C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
117/195, 400/740
C08G 18/78 (2006.01) C08G 18/62 (2006.01)
Patent
CA 1234441
ABSTRACT OF THE DISCLOSURE A coating composition useful as a putty, primer surfacer or primer for the finishing or repair of automobile or truck bodies; the composition contains pigments and a binder of (1) an acrylic polymer having a backbone of polymerized styrene, hydroxy alkyl acrylate or methacrylate and side chains containing glycidyl ester groups and (2) a polyisocyanate preferably of a biuret of hexamethylene diisocyanate and the composition contains a corrosion inhibiting pigment such as basic zinc phosphate. The composition can be applied by conventional techniques to painted, primed or unprimed metal substrates, plastic substrates and resin reinforced fiberglass substrates; the composition has excellent adherence to these substrates and provides a surface to which conventional ambient temperature curing acrylic or alkyd resin enamels will adhere.
428353
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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