Patent ID: 9120920
Filing Date: 2015-09-01
Classification: C08L,C09J

Abstract:
1. A polymer composition comprising (A) an ionomer and (B) a propylene-based polymer, wherein: the (A) ionomer contains (A1) one or two ethylene/α,β-unsaturated carboxylic acid copolymer(s) and (A2) two ethylene/α,β-unsaturated carboxylic acid/α,β-unsaturated carboxylic acid ester terpolymers; the mass of constituent units derived from the α,β-unsaturated carboxylic acid ester is from 1 to 4.5% by mass of the entire mass of the (A) ionomer; the two ethylene/α,β-unsaturated carboxylic acid/α,β-unsaturated carboxylic acid ester terpolymers have different melt flow rates (MFR) of a high MFR and a low MFR; the ratio of MFRs (high MFR/low MFR) of the two terpolymers is from 3 to 4; the high MFR is 30 g/10 min to 40 g/10 min; the (A) ionomer contains 50 to 68% by mass of the (A1) one or two ethylene/α,β-unsaturated carboxylic acid copolymer(s) based on the polymer composition; and the content of the (B) propylene-based polymer is from 5 to 15 parts by mass based on 100 parts by mass of the polymer composition.