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US 5,344,897 AGranted
Liquid coating agent based on transesterified, modified epoxy resins and blocked polyamines
AssigneeHoechst Aktiengesellschaft
InventorsGerhard Brindoepke, Uwe Kubillus, Helmut Plum
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Abstract
Liquid coating agent based on a polymer containing acetoacetate groups and a polyamine in the form of the corresponding aldimine or ketimine, the polymer containing acetoacetate groups being obtained by reaction of a polyepoxide with water, an amine or a hydroxycarboxylic acid and subsequent esterification or transesterification with acetoacetic acid. These liquid coating agents are particularly suitable as binders in two-component automobile repair fillers or as two-component primers.
Claims12
Liquid coating composition comprising
- 1) a reaction product of a polyepoxide and a reactant selected from water or an amine or a hydroxycarboxylic acid, said reaction product containing less than 0.2% of epoxide groups, which reaction produce is subsequently esterified or transesterified with acetoacetic acid and
- 2) a polyamine in the form of its corresponding aldimine or ketimine.
Dependencies are inferred from the claim text.