyl,<Desc/Clms Page number 39>Y15 is alkylen having 2 to 10 carbon atoms, phenylen or a group-phenylene-M-phenylenein which M is-0-,-S-,-SOr.-CHs-or-C (CH3) 2-, Yie is alkylen, oxaalkylen or thiaalkylene having in each case 2 to 10 carbon atoms, phenylene or alkenylene having 2 to 6 carbon atoms, Y17 is alkylene having 2 to 10 carbon atoms, phenylene or alkylphenylene having 1 to 11 carbon atoms in the alkyl moiety, and Y18 is alkylene having 2 to 10 carbon atoms or alkylene which has 4 to 20 carbon atoms and is interrupted once or several times by oxygen; in the compounds of the formula (IV) x is an integer from 1 to 3 and the substituents L Independently of one another are hydrogen, alkyl, alkoxy or alkylthio having in each case 1 to 22 carbon atoms, phenoxy or phenylthio.4. A polyolefin composition according to claim 3, in which, in the compounds of the formula (lIa), R1 is hydrogen or alkyl having 1 to 20 carbon atoms, R2 is hydrogen, alkyl having 1 to 18 carbon atoms or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety and R3 is hydrogen, chlorine or alkyl having 1 to 4 carbon atoms.5. A polyolefin composition according to claim 4, in which R1 is in the ortho-position relative to the hydroxyl group and is hydrogen or alkyl having 4 to 12 carbon atoms, Rz is in the paraposition relative to the hydroxyl group and is alkyl having 1 to 6 carbon atoms or cumyl and R3 is hydrogen or chlorine.6. A polyolefin composition according to claim 3, in which, in the compounds of the formula(lib), T is alkyl having 1 to 6 carbon atoms, T, is hydrogen, chlorine or alkyl having 1 to 4 carbon atoms, n is 1 or 2 and, if n is 1, Tz is one of the radicals of the formuta-OTs or/T4 "'N-T-N - N and, if n is 2, T2 is a radical of the formula-O-Tg-O-or/ \ T5 T6 T6 5 6 6in which T3 is hydrogen, alkyl having 1 to 18 carbon atoms or alkyl which has 3 to 18 carbon atoms and is interrupted once or several times by-0-, T4 and Ts independently of one another are hydrogen, alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 8 carbon atoms or hydroxyalkyl having 2 to 4 carbon atoms, T6 is hydrogen or alkyl having 1 to 6 carbon atoms, and Tg and T10 are alkylene having 2 to 8 carbon atoms, alkenylene having 4 to 8<Desc/Clms Page number 40>carbon atoms or alkylene which has 2 to 18 carbon atoms and is interrupted once or several times by-0-.7. A polyolefin composition according to claim 3, in which, in the compounds of the formula (III), the substituents Y, are hydrogen, alkyl having 1 to 12 carbon atoms or halogen, if u is 1, Y2 2 alkyl having 1 to 18 carbon atoms, alkyl which has 1 to 12 carbon atoms and is substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms,-COOYg,-CONYgYic and/or- OCOYn, glycidyl or phenylalkyl having 1 to 4 carbon atoms in the alkyl moiety, or, if u IS 2, Y2 is alkylene having 2 to 16 carbon atoms, alkenylene having 4 to 12 carbon atoms, xylyiene or alkylene which has 3 to 20 carbon atoms, is interrupted by one or more -0- atoms and/or is substituted by hydroxyl, the substituents Y8 to Y11 being as defined in claim 3 8, A polyolefin composition according to claim 7, in which u is 1 and r is 2, Y1 is alkyl having 1 to 4 carbon atoms and Y2 is alkyl having 1 to 18 carbon atoms or alkyl which has 1 to 12 carbon atoms and is substituted by hydroxyl, alkoxy having 1 to 18 carbon atoms, -COOY8 and/or-OCOYn, Yg being alkyl having 1 to 18 carbon atoms, alkenyl having 3 to 18 carbon atoms or alkyl which has 3 to 20 carbon atoms, IS interrupted by one or more oxygen atoms and/or is substituted by hydroxyl, and Y11 being alkenyl having 2 to 18 carbon atoms 9. A polyolefin composition according to claim 8, in which Y, is methyl and Y2 IS an octyl radical or alkyl which has 1 to 3 carbon atoms and is substituted by hydroxyl, alkoxy having 13 or 15 carbon atoms,-COOYg and/or-OCOYn, Ys being a decyl or octadecenyl radical or alkyl which has 7 carbon atoms and is substituted by hydroxyl and interrupted by an oxygen atom, and Y11 being propenyl.10. A polyolefin composition according to claim 3, In which, in the compounds of the formula ( !), v and w Independently of one another are 1 or 2 and the substituents Z Independently of one another are hydrogen, halogen or alkoxy having 1 to 12 carbon atoms.11 A polyolefin composition according to claim 3, in which, In the compounds of the formula (IV), x and y are 1 or 2 and the substituents L independently of one another are hydrogen or alkyl having in each case 1 to 12 carbon atoms.<Desc/Clms Page number 41>12. A polyolefin composition according to claim 1 wherein the amount of the individual UV absorber in the mixture is from 20% to 80% based on the weight of the mixture, with the proviso that the sum adds to 100%.13 A polyolefin composition according to claim 1 wherein the total amount of UV-absorber mixture is from 0.005 to 5% based on the weight of the polymer.14. A polyolefin composition according to claim 1, which additionally contains at least onesterically hindered amine containing at least one radical of the formulaRCH,. CH, in which R is hydrogen or methyl....RCH/CH15 The use of a mixture of UV-absorbers according to claim 1 for the stabilization of polyolefins
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2502015A1 (en) * | 1974-05-22 | 1975-12-04 | Sandoz Ag | Synergistic UV stabilizer-compsns. for plastics - esp. polyolefins |
EP0048594A1 (en) * | 1980-09-18 | 1982-03-31 | Uniroyal, Inc. | Combination of phenolic antioxidant and stabiliser for use in organic materials |
EP0424153A2 (en) * | 1989-10-19 | 1991-04-24 | E.I. Du Pont De Nemours And Company | Ultraviolet screener blends |
US5106891A (en) * | 1990-03-30 | 1992-04-21 | Ciba-Geigy Corporation | Light stabilized coating compositions containing a mixture of 2-hydroxyphenylbenzotriazole and 2-hydroxyphenyltriazine |
WO1998027168A1 (en) * | 1996-12-18 | 1998-06-25 | Basf Corporation | Coating composition and method for reducing ultraviolet light degradation |
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2001
- 2001-03-23 GB GB0207708A patent/GB2376949B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2502015A1 (en) * | 1974-05-22 | 1975-12-04 | Sandoz Ag | Synergistic UV stabilizer-compsns. for plastics - esp. polyolefins |
EP0048594A1 (en) * | 1980-09-18 | 1982-03-31 | Uniroyal, Inc. | Combination of phenolic antioxidant and stabiliser for use in organic materials |
EP0424153A2 (en) * | 1989-10-19 | 1991-04-24 | E.I. Du Pont De Nemours And Company | Ultraviolet screener blends |
US5106891A (en) * | 1990-03-30 | 1992-04-21 | Ciba-Geigy Corporation | Light stabilized coating compositions containing a mixture of 2-hydroxyphenylbenzotriazole and 2-hydroxyphenyltriazine |
WO1998027168A1 (en) * | 1996-12-18 | 1998-06-25 | Basf Corporation | Coating composition and method for reducing ultraviolet light degradation |
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