公开(公告)号：US20160340489A1

公开(公告)日：2016-11-24

申请号：US15111969

申请日：2015-03-05

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Hiroki OOWAKI ,  Yuichi GONDOH

IPC: C08J9/18 ,  C08J9/00

CPC classification number: C08J9/18 ,  C08F255/02 ,  C08F285/00 ,  C08J9/0014 ,  C08J9/0019 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/0061 ,  C08J9/141 ,  C08J9/232 ,  C08J2203/14 ,  C08J2205/052 ,  C08J2325/06 ,  C08J2423/06 ,  C08J2423/08 ,  C08J2431/02 ,  C08J2431/04 ,  C08J2433/04 ,  C08J2433/08 ,  C08L23/06 ,  C08L25/06 ,  C08L23/0853 ,  C08F212/08

Abstract: High-density polyethylene mixed resin particles used as seed particles during seed polymerization, wherein said seed particles contain a mixed resin of 100 parts by weight of high-density polyethylene and 20 to 100 parts by weight of an ethylene copolymer; said high-density polyethylene has a density of 935 to 960 kg/m3 and a softening temperature of 115 to 130° C.; said ethylene copolymer is a copolymer of an ester-based monomer selected from an acrylic acid alkyl ester and an aliphatic saturated monocarboxylic acid vinyl, and etylene, contains 1 to 20% by weight of an ester-based monomer-derived component, and has a softening temperature of 75 to 110° C.; said acrylic acid alkyl ester is selected from methyl acrylate and ethyl acrylate; and said aliphatic saturated monocarboxylic acid vinyl is selected from vinyl acetate and vinyl propionate.

Abstract translation: 在种子聚合期间用作种子颗粒的高密度聚乙烯混合树脂颗粒，其中所述种子颗粒含有100重量份高密度聚乙烯和20至100重量份乙烯共聚物的混合树脂; 所述高密度聚乙烯的密度为935〜960kg / m 3，软化温度为115〜130℃。 所述乙烯共聚物是选自丙烯酸烷基酯和脂肪族饱和一元羧酸乙烯基的酯类单体和乙烯基的共聚物，含有1〜20重量％的酯系单体衍生成分， 软化温度为75〜110℃。 所述丙烯酸烷基酯选自丙烯酸甲酯和丙烯酸乙酯; 并且所述脂肪族饱和一元羧酸乙烯基选自乙酸乙烯酯和丙酸乙烯酯。