发明名称 |
Hydroxybenzophenone stabilizer composition |
摘要 |
Synthetic resins processed at temperatures in excess of 200 DEG C. are protected against deterioration on exposure to light of wave length shorter than 400 nanometers by compounding with a stabilizer composition comprising (A) 40 to 90 parts by weight of at least one 5,5'-methylenebis(2-hydroxy-4-alkoxybenzophenone) having 1 to 18 carbon atoms in the alkoxy group, (B) 5 to 30 parts by weight of at least one 3,5'-methylenedi(2-hydroxy-4-alkoxybenzophenone) having 1 to 18 carbon atoms in the alkoxy group, (C) 5 to 40 parts by weight of at least one 3,3'-methylenebis(2-hydroxy-4-alkoxybenzophenone) having 1 to 18 carbon atoms in the alkoxy group. Synthetic resins suitably stabilized with compositions of the invention include thermoplastic polyesters such as polyhydric phenol carbonate polyesters and alkanediol terephthalate polyesters, as well as high melting polyolefins such as poly-4-methylpentene and polypropylene.
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申请公布号 |
US4169089(A) |
申请公布日期 |
1979.09.25 |
申请号 |
US19780892148 |
申请日期 |
1978.03.31 |
申请人 |
ARGUS CHEMICAL CORPORATION |
发明人 |
MINAGAWA, MOTONOBU;KUBOTA, NAOHIRO;SUGIBUCHI, KAZUO |
分类号 |
C08K5/132;(IPC1-7):C08K5/13 |
主分类号 |
C08K5/132 |
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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