Patent ID: 8920595
Filing Date: 2014-12-30
Classification: C04B,C08G,C08K,C08L,C09D,C09J

Abstract:
1. A process for preparing a binder composition for organic or inorganic fibers, the process comprising: providing an aqueous solution of polycarboxylic acid polymers, wherein the polymers comprise about 10%, by wt., to 100%, by wt., of a butenedioic anhydride; adding a basic compound to the aqueous solution, wherein the basic compound is selected from a group consisting of an alkali metal hydroxide and an alkali earth metal hydroxide; hydrolyzing the butenedioic anhydride with the basic compound to form a butenedioic acid, wherein the basic compound is a catalyst for hydrolyzing the butenedioic anhydride; adding a polyol to the aqueous solution; and maintaining the pH of the aqueous solution at about 5 or more.