US 12,637,538 B2 · Coating compositions

Abstract

Disclosed is an epoxide-functional adduct (E2) and an amine-functional adduct (A3) and coating compositions including these adducts. The epoxide-functional adduct (E2) comprises a reaction product of a reaction mixture comprising (a) an epoxy-containing compound (E1) and (b) a diamine comprising a cyclic ring and/or a polyamine comprising a cyclic ring (A1). The amine-functional adduct comprises a reaction product of a reaction mixture comprising the epoxy-functional adduct (E2) and a monoamine, diamine, and/or polyamine (A2), wherein the monoamine, diamine, and/or polyamine (A2) are different than the diamine comprising a cyclic ring and/or the polyamine comprising a cyclic ring (A1). The present invention is also directed to methods of making the compositions, methods of coating a substrate, and coated substrates.

Claims11

Dependent claims

An amine-functional adduct (A3) comprising:

a second reaction product of reactants comprising:
(i) an epoxide-functional adduct (E2);
and
(ii) a first diamine (A2),
wherein the epoxide-functional adduct (E2) comprises a first reaction product of reactants comprising:
(a) an epoxy-containing compound (E1) comprising a bisphenol A, bisphenol F, and/or novolac resin;
and
(b) an aromatic diamine (A1), wherein the aromatic diamine (A1) is present in an amount sufficient to provide a molar ratio of epoxide groups from the epoxy-containing compound (E1) to amine-hydrogens from the aromatic diamine (A1) of at least 4:1 to no more than 11:1, and wherein the first diamine (A2) is different than the aromatic diamine (A1).

5 more elements

Dependencies are inferred from the claim text.

Coating compositions

Life of this patent

Coating compositions

Life of this patent

Abstract

Claims11