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POLYOLEFIN-BASED RESIN PRE-EXPANDED PARTICLE, IN-MOLD FOAMED ARTICLE, PROCESS FOR PRODUCING THE POLYOLEFIN-BASED RESIN PRE-EXPANDED PARTICLE, AND PROCESS FOR PRODUCING THE IN-MOLD FOAMED ARTICLE
POLYOLEFIN-BASED RESIN PRE-EXPANDED PARTICLE, IN-MOLD FOAMED ARTICLE, PROCESS FOR PRODUCING THE POLYOLEFIN-BASED RESIN PRE-EXPANDED PARTICLE, AND PROCESS FOR PRODUCING THE IN-MOLD FOAMED ARTICLE
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机译:聚烯烃基树脂预膨胀颗粒,模内发泡制品,生产方法,聚烯烃模制泡沫制品,模内发泡制品的生产过程
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摘要
A polyolefin-based resin pre-expanded particle includes a polyolefin-based resin; an organic phosphorus-containing compound being nitrogen-free; and a hindered amine having an OR group substituted directly on an N-atom where R is a saturated or unsaturated hydrocarbyl group, wherein the organic phosphorus-containing compound is at least one selected from the group consisting of alkyl phosphonic acid, an ester of the alkyl phosphonic acid, aryl phosphonic acid, an ester of the aryl phosphonic acid, a cyclic phosphonate, and a cyclic bisphosphonate, the polyolefin-based resin pre-expanded particle comprises from 1.0% by weight to 10% by weight of the organic phosphorus-containing compound and from 0.1% by weight to 5.0% by weight of the hindered amine, and the weight ratio of the organic phosphorus-containing compound to the hindered amine is from 1.0 to 20.
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