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White polyphenylene ether composition

阅读:911发布:2022-10-23

专利汇可以提供White polyphenylene ether composition专利检索,专利查询,专利分析的服务。并且PURPOSE: To provide a composition having high whiteness and balanced various characteristics, and composed of polyphenylene ether or its copolymer, a rubbery polymer, a styrene polymer, titanium oxide, and an organic phosphite.
CONSTITUTION: The objective composition having a whiteness (W-value) of ≥89 is obtained by compounding (A) 20W60(wt)% polyphenylene ether of formula (R
1 and R
2 are 1W4C alkyl excluding tert-butyl; n is integer representing the degree of polymerization), or a copolymer composed mainly thereof, (B) 3W10% rubbery polymer, (C) 2.0W63.5% styrene polymer, (D) 13W26% titanium oxide, and (E) 0.5W2.0% organic phosphite. The polyphenylene ether of the component (A) is the one preferably having a number-average polymerization degree of 50W500 and a color index number of about 6W2.
USE: Reflecting plate for displaying element and light-emitting diode.
COPYRIGHT: (C)1983,JPO&Japio,下面是White polyphenylene ether composition专利的具体信息内容。

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