The radiation hardenability and thermal building a bridge characteristic poly- ( caprolactone) the PU system which designates polyester poly- all as the base

摘要

This invention with radiation and thermal action regards the use for producing the polyurethane system and the holographic medium which are hardened with building a bridge. The polyurethane composition of this invention becomes, A) poriisoshianeto and B) one poly- ( caprolactone) including polyester poly- all at least, accompanying the ethylene characteristic unsaturated compound and the polymerization poly- all of 1 or more where it becomes, with the disclosure to C) radiation, free radical initiator, and E) including the optical initiator of 1 or more, the basis which reacts (the radiation hardenable basis) the chemical compound of 1 or more where it possesses, D) according to need.