Coating composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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523454, 523457, 523458, 523459, 523466, 523468, 523500, 523508, 523514, 523515, 524 86, 524 88, 524 89, 524 90, 524360, 524413, 524431, 524432, 524433, 524444, 524539, C08K 534, C08K 322

Patent

active

045018294

ABSTRACT:
A coating composition comprising (A) a polyester resin modified with a lactone having 6 to 8 ring carbon atoms (I) or a mixture of said lactone-modified polyester resin (I) and a non-modified polyester resin (II), the lactone content being from 5 to 40% by weight of the total polyester resin (in solid) (I) or (I+II), the number average molecular weight being 800.about.200 mg KOH/g and wherein the resinous acid value is 2.about.20 mg KOH/g, (B) a crosslinking agent, (C) a pigment and (D) optionally other resins. The composition is useful as an intercoat paint for automobile bodies.

REFERENCES:
patent: 3691258 (1972-09-01), Riemhofer et al.
patent: 3835089 (1974-09-01), Fox et al.
patent: 4122073 (1978-10-01), Georgoudis
patent: 4169825 (1979-10-01), Yapp et al.
patent: 4276405 (1981-06-01), Koleske et al.

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