申请人:UNION CARBIDE CORPORATION
公开号:EP0005858A1
公开(公告)日:1979-12-12
High molecular weight, thermally stable polyarylates are prepared directly from dihydric phenols, aromatic dibasic acids and a chlorinating agent without isolating an acyl halide intermediate. An organic phosphite can be added to reduce color formation.
This application is a Continuation-In-Part of copending Patent Application Serial No. 911,526, filed June 1, 1978.
高分子量、热稳定性聚芳酸酯可直接由二元苯酚、芳香族二元酸和氯化剂制备而成,无需分离酰卤中间体。可添加有机亚磷酸酯以减少颜色的形成。
本申请是 1978 年 6 月 1 日提交的专利申请序列号 911,526 的部分延续。