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US4812498A Polycarbonate resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis(benzotriazolyl phenols) 失效
含有亚烷基双(苯并三唑基酚)的耐光变性的聚碳酸酯树脂组合物,

Polycarbonate resin compositions having improved resistance to
deterioration when exposed to light and containing alkylidene
bis(benzotriazolyl phenols)
摘要:
Polycarbonate resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol)having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.
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