| abstract |
A formaldehyde-free aqueous binder comprisingA) 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 groups can form an anhydride group, andB) an alkanolamine having at least two hydroxyl groups,is useful as binder for renewable raw materials in the form of fibers or chips to produce shaped articles. |