LINEAR LOW DENSITY POLYETHYLENE RESIN PARTICLE, COMPOUND RESIN PARTICLE, FOAM PARTICLE, AND FOAM MOLDED BODY

摘要

PROBLEM TO BE SOLVED: To provide seed particles capable of further improving impact resistance at a high magnification without greatly decreasing heat resistance and slow-burning properties of a foam molded body.SOLUTION: Linear low density polyethylene resin particles used for seed particles when polymerizing into seeds include a mixed resin composed of a linear low density polyethylene and an ethylene copolymer in the seed particles where the linear low density polyethylene has a softening point of 115-130°C, the ethylene copolymer is a copolymer of a (meth)acrylic acid alkyl ester with ethylene and has 1-20 wt.% of a constituent derived from (meth)acrylic acid alkyl ester, and the (meth)acrylic acid alkyl ester is selected from methyl (meth)acrylate and ethyl (meth)acrylate.