申请人:The B.F. GOODRICH Company
公开号:EP0001561A1
公开(公告)日:1979-05-02
The compositions are formed as the reaction product, preferably in an organic solvent, of phosphorous acid or PC13 and a water-soluble carboxyl polymer. A precursor of phosphorous acid, which precursor is capable of generating phosphorous acid in aqueous solution, may be used, and preferably, the water-soluble carboxyl polymer has a relatively low molecular weight, preferably in the range from about 400 to about 6000. The molar ratio of the reactants, namely of carboxyl polymer, calculated as carboxyl groups to phosphorous acid is in the range from about 10:1 to about 1:1. The carboxyl polymer, such as polyacrylic acid, may be derived from an α,β-olefinically unsaturated monomer having a carboxyl group, or the carboxyl polymer such as an acid anhydride polymer may be derived from a monomer readily converted to one having a carboxylic acid group.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of our copending U.S. Patent Application Serial No. 835,660 filed September 22, 1977.
这些组合物是磷酸或 PC13 与水溶性羧基聚合物在有机溶剂中的反应产物。可以使用能在水溶液中生成磷酸的磷酸前体,水溶性羧基聚合物的分子量相对较低,最好在约 400 至约 6000 之间。反应物的摩尔比,即羧基聚合物的摩尔比,以羧基与磷酸计算,在约 10:1 至约 1:1 的范围内。羧基聚合物(如聚丙烯酸)可来自具有羧基的 α、β-烯烃不饱和单体,或羧基聚合物(如酸酐聚合物)可来自易于转化为具有羧基的单体。
与相关申请的对照检索
本申请是 1977 年 9 月 22 日提交的美国专利申请序列号 835,660 的部分延续。