CONTINUOUS SHEET OF ELECTRON BEAM CROSSLINKED FOAM.

摘要

A continuous sheet of electron beam-crosslinked foam comprising 100 parts by weight of a polypropylene resin mainly comprising propylene, 5 to 40 parts by weight of a copolymer of ethylene with at least one monomer selected from the group consisting of acrylic acid, ethyl acrylate, maleic anhydride and vinyl acetate, and 10 to 80 parts by weight of another copolymer of ethylene with a C4 to C8 alpha -olefin, having a melting point of 117 to 123 DEG C and a density of 0.890 to 0.910 g/cm<3>. This foam has a gel fraction of 20 to 60 % and an expansion ratio of 5 to 40.