| 摘要 |
PURPOSE:To obtain the title product suitable as a building use and cushion for automobile inner wall surface by irradiating an open-cell type crosslinked ethylene based resin foam obtained by heating and cooling a composition consisting of an ethylene based resin, foaming agent, organic peroxide and specific compound with ionizing radioactive rays. CONSTITUTION:A foam obtained by heating and cooling a composition consisting of (A) 100pts.wt. ethylene based resin, (B) 1-30pts.wt. foaming agent, (C) 0.2-10pts. wt. organic peroxide and (D) (i) 0.1-10pts.wt. three functional monomer and 0.1-5pts.wt. silicone oil expressed by formula I (R is monovalent hydrocarbon; k is 10-730), (ii) 0.1-5pts.wt. silicone block copolymer expressed by formula II or formula III (X is formula IV; R' is H, alkyl, etc.; P is 0 or 1; Y is formula V; m is 0-300; n is 2-10; s is 1-30; q is 1-300; t is 1-100) and (iii) 0.1-5pts.wt. polyalkylene glycol expressed by formula VI (R is H or monovalent hydrocarbon; n' is n; t' is 20-400) is irradiated with ionizing radioactive rays to provide the aimed foam. |
