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US 4,730,033 AGranted
Coating compositions
AssigneeImperial Chemical Industries PLC
InventorsSusan M. Horley, Auguste L. L. Palluel, Philip L. Taylor
Life of this patent
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Abstract
Coating compositions which are capable of curing at room temperature comprise (i) a condensation polymer in which the polymer backbone contains at least one grouping of the formula --CO--C(R).dbd.C(R)--CO--, where R is hydrogen, a halogen or an alkyl or aryl group, and (ii) a compound carrying at least three primary amine or thiol groups. The compositions are of particular interest as undercoats in the automobile refinish trade.
Claims8
A curable coating composition which comprises:
- (i) a condensation polymer in which the polymer backbone of each molecule on average contains at least one active unsaturated grouping of the formula ##STR9## where R is hydrogen, a halogen or an alkyl or aryl group, and (ii) a compound carrying at least three primary amino groups, one or more of which may be in the form of a derivative which is capable of reverting to a primary amino group under the curing conditions to which the composition is exposed.
Dependencies are inferred from the claim text.