Expandable vinyl chloride resin composition

摘要

An expandable vinyl chloride resin composition comprising, as main components, a vinyl chloride polymer composed mainly of vinyl chloride obtained by emulsion polymerization or fine suspension polymerization of a vinyl chloride monomer and a vinyl comonomer having a hydroxyl group or a carboxyl group, a plasticizer, a chemical blowing agent and a crosslinking agent, wherein said crosslinking agent is: (1) a combination of an alkylphenol-blocked polyisocyanate and an epsilon -caprolactam-blocked polyisocyanate, or (2) a polyisocyanate randomly blocked by an alkyl phenol and epsilon -caprolactam.