Precatalyzed catalyst compositions, process for preparing epoxy resins, curable compositions, articles resulting from curing the resultant compositions
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0441243A2
公开(公告)日:1991-08-14
The process of reacting an epoxy resin with a reactive hydrogen-containing compound or a carboxylic acid anhydride in the presence of a phosphonium catalyst is improved by employing a phosphonium compound having an amino substituent on the cation portion of the phosphonium compound as the catalyst. The invention also concerns precatalyzed epoxy resin compositions, curable compositions and cured compositions.