Patent ID: 6596386
Filing Date: 2003-07-22
Classification: B27N,C08K,C08L,Y10T

Abstract:
A process for producing shaped articles, which comprises combining a formaldehyde-free aqueous binder comprising:A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl group can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, with fibers or chips to form a shaped article, wherein said binder has a property of drying at 50Â° C. in 72 hours to a film from 0.3 to 1 mm in thickness and, following a subsequent 15 minute cure at 130Â° C. in air, and then aging in distilled water at 23Â° C. for 48 hours, has a gel content of above 50% by weight.