PURPOSE: To obtain the subject composition causing no bleedout with the lapse time of the silicone oil as foam stabilizer, by incorporating an olefin resin with a thermally decomposable foaming agent and a silicone oil at specified proportions.
CONSTITUTION: The objective composition can be obtained by incorporating (A) 100 pts.wt. of a resin composed of (1) 30-90wt.% of an ethylene-polar vinyl compound copolymer and (2) 10-70wt.% of an ethylene-vinyl acetate-carbon monoxide terpolymer with (B) 1-30 pts.wt. of a thermally decomposable foaming agent (pref. 100-170°C in decomposition temperature, e.g. azodicarbonamide) and (C) 0.1-5 pts.wt. of a silicone oil, serving as a foam stabilizer, of formula R3SiO-(-R2SiO)n-SiR3 [R is (substituted) monovalent hydrocarbon; n is ≥10].
KENMOTSU TAKAAKI
OKADA MITSUNORI
