Mitsubishi Kasei Corporation

Mitsubishi Chemical Industries Limited

Mitsubishi Kasei Vinyl Company

Hisaharu Hotta

Yoshimichi Kobayashi

Yukio Tsuge

Satoru Sugino

Haluo Iizuka

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:

Expandable vinyl chloride resin composition

Urethane prepolymer and polyurethane compositions comprising the

A blocked polyisocyanurate having the formula: ##STR1## wherein each of X, Y and Z which may be the same or different, is a residue of a diisocyanate compound devoid of the isocyanate groups, each of R.sup.1, R.sup.2 and R.sup.3 which may be the same or different, is a group selected from the group consisting of C.sub.1 -C.sub.20 alkyl, alkoxyalkyl, aryl, alkaryl and aralkyl, and n is an integer of from 1 to 10.

Blocked polyisocyanurate

Growing community of inventors

Yokohama, Japan

Hisaharu Hotta