Patent ID: 8754163
Filing Date: 2014-06-17
Classification: C08F,C08L,C09D

Abstract:
1. Process for preparing a cross-linkable aqueous copolymer dispersion of a water-dilutable copolymer A, comprising the steps: 1. polymerizing by radical copolymerization 2. neutralizing the hydrophilic ionic groups of the copolymer A before and/or during dispersing or dissolving the copolymer A in an aqueous carrier, 3. dispersing or dissolving the neutralized copolymer A in an aqueous carrier, wherein the at least one additional unsaturated monomer b) is polymerized in presence of at least 20% by weight of the total amount of the reaction product a), thereby forming a copolymer A) having an acid number of at least 10 mg KOH/g solids.