发明名称 POLYETHYLENE RESIN FOAMED PARTICLES, POLYETHYLENE RESIN IN-MOLD FOAM MOLDED ARTICLE, AND METHOD FOR PRODUCING POLYETHYLENE RESIN FOAMED PARTICLES
摘要 Provided are (i) polyethylene resin foamed particles which are obtained by foaming polyethylene resin particles to be foamed having good productivity and a high expansion ratio and which are suppressed in reduction of cell diameters, and (ii) a polyethylene resin in-mold foam molded article obtained from the polyethylene resin foamed particles which has good surface smoothness while being reduced in surface yellowing. The polyethylene resin foamed particles (i) contain, as a base resin, a polyethylene resin composition containing, in an amount of not less than 1000 ppm to not more than 4000 ppm in total, one or more compounds selected from the group consisting of antioxidants, metal stearates, and inorganic substances and (ii) have Z-average molecular weight of not less than 40×104 to not more than 70×104, an average cell diameter of not less than 180 mum to not more than 450 mum, and an open-cell ratio of not more than 12%.
申请公布号 US2013338246(A1) 申请公布日期 2013.12.19
申请号 US201214003407 申请日期 2012.03.02
申请人 YOSHIDA TORU;KANEKA CORPORATION 发明人 YOSHIDA TORU
分类号 C08K13/02 主分类号 C08K13/02
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