Liquid crystalline polyester and method for producing thereof

Abstract

The present invention provide a liquid crystalline polyester that can be used in production of a molded article having sufficient mechanical strengths in which the melted liquid crystalline polyester has sufficient fluidity in thin-walled portions when the thin-walled molded article is manufactured, and to provide a method for producing the liquid crystalline polyester. A liquid crystalline polyester obtained by copolymerizing 4-acyloxybenzoic acids (I) and 2-acyloxy-6-naphthoic acids (II) in the presence of an imidazole (V) can be used in production of a molded article in which the melted liquid crystalline polyester has sufficient fluidity in thin-walled portions when the thin-walled molded article is manufactured, and which has sufficient mechanical strengths as well, thereby completing the present invention. Further, a liquid crystalline polyester obtained by copolymerizing 4-acyloxybenzoic acids (I), 2-acyloxy-6-naphthoic acids (II), 4,4′-diacyloxybiphenyls (III) and phthalic acids (IV) in the presence of an imidazole (V) can be used in production of a molded article in which the melted liquid crystalline polyester has sufficient fluidity in thin-walled portions when the thin-walled molded article is manufactured, and which has sufficient mechanical strengths as well, thereby completing the present invention.

Dependencies are inferred from the claim text.