New prepolymer obtained by using di- or poly- functional organic cyanate, di- or poly- functional aromatic alcohol, di- or poly- functional aliphatic compounds and filler material, useful for the preparation of molded or layered body

摘要

Prepolymer, obtained by using at least a di- or poly- functional organic cyanate, at least a di- or poly- functional aromatic alcohol, at least a di- or poly- functional aliphatic compounds and optionally at least a filler material, where: the aliphatic residue contains at least a fluorine substituted alcohol, the molar ratio of the cyanato group to hydroxy group in the initial material is 95:5-70:30; and the resin exists in a cross-linking degree, is new. Prepolymer obtained by using at least a di- or poly- functional organic cyanate, at least a di- or poly- functional aromatic alcohol, at least a di- or poly- functional aliphatic compounds and optionally at least a filler material, where: the aliphatic residue contains at least a fluorine substituted alcohol, the molar ratio of the cynato group to hydroxy group in the initial material is 95:5-70:30; the resin exists in a cross-linking degree, which is less than the gel point; and the prepolymer is not produced from the dicyanate derivative of bisphenol A, bisphenol A or its brominated derivative, 4,4'-thiodiphenol with out any filler material, aliphatic dicyanate and diol, is new. An independent claim is included for molded or layered body, obtained by hardening the prepolymer at increased pressure and temperature.