| abstract |
â € MULTIPLE STAGE POLICY, METHOD FOR PREPARING A MULTIPLE STAGE POLYMER, AND, COATING COMPOSITION A multi-stage polymer comprising a first-stage and a second-stage polymer is provided as a crushing process and its preparation process. The first stage polymer is prepared from a mixture of: a) 0.1 to 50% by weight of a nonionic macromomer; b) 30 to 70% by weight of a carboxylic acid monomer Î ±, β ethylenically unsaturated and c) 30 to 70% by weight of a nonionic monomer Î ±, β ethylenically unsaturated. The polymerization units of the polymer of the second stage comprise; 10 to 70% by weight of a carboxylic acid monomer Î ±, β ethylenically unsaturated and f) 30 to 90% by weight of a nonionic monomer Î ±, β ethylenically unsaturated. |