Patent ID: 8603631

Claim:
A formaldehyde free binder composition, comprising: a reaction product of a polyacid component having acid groups, or anhydride or salt derivatives thereof with a plurality of polymeric polyhydroxyl components, wherein: i) the polyacid component and the plurality of polyhydroxyl components have an alkaline pH, ii) the ratio of the number of molar equivalents of acid groups, or anhydride or salt derivatives thereof, present on the polyacid component to the total number of molar equivalents of hydroxyl groups present on the plurality of polyhydroxy components is in the range from about 0.7:1 to about 1.3:1, iii) the polyacid component is selected from the group consisting of a dicarboxylic acid, tricarboxylic acid, tetracarboxylic acid, pentacarboxylic acid, salts and anhydride derivatives thereof, and combinations thereof, iv) the polymeric polyhydroxyl component is selected from the group consisting of partially hydrolyzed polyvinyl acetates, fully hydrolyzed polyvinyl acetates, and mixtures thereof, and v) the binder composition comprises one or more additives that increase the fluidity of the binder composition.