Aqueous acrylic polymer dispersions

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

400/6412

C08L 33/14 (2006.01) C08F 2/20 (2006.01) C08F 2/26 (2006.01) C08F 220/32 (2006.01) C08F 246/00 (2006.01)

Patent

CA 1148289

Abstract of the Disclosure Ungelled, stable aqueous dispersions of acrylic polymers, con- taining carboxyl and epoxy functionality, and their method of preparation are disclosed. The dispersions are useful in water-based coating compositions. As long as the polymeric product remains dispersed in aqueous medium, stable, curable, one-package coating compositions result. However, when the dispersions are applied to a substrate as a film and the water evaporated, a curing reaction occurs as evidenced by the film becoming harder and more solvent resistant with the passage of time.

347460

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