Alkylated isoadipoguanamine-formaldehyde crosslinking resin and improved coating compositions produced therefrom
AssigneeE. I. Du Pont de Nemours and Company
InventorFrancis E. Schweitzer
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Abstract
A thermosetting synthetic crosslinking resin containing selected ethers of the reaction product of an isoadipoguanamine mixture and formaldehyde can be incorporated into a variety of coating compositions to provide finishes that are characterized by hardness, flexibility, durability, excellent adhesion, and commercially-acceptable cure temperatures.
Claims6
A thermosetting crosslinking resin mixture for use with film-forming material selected from the group consisting of acrylic resins, polyester or alkyd resins, and epoxy resins, or mixtures of these, said resin mixture consisting essentially of the reaction product of:
- (1) an isoadipoguanamine mixture consisting essentially of:
- (a) about 87-95 percent by weight, based on the weight of the isoadipoguanamine mixture, of 2-methylglutaroguanamine,
- (b) about 4-12 percent by weight, based on the weight of the isoadipoguanamine mixture, of 2-ethylsuccinoguanamine, and
- (c) about 1-2 percent by weight, based on the weight of the isoadipoguanamine mixture, of adipoguanamine;
- (2) from 3-6 moles of formaldehyde per mole of said isoadipoguanamine mixture;
- and
- (3) a stoichiometric excess of an aliphatic alcohol having 1-4 carbon atoms or of a mixture of such alcohols.
Dependencies are inferred from the claim text.