C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/5908
C08F 283/10 (2006.01) C08F 291/06 (2006.01) C08L 51/08 (2006.01) C09D 151/00 (2006.01)
Patent
CA 1297606
20731-1103 Abstract of the Disclosure Aqueous polymer dispersions based on A) 1 to 99% by weight of a carboxy-functional polymer which additionally contains epoxy groups, B) 1 to 99% by weight of a polymer obtained from at least one .alpha.,.beta.-olefinically unsaturated monomer, the polymer B) having been prepared in the presence of polymer A), C) 0 to 20% by weight of anionic or non-ionic emulsifiers or a mixture thereof or of protective colloids, the percentage by weight relating to the solids content of components A) to C), and if appropriate further conventional additives. The invention also discloses a process for the preparation of such polymer dispersions, which are particularly useful as a binder component in metallic basecoats or metal-free (uni) basecoats and electrocoatings. Compared with similar dispersions known from the prior art, the dispersions allow the formulation of rheologically controllable metallic basecoat paints which, after application, show good intercoat adhesion combined with excellent stability on storage in water.
525165
Engel Dieter
Kraft Kurt
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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