METHOD FOR PRODUCING FOAMED ARTICLE FROM POLYPROPYLENE

摘要

A method of producing a foamed article having a uniform cellular structure using a modified polypropylene produced by irradiating polypropylene with an ionizing radiation of from 0.1 to 5.0 megarad and graft-copolymerizing the irradiated polypropylene with from 0.5 - 6 percent by weight divinyl benzene or with from 0.5 - 6 percent by weight of divinyl benzene and not more than 10 percent by weight of an acrylic acid ester.