公开(公告)号：EP3988582A1

公开(公告)日：2022-04-27

申请号：EP20831370.0

申请日：2020-06-24

申请人： Japan Polyethylene Corporation

发明人： YOSHIMOTO Keiichi ,  UEMATSU Masahiro ,  YASUDA Kaoru

IPC分类号： C08F8/42 ,  C08F4/70 ,  C08F210/02 ,  C08L23/26

摘要： This is to provide a resin composition for injection molding or compression molding using an ethylene-based ionomer excellent in impact strength, heat resistance, long-term durability, etc.
This is a resin composition for injection molding or compression molding which comprises an ionomer in which, in a copolymer (P) containing a structural unit (A) derived from ethylene and/or an α-olefin having 3 to 20 carbon atoms, and a structural unit (B) derived from a monomer having a carboxyl group(s) and/or a dicarboxylic anhydride group(s) as essential constitutional units, at least a part of the carboxyl groups and/or the dicarboxylic anhydride groups in the copolymer (P) being converted into a metal-containing carboxylic acid salt(s) containing at least one kind of a metal ion(s) selected from Group 1, Group 2 or Group 12 of the periodic table, and has a phase angle δ at an absolute value G ∗ =0.1 MPa of a complex modulus of elasticity measured by a rotary rheometer of 50 degrees to 75 degrees.