PURPOSE: To obtain a polyolefin resin compsn. having excellent mechanical characteristics and moldability, by mixing a polyolefin resin with a filler in the presence of a free-radical generating agent with heating, the surface of said filler being coated with a specified modified rubber.
CONSTITUTION: The surface of a filler is coated with a modified liquid rubber having at least one side chain per molecule, said side chain having one or more acidic groups and unsaturated groups. This coated filler is mixed with a polyolefin resin in the presence of a free-radical generating agent with heating. As said modified liquid rubber, there is used a modified diene rubber derived from a liquid diene rubber and having at least one side chain of the formula wherein R1 is H, halogen, a 1W3C hydrocarbon residue; R2 is a 1W20C hydrocarbon residue; R3 is H, methyl; n is 1W3; X is H or a linkage to a liquid rubber chain; Y is a linkage to a liquid rubber chain.
SUZUKI TOSHITAKE
YOSHIKAWA TOSHITSUNE
SATOU HARUYOSHI
ISHIYAMA SADAYUKI
