Aqueous cross-linkable polymer composition for use in coatings

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 33/24 (2006.01) C08L 33/14 (2006.01) C08L 79/02 (2006.01) C08L 79/04 (2006.01) C08L 101/06 (2006.01) C09D 133/14 (2006.01) C09D 133/24 (2006.01) C09D 179/02 (2006.01) C09D 201/06 (2006.01)

Patent

CA 2283373

The invention pertains to an aqueous cross-linkable polymer composition comprising: a) a first polymer, which comprises acid groups and is made water-soluble by the addition of a volatile base; b) a dispersion of a second polymer, which comprises carbonyl-functional groups and which is water-insoluble and obtainable by emulsion polymerization in the presence of an aqueous solution of the first polymer; c) a cross-linking agent which can react by condensation with the carbonyl-functional groups of the second polymer; and d) a third polymer, which is water-soluble and has an amine functionality. The invention also pertains to a process for preparing such an aqueous polymer composition.

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