Thermosetting acrylic enamel containing iron pyrophosphate

Details Thermosetting acrylic enamel containing iron pyrophosphate Thermosetting acrylic enamel containing iron pyrophosphate

C - Chemistry, Metallurgy

08

L

400/1319, 117/18

C08L 33/00 (2006.01) C08L 1/14 (2006.01) C08L 61/28 (2006.01) C09D 133/06 (2006.01)

Patent

CA 1090024

ABSTRACT OF THE DISCLOSURE An improved thermosetting acrylic enamel contain- ing a film-forming polymer blend of (1) an acrylic polymer containing reactive carboxyl and hydroxyl groups, (2) cellulose acetate butyrate having a 1-6 second viscosity, and (3) a melamine formaldehyde resin at least partially alkylated with an aliphatic monohydric alcohol; the improvement used in combination with the above comprises 0.05-10% by weight, based on the weight of the polymer blend, of iron pyrophosphate powder; this enamel forms a high quality finish on automobiles and trucks and the iron pyrophosphate provides improved gloss retention, and improved blister and darkening resistance under high temperature and humidity conditions.

279592

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