发明名称 |
STABILISED POLYPROPYLENE |
摘要 |
A polypropylene composition comprises: (a) a first stabilising component consisting of 100 ppm or less based on the weight of the polypropylene of a phenolic antioxidant or a mixture of phenolic antioxidants; (b) a second stabilising component consisting of 500 to 1000 ppm based on the weight of the polypropylene of a phosphite antioxidant or a mixture of phosphite antioxidants; and optionally (c) a third stabilising component consisting of 100 ppm to 5000 ppm based on the weight of the polypropylene of a hindered amine light stabiliser or a mixture of such stabilisers. The polypropylene composition advantageously is in the form of fibres. A preferred phenolic antioxidant is 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6 dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-trione(Lowinox 1790). A preferred phosphite antioxidant is tris(2,4-di-t-butylphenyl) phosphite (Alkanox 240). A preferred optional hindered amine light stabiliser is dimethyl succinate polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine (Lowilite 62). |
申请公布号 |
WO03099918(A1) |
申请公布日期 |
2003.12.04 |
申请号 |
WO2003GB02279 |
申请日期 |
2003.05.27 |
申请人 |
GREAT LAKES CHEMICAL (EUROPE) GMBH;DE LA CRUZ, MONICA;DOUMEN, CINDY, NANCY;KECK-ANTOINE, KLAUS, HELMUT;JOHNSON, BRIAN, WILLIAM |
发明人 |
DE LA CRUZ, MONICA;DOUMEN, CINDY, NANCY;KECK-ANTOINE, KLAUS, HELMUT;JOHNSON, BRIAN, WILLIAM |
分类号 |
C08L23/12;C08K5/13;C08K5/3435;C08K5/524;C08L23/10;C08L35/00;D01F6/46 |
主分类号 |
C08L23/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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