Aqueous Binders Based on Polybutadiene
l Patent No. U.S. 6,218,477 B1
Hüls, Marl, Germany, has patented a water-soluble or water-dispersible binder based on polybutadienes which are modified in the absence of ethylenically unsaturated graft monomer and with at least five percent by weight of an ethylenically unsaturated dicarboxylic acid or an anhydride or monoester thereof, and wherein at least 30% of the anhydride groups are present as imide groups from the reaction with an amino carboxylic acid. (W. Paulen, R.Elm, W. Frietag Dorsten, M. Ortelt, W. Sasse, K. Sokolowski)