Patent ID: 7666966

Claim:
A method for manufacturing a post-crosslinkable thermoplastic resin comprising polymerizing a polymerizable composition (A) which comprises a monomer solution containing 10 wt % or more, based on the total amount of monomers, of a cycloolefin (α) which has two or more metathesis ring-opening reaction sites in the molecule, a metathesis polymerization catalyst, and a chain transfer agent by bulk polymerization, wherein the maximum temperature during the bulk polymerization is less than 230° C., and wherein the thermoplastic resin is (i) molded into a film by polymerizing the polymerizable composition (A) on a supporting body by the bulk polymerization, or (ii) molded into a prescribed form by polymerizing the polymerizable composition (A) in a mold by the bulk polymerization, or (iii) obtained by impregnating a textile material with the polymerizable composition (A) and polymerizing the polymerizable composition (A) by bulk polymerization.