DE10230417A1 - Use of compositions containing a cyanoacetylurea and a hexafluorosilicate for stabilizing halogen-containing plastics, especially PVC, against thermal and/or photochemical degradation - Google Patents
Use of compositions containing a cyanoacetylurea and a hexafluorosilicate for stabilizing halogen-containing plastics, especially PVC, against thermal and/or photochemical degradation Download PDFInfo
- Publication number
- DE10230417A1 DE10230417A1 DE2002130417 DE10230417A DE10230417A1 DE 10230417 A1 DE10230417 A1 DE 10230417A1 DE 2002130417 DE2002130417 DE 2002130417 DE 10230417 A DE10230417 A DE 10230417A DE 10230417 A1 DE10230417 A1 DE 10230417A1
- Authority
- DE
- Germany
- Prior art keywords
- cyanoacetylurea
- hexafluorosilicate
- pvc
- compositions
- against thermal
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 28
- 150000004761 hexafluorosilicates Chemical class 0.000 title claims abstract description 19
- 229920003023 plastic Polymers 0.000 title claims abstract description 15
- 239000004033 plastic Substances 0.000 title claims abstract description 15
- QJGRPCPCQQPZLZ-UHFFFAOYSA-N n-carbamoyl-2-cyanoacetamide Chemical compound NC(=O)NC(=O)CC#N QJGRPCPCQQPZLZ-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 11
- 150000002367 halogens Chemical class 0.000 title claims abstract description 11
- 230000015556 catabolic process Effects 0.000 title claims abstract description 8
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 8
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 7
- -1 cyanoacetylurea N, N'-dimethyl-N-cyanoacetylurea Chemical compound 0.000 claims description 9
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 23
- 229920000915 polyvinyl chloride Polymers 0.000 description 23
- 229920000642 polymer Polymers 0.000 description 19
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 11
- 229920001577 copolymer Polymers 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- DXALOGXSFLZLLN-WTZPKTTFSA-N (3s,4s,5r)-1,3,4,6-tetrahydroxy-5-[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexan-2-one Chemical compound OCC(=O)[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O DXALOGXSFLZLLN-WTZPKTTFSA-N 0.000 description 3
- JPFGFRMPGVDDGE-UHFFFAOYSA-N Leucrose Natural products OC1C(O)C(O)C(CO)OC1OC1C(O)C(O)C(O)(CO)OC1 JPFGFRMPGVDDGE-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 2
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004908 Emulsion polymer Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 235000010449 maltitol Nutrition 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000006077 pvc stabilizer Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- SQHKJSPPFSVNDF-UHFFFAOYSA-N 1,2,2,3-tetrakis(hydroxymethyl)cyclohexan-1-ol Chemical compound OCC1CCCC(O)(CO)C1(CO)CO SQHKJSPPFSVNDF-UHFFFAOYSA-N 0.000 description 1
- ACCBMUUBLPGINK-UHFFFAOYSA-N 1,2,2,3-tetrakis(hydroxymethyl)cyclopentan-1-ol Chemical compound OCC1CCC(O)(CO)C1(CO)CO ACCBMUUBLPGINK-UHFFFAOYSA-N 0.000 description 1
- YNGDWRXWKFWCJY-UHFFFAOYSA-N 1,4-Dihydropyridine Chemical compound C1C=CNC=C1 YNGDWRXWKFWCJY-UHFFFAOYSA-N 0.000 description 1
- SERLAGPUMNYUCK-DCUALPFSSA-N 1-O-alpha-D-glucopyranosyl-D-mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O SERLAGPUMNYUCK-DCUALPFSSA-N 0.000 description 1
- OZCMOJQQLBXBKI-UHFFFAOYSA-N 1-ethenoxy-2-methylpropane Chemical compound CC(C)COC=C OZCMOJQQLBXBKI-UHFFFAOYSA-N 0.000 description 1
- CISIJYCKDJSTMX-UHFFFAOYSA-N 2,2-dichloroethenylbenzene Chemical compound ClC(Cl)=CC1=CC=CC=C1 CISIJYCKDJSTMX-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- PTJWCLYPVFJWMP-UHFFFAOYSA-N 2-[[3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)COCC(CO)(CO)CO PTJWCLYPVFJWMP-UHFFFAOYSA-N 0.000 description 1
- DBEIAMRYPAJZHO-UHFFFAOYSA-N 2-cyano-n-methyl-n-(methylcarbamoyl)acetamide Chemical compound CNC(=O)N(C)C(=O)CC#N DBEIAMRYPAJZHO-UHFFFAOYSA-N 0.000 description 1
- BISHACNKZIBDFM-UHFFFAOYSA-N 5-amino-1h-pyrimidine-2,4-dione Chemical compound NC1=CNC(=O)NC1=O BISHACNKZIBDFM-UHFFFAOYSA-N 0.000 description 1
- AFHIIJICYLMCSH-VOTSOKGWSA-N 5-amino-2-[(e)-2-(4-benzamido-2-sulfophenyl)ethenyl]benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC(N)=CC=C1\C=C\C(C(=C1)S(O)(=O)=O)=CC=C1NC(=O)C1=CC=CC=C1 AFHIIJICYLMCSH-VOTSOKGWSA-N 0.000 description 1
- SERLAGPUMNYUCK-YJOKQAJESA-N 6-O-alpha-D-glucopyranosyl-D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O SERLAGPUMNYUCK-YJOKQAJESA-N 0.000 description 1
- 241001136792 Alle Species 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 description 1
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- CLLZVSXFRKADEK-UHFFFAOYSA-M P(O)([O-])[O-].O[Al+2].[Ca+2].P(O)([O-])[O-] Chemical class P(O)([O-])[O-].O[Al+2].[Ca+2].P(O)([O-])[O-] CLLZVSXFRKADEK-UHFFFAOYSA-M 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 1
- VCNTUJWBXWAWEJ-UHFFFAOYSA-J aluminum;sodium;dicarbonate Chemical compound [Na+].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O VCNTUJWBXWAWEJ-UHFFFAOYSA-J 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- HDFRDWFLWVCOGP-UHFFFAOYSA-N carbonothioic O,S-acid Chemical class OC(S)=O HDFRDWFLWVCOGP-UHFFFAOYSA-N 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- MLUCVPSAIODCQM-NSCUHMNNSA-N crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 description 1
- MLUCVPSAIODCQM-UHFFFAOYSA-N crotonaldehyde Natural products CC=CC=O MLUCVPSAIODCQM-UHFFFAOYSA-N 0.000 description 1
- 229910001647 dawsonite Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- IEPRKVQEAMIZSS-AATRIKPKSA-N diethyl fumarate Chemical compound CCOC(=O)\C=C\C(=O)OCC IEPRKVQEAMIZSS-AATRIKPKSA-N 0.000 description 1
- 229940105990 diglycerin Drugs 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- 125000004925 dihydropyridyl group Chemical group N1(CC=CC=C1)* 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XJELOQYISYPGDX-UHFFFAOYSA-N ethenyl 2-chloroacetate Chemical compound ClCC(=O)OC=C XJELOQYISYPGDX-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- PBZROIMXDZTJDF-UHFFFAOYSA-N hepta-1,6-dien-4-one Chemical compound C=CCC(=O)CC=C PBZROIMXDZTJDF-UHFFFAOYSA-N 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 description 1
- 229960000367 inositol Drugs 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000832 lactitol Substances 0.000 description 1
- VQHSOMBJVWLPSR-JVCRWLNRSA-N lactitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-JVCRWLNRSA-N 0.000 description 1
- 235000010448 lactitol Nutrition 0.000 description 1
- 229960003451 lactitol Drugs 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000845 maltitol Substances 0.000 description 1
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 description 1
- 229940035436 maltitol Drugs 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000004597 plastic additive Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- FUSUHKVFWTUUBE-UHFFFAOYSA-N vinyl methyl ketone Natural products CC(=O)C=C FUSUHKVFWTUUBE-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K5/315—Compounds containing carbon-to-nitrogen triple bonds
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
Description
Gebiet der ErfindungField of the Invention
Die Erfindung betrifft die Verwendung von Zusammensetzungen enthaltend enthaltend mindestens einen Cyanacetylharnstoff und mindestens ein Hexafluorosilikat zur Stabilisierung von halogenhaltigen organischen Kunststoffen.The invention relates to the use of compositions containing at least one cyanoacetylurea and at least one hexafluorosilicate for stabilizing halogen-containing organic plastics.
Stand der TechnikState of the art
Halogenhaltige Kunststoffe, insbesondere PVC oder daraus hergestellte Formmassen neigen bekanntermaßen zu Abbau- beziehungsweise Zersetzungsreaktionen, wenn sie thermischer Belastung ausgesetzt sind oder mit energiereicher Strahlung, zum Beispiel Ultraviolettlicht, in Kontakt kommen. Seit langem werden daher die unterschiedlichsten Stabilisatoren eingesetzt.Halogen-containing plastics, especially PVC or molding compositions made therefrom are known to tend to degrade or decomposition reactions when exposed to thermal stress or with high-energy radiation, for example ultraviolet light, get in touch. A wide variety of stabilizers have therefore been used for a long time used.
Bekannte PVC-Stabilisatoren sind metallhaltige Substanzen auf Basis von Pb, Ba, Cd, Sn, Ca und Zn. Diese Stabilisatoren werden entweder allein eingesetzt, sehr häufig auch in Kombination mit Costabilisatoren. Typische PVC-Stabilisator-Zusammensetzungen enthalten daher sehr häufig einen Primärstabilisator, der den o. g. Pb-, Ba-, Cd-, Sn-, Ca und Zn-haltigen Substanzen zuzuordnen ist und mindestens einen weiteren Costabilisator (etwa Epoxidverbindungen, Zeolithe, Hydrotalcite, Perchlorate usw.).Known PVC stabilizers are metal-containing substances based on Pb, Ba, Cd, Sn, Ca and Zn. These stabilizers are either used alone, and very often in combination with costabilizers. Typical PVC stabilizer compositions therefore contain very often a primary stabilizer, who the above Pb, Ba, Cd, Sn, Ca and Zn-containing substances can be assigned and at least one other Costabilizer (such as epoxy compounds, zeolites, hydrotalcites, Perchlorates, etc.).
Aufgabe der vorliegenden Erfindung war es, Zusammensetzungen bereitzustellen, die sich zur Stabilisierung von halogenhaltigen organischen Kunststoffen, insbesondere PVC, gegen thermischen und/oder photochemischen Abbau eignen.Object of the present invention was to provide compositions that are useful for stabilization of halogen-containing organic plastics, in particular PVC, against thermal and / or photochemical degradation.
Gegenstand der vorliegenden Erfindung ist die Verwendung von Zusammensetzungen enthaltend mindestens einen Cyanacetylharnstoff und mindestens ein Hexafluorosilikat zur Stabilisierung von halogenhaltigen organischen Kunststoffen (insbesondere PVC) gegen thermischen und/oder photochemischen Abbau.Object of the present invention is the use of compositions containing at least one Cyanoacetyl urea and at least one hexafluorosilicate for stabilization of halogen-containing organic plastics (especially PVC) against thermal and / or photochemical degradation.
Cyanacetylharnstoffe sind durch die
Formel (I) gekennzeichnet
Als Hexafluorosilikate kommen alle Salze der Hexafluorokieselsäure (H2SiF6) in Betracht, insbesondere deren Alkali-, Ammonium- und Erdalkalisalze. Die Hexafluorosilikate können allein oder im Gemisch untereinander eingesetzt werden. Sie können als solche oder in geeigneten flüssigen Substanzen gelöst oder dispergiert eingesetzt werden.All salts of hexafluorosilicic acid (H 2 SiF 6 ) are suitable as hexafluorosilicates, in particular their alkali metal, ammonium and alkaline earth metal salts. The hexafluorosilicates can be used alone or as a mixture with one another. They can be used as such or dissolved or dispersed in suitable liquid substances.
Vorzugsweise werden die Hexafluorosilikate in Wasser – gelöst und/oder dispergiert – eingesetzt.The hexafluorosilicates are preferably used in Water - dissolved and / or dispersed - used.
Ein weiterer Erfindungsgegenstand sind Stabilisatorzusammensetzungen zur Stabilisierung von halogenhaltigen organischen Kunststoffen gegen thermischen und/oder photochemischen Abbau enthaltend mindestens einen Cyanacetylharnstoff und mindestens ein Hexafluorosilikat.Another object of the invention are stabilizer compositions for stabilizing halogen-containing organic plastics against thermal and / or photochemical Degradation containing at least one cyanoacetylurea and at least a hexafluorosilicate.
Optional können die erfindungsgemäßen Zusammensetzungen als weitere Komponenten folgende Substanzen enthalten:
- – Perchlorate = Salze der Perchlorsäure
- – Fluoralkansulfonsäuren, insbesondere alle handelsüblichen Typen dieser Substanzklasse
- – Verbindungen, die ausgewählt sind aus der Gruppe der Aminouracile, Glycidyl- Verbindungen, Beta-Diketone und Beta-Ketoester, Dihydropyridine und Polydihydropyridine, sterisch gehinderte Amine (Tetraalkylpiperidinverbindungen), Alkalialumocarbonate (Dawsonite), Alkali und Erdalkaliverbindungen, Antioxidantien, Trenn- und/oder Gleitmittel, Weichmacher, Pigmente, Füllstoffe, Phosphite, Mercaptocarbonsäureester, epoxierte Fettsäureester, UV-Absorber und Lichtschutzmittel, Treibmittel, Harnstoff, Metallseifen, Antistatika.
- - Perchlorate = salts of perchloric acid
- - Fluoroalkanesulfonic acids, in particular all commercially available types of this class of substances
- - Compounds which are selected from the group consisting of the aminouracils, glycidyl compounds, beta-diketones and beta-keto esters, dihydropyridines and polydihydropyridines, sterically hindered amines (tetraalkylpiperidine compounds), alkali metal alumocarbonates (dawsonites), alkali and alkaline earth metal compounds, antioxidants, separating and / or lubricants, plasticizers, pigments, fillers, phosphites, mercaptocarboxylic acid esters, epoxied fatty acid esters, UV absorbers and light stabilizers, blowing agents, urea, metal soaps, antistatic agents.
In einer Ausführungsform enthalten die Zusammensetzungen neben Cyanacetylharnstoff und Hexafluorosilikat als dritte Komponente ein oder mehrere Verbindungen, die ausgewählt sind aus der Gruppe der Zeolithe, kationischen Schichtgitterverbindungen (insbesondere Hydrotalcite), Calcium-Hydroxy-Aluminiumhydrogenphosphite (CHAP abgekürzt) und Katoite.In one embodiment, the compositions contain in addition to cyanoacetylurea and hexafluorosilicate as the third component one or more compounds selected from the group of Zeolites, cationic layered lattice compounds (in particular hydrotalcites), Calcium Hydroxy Aluminum Hydrogen Phosphites (CHAP for short) and Catoites.
In einer Ausführungsform enthalten die Zusammensetzungen neben Cyanacetylharnstoff und Hexafluorosilikat als dritte Komponente Calciumhydroxid. Calciumhydroxid kann dabei in jeder bekannten Form eingesetzt werden, beispielsweise als handelsüblicher gelöschter Kalk. Besonders bevorzugt ist der Einsatz eines Pulvers mit einer mittleren Korngröße im Bereich von 0,1 bis 100 μm.In one embodiment, the compositions contain in addition to cyanoacetylurea and hexafluorosilicate as the third component Calcium hydroxide. Calcium hydroxide can be in any known form are used, for example as commercially available slaked lime. Is particularly preferred the use of a powder with an average grain size in the range from 0.1 to 100 μm.
In einer Ausführungsform enthalten die Zusammensetzungen neben Cyanacetylharnstoff und Hexafluorosilikat als dritte Komponente ein oder mehrere Polyole. Polyole sind organische Verbindungen, die mindestens zwei OH-Gruppen im Molekül enthalten. Dabei kann es sich um Verbindungen handeln, die als funktionelle Gruppen ausschließlich OH-Gruppen enthalten, es können jedoch auch andere funktionelle Gruppen enthalten sein. Als Polyole eignen sich beispielsweise Pentaerythrit, Dipentaerythrit, Tripentaerythrit, Bistrimethylolpropan, Inosit, Polyvinylalkohol, Bistrimethylolethan, Trismethylolpropan, Bis-trimethylolpropan, Sorbit, Maltit, Isomaltit, Lactit, Lycasin, Mannit, Lactose, Leucrose, Tris(hydroxylethyl)isocyanurat (THEIC), Palatinit, Tetramethylolcyclohexanol, Tetramethylolcyclopentanol, Tetramethylolcyclopyranol, Glycerin, Diglycerin, Polyglycerin oder Thiodiglycerin sowie Umsetzungsprodukte dieser Polyole mit Ethylenoxid und/oder Propylenoxid. Die Polyole können allein oder in Mischung untereinander eingesetzt werden.In one embodiment, the compositions contain, in addition to cyanoacetylurea and hexafluorosilicate, one or more polyols as the third component. Polyols are organic compounds that contain at least two OH groups in the molecule. These can be connections deln that contain only OH groups as functional groups, but other functional groups can also be included. Suitable polyols are, for example, pentaerythritol, dipentaerythritol, tripentaerythritol, bistrimethylolpropane, inositol, polyvinyl alcohol, bistrimethylolethane, trismethylolpropane, bis-trimethylolpropane, sorbitol, maltitol, isomaltitol, lactitol, lycasin, mannitol, tractyl isocyanate (hydroxyl), hydroxyl (leuryl), leucrose (leucrose), leucrose Palatinit, tetramethylolcyclohexanol, tetramethylolcyclopentanol, tetramethylolcyclopyranol, glycerin, diglycerin, polyglycerin or thiodiglycerin and reaction products of these polyols with ethylene oxide and / or propylene oxide. The polyols can be used alone or as a mixture with one another.
In einer weiteren Ausführungsform sind die Zusammensetzungen frei von denjenigen aus dem Stand der Technik bekannten PVC-Primärstabilisatoren bzw. PVC-Costabilisatoren, die Pb-, Ba-, Cd-, Sn-, Ca- oder Zn-haltige Substanzen darstellen.In another embodiment the compositions are free from those of the prior art Technology known PVC primary stabilizers or PVC costabilizers, which are Pb, Ba, Cd, Sn, Ca or Zn-containing substances.
Ein weiterer Erfindungsgegenstand ist ein Verfahren zur Stabilisierung von halogenhaltigen organischen Kunststoffen, insbesondere PVC, gegen thermischen und/oder photochemischen Abbau, wobei man den Kunststoffen, ein oder mehrere Cyanacetylharnstoffe und ein oder mehrere Hexafluorosilikate zusetzt. Vorzugsweise werden die Komponenten, also das ausgerüstete PVC und die Cyanacetylharnstoffe und Hexafluorosilikate in dafür geeigneten Apparaturen innig vermischt.Another object of the invention is a process for the stabilization of halogen-containing organic Plastics, especially PVC, against thermal and / or photochemical Degradation, taking the plastics, one or more cyanoacetylureas and add one or more hexafluorosilicates. Preferably be the components, i.e. the equipped one PVC and the cyanoacetylureas and hexafluorosilicates in suitable equipment intimately mixed.
Zweckmäßig kann die Einarbeitung der erfindungsgemäßen Stabilisator-Zusammensetzungen nach folgenden Methoden erfolgen:
- – als Emulsion oder Dispersion (Eine Möglichkeit ist z. B. die Form einer pastösen Mischung. Ein Vorteil der erfindungsgemäßen Kombination besteht bei dieser Darreichungsform in der Stabilität der Paste.);
- – Als Trockenmischung während des Vermischens von Zusatzkomponenten oder Polymermischungen;
- – durch direktes Zugeben in die Verarbeitungsapparatur (z. B. Kalander, Mischer, Kneter, Extruder und dergleichen) oder
- – als Lösung oder Schmelze.
- - As an emulsion or dispersion (one possibility is, for example, the form of a pasty mixture. An advantage of the combination according to the invention in this dosage form is the stability of the paste.);
- - As a dry mix during the mixing of additional components or polymer mixtures;
- - by adding directly into the processing apparatus (e.g. calender, mixer, kneader, extruder and the like) or
- - as a solution or melt.
Ein weiterer Gegenstand der Erfindung ist PVC, enthaltend mindestens einen Cyanacetylharnstoff und mindestens ein Hexafluorosilikat. Ein derartiges stabilisiertes PVC kann auf an sich bekannte Weise hergestellt werden, wozu man unter Verwendung an sich bekannter Vorrichtungen wie der oben genannten Verarbeitungsapparaturen eine erfindungsgemäße Stabilisatorkombination sowie gewünschtenfalls weitere übliche Kunststoffadditive mit PVC vermischt.Another object of the invention is PVC, containing at least one cyanoacetylurea and at least a hexafluorosilicate. Such a stabilized PVC can in a manner known per se, for which purpose one uses devices known per se, such as the processing apparatus mentioned above a stabilizer combination according to the invention as well as if desired more usual Plastic additives mixed with PVC.
Vorzugsweise enthält das stabilisierte PVC die Cyanacetylharnstoffe in einer Menge von 0,001 bis 4 phr und insbesondere 0,01 bis 2,5 phr. Der dem Fachmann geläufige Ausdruck phr ("parts per hundred resin") gibt an, wieviele Gewichtsteile einer Komponente im PVC – bezogen auf 100 Gewichtsteile PVC – vorhanden sind. Die Hexafluorosilikate sind im stabilisierten PVC vorzugsweise in einer Menge von 0,001 bis 0,5 phr enthalten.The stabilized PVC preferably contains the Cyanoacetylureas in an amount of 0.001 to 4 phr and in particular 0.01 to 2.5 phr. The one familiar to the expert Expression phr ("parts per hundred resin ") specifies how many parts by weight of a component in PVC - related per 100 parts by weight of PVC - present are. The hexafluorosilicates are preferred in stabilized PVC in an amount of 0.001 to 0.5 phr contain.
Das nach vorliegender Erfindung stabilisierte PVC kann auf bekannte Weisen in die gewünschte Form gebracht werden. Solche Verfahren sind beispielsweise Mahlen, Kalandrieren, Extrudieren, Spritzgießen, Sintern oder Spinnen, ferner Extrusions-Blasen oder eine Verarbeitung nach dem Plastisol-Verfahren.The PVC stabilized according to the present invention can be brought into the desired shape in known ways. Such processes are, for example, grinding, calendering, extruding, injection molding, sintering or spinning, also extrusion blowing or processing according to the plastisol process.
Extrusion und Spritzguß sind dabei als Verfahren zur Verarbeitung des erfindungsgemäß stabilisierten PVC besonders bevorzugt.Extrusion and injection molding are included particularly as a method for processing the PVC stabilized according to the invention prefers.
Das erfindungsgemäß stabilisierte PVC eignet sich für Hart-, Halbhart- und Weich-Rezepturen.The PVC stabilized according to the invention is suitable for Hard, semi-hard and soft formulations.
Halogenhaltige organische KunststoffeHalogenated organic plastics
Bei den halogenhaltigen organischen Kunststoffen, die es mit den erfindungsgemäßen Stabilisator-Zusammensetzungen zu stabilisieren gilt, handelt es sich insbesondere um chlorhaltige Polymere oder deren Recyclate. Beispiele für solche zu stabilisierenden chlorhaltigen Polymere oder deren Recyclate sind: Polymere des Vinylchlorides, Vinylharze, enthaltend Vinylchlorideinheiten in deren Struktur, wie Copolymere des Vinylchlorids und Vinylester von aliphatischen Säuren, insbesondere Vinylacetat, Copolymere des Vinylchlorids mit Estern der Acryl- und Methycrylsäure und mit Acrylnitril, Copolymere des Vinylchlorids mit Dienverbindungen und ungesättigten Dicarbonsäuren oder deren Anhydride, wie Copolymere des Vinylchlorids mit Diethylmaleat, Diethylfumarat oder Maleinsäureanhydrid, nachchlorierte Polymere und Copolymere des Vinylchlorids, Copolymere des Vinylchlorids und Vinylidenchlorids mit ungesättigten Aldehyden, Ketonen und anderen, wie Acrolein, Crotonaldehyd, Vinylmethylketon, Vinylmethylether, Vinylisobutylether und ähnliche; Polymere des Vinylidenchlorids und Copolymere desselben mit Vinylchlorid und anderen polymerisierbaren Verbindungen; Polymere des Vinylchloracetates und Dichlordivinylethers; chlorierte Polymere des Vinylacetates, chlorierte polymerische Ester der Acrylsäure und der alpha-substituierten Acrylsäure; Polymere von chlorierten Styrolen, zum Beispiel Dichlorstyrol; chlorierte Polymere des Ethylens; Polymere und nachchlorierte Polymere von Chlorbutadiens und deren Copolymere mit Vinylchlorid; sowie Mischungen der genannten Polymere unter sich oder mit anderen polymerisierbaren Verbindungen.With the halogen-containing organic Plastics that it with the stabilizer compositions according to the invention to stabilize, it is especially chlorine-containing Polymers or their recyclates. Examples of such to be stabilized chlorine-containing polymers or their recyclates are: polymers of vinyl chloride, Vinyl resins containing vinyl chloride units in their structure, such as copolymers of vinyl chloride and vinyl esters of aliphatic acids, especially vinyl acetate, copolymers of vinyl chloride with esters of acrylic and methacrylic acid and with acrylonitrile, copolymers of vinyl chloride with diene compounds and unsaturated dicarboxylic acids or their anhydrides, such as copolymers of vinyl chloride with diethyl maleate, Diethyl fumarate or maleic anhydride, Post-chlorinated polymers and copolymers of vinyl chloride, copolymers of vinyl chloride and vinylidene chloride with unsaturated Aldehydes, ketones and others such as acrolein, crotonaldehyde, vinyl methyl ketone, Vinyl methyl ether, vinyl isobutyl ether and the like; Polymers of vinylidene chloride and copolymers thereof with vinyl chloride and other polymerizable Links; Polymers of vinyl chloroacetate and dichlorodivinyl ether; chlorinated polymers of vinyl acetate, chlorinated polymeric esters acrylic acid and alpha-substituted acrylic acid; Polymers of chlorinated styrenes, for example dichlorostyrene; chlorinated Polymers of ethylene; Polymers and post-chlorinated polymers from Chlorobutadiene and its copolymers with vinyl chloride; as well as mixtures of mentioned polymers among themselves or with other polymerizable Links.
Ferner sind umfaßt die Pfropfpolymerisate von PVC mit EVA, ABS und MBS. Bevorzugte Substrate sind auch Mischungen der vorstehend genannten Homo- und Copolymerisate, insbesondere Vinylchlorid-Homopolymerisate, mit anderen thermoplastischen oder/und elastomeren Polymeren, insbesondere Blends mit ABS, MBS, NBR, SAN, EVA, CPE, MBAS, PMA, PMMA, EPDM und Polyluactonen.Also included are the graft polymers of PVC with EVA, ABS and MBS. Preferred substrates are also mixtures of the homopolymers and copolymers mentioned above, in particular vinyl chloride homopolymers, with other thermoplastic or / and elastomeric polymers, in particular blends with ABS, MBS, NBR, SAN, EVA, CPE, MBAS, PMA, PMMA, EPDM and polyluactones.
Weiterhin bevorzugt sind Suspensions- und Massepolymere, sowie Emulsionspolymere.Also preferred are suspension and bulk polymers, as well as emulsion polymers.
Als chlorhaltiges Polymerisat ist Polyvinylchlorid besonders bevorzugt, insbesondere Suspensionspolymerisat und Massepolymerisat.As a chlorine-containing polymer Polyvinyl chloride is particularly preferred, in particular suspension polymer and bulk polymer.
Im Rahmen dieser Erfindung sind unter PVC auch Copolymerisate oder Pfropfpolymerisate von PVC mit polymerisierbaren Verbindungen wie Acrylnitril, Vinylacetat oder ABS zu verstehen, wobei es sich um Suspensions-, Masse- oder Emulsionspolymerisate handeln kann. Bevorzugt ist PVC Homopolymer auch in Kombination mit Polyacrylaten.Within the scope of this invention are under PVC also copolymers or graft polymers of PVC with polymerisable Understand compounds such as acrylonitrile, vinyl acetate or ABS, which are suspension, bulk or emulsion polymers can act. PVC homopolymer is also preferred in combination with polyacrylates.
Weiterhin kommen auch Recyclate chlorhaltiger Polymere in Frage, wobei es sich hierbei um die oben näher beschriebenen Polymere handelt, welche durch Verarbeitung, Gebrauch oder Lagerung eine Schädigung erfahren haben. Besonders bevorzugt ist PVC-Recyclat. In den Recyclaten können auch kleine Mengen an Fremdstoffen enthalten sein, wie z. B. Papier, Pigmente, Klebstoffe, die oft schwierig zu entfernen sind. Diese Fremdstoffe können auch aus dem Kontakt mit diversen Stoffen während des Gebrauchs oder der Aufarbeitung stammen, wie z. B. Treibstoffreste, Lackanteile, Metallspuren und Initiatorreste.Recyclates containing chlorine also come Polymers in question, these being those described in more detail above Polymers, which through processing, use or storage damage have experienced. PVC recyclate is particularly preferred. In the recyclates can also small amounts of foreign substances may be contained, such as. B. Paper, pigments, adhesives that are often difficult to remove. These foreign substances can also from contact with various substances during use or Work up come, such as. B. fuel residues, Paint proportions, traces of metal and initiator residues.
Claims (5)
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|---|---|---|---|
| DE2002130417 DE10230417A1 (en) | 2002-07-06 | 2002-07-06 | Use of compositions containing a cyanoacetylurea and a hexafluorosilicate for stabilizing halogen-containing plastics, especially PVC, against thermal and/or photochemical degradation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002130417 DE10230417A1 (en) | 2002-07-06 | 2002-07-06 | Use of compositions containing a cyanoacetylurea and a hexafluorosilicate for stabilizing halogen-containing plastics, especially PVC, against thermal and/or photochemical degradation |
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