Abstract This invention relates to a water compatible polyamine-epoxy adduct formed by the reaction of a polyamine with a mixture of a monoepoxide and polyepoxides, the monoepoxide being added in an amount to react with about 10 to 50% of the primary amino groups in said polyamine and the polyepoxides being added in an amount to react with from about 35 to 65% of the remaining primary amino groups. This invention also contemplates a water dispersible blend resin as an amine salt and comprises a water compatible polyamine-epoxy adduct and a resin compatible polyamine-epoxy adduct wherein the water compatible polyamine-epoxy adduct is as described above and the resin compatible polyamine-epoxy adduct is formed by reacting a polyamine with an aromatic monoepoxide, said aromatic monoepoxide reacted in an amount to provide from about 0.4 to 1 equivalents epoxide per primary amino group. The invention also pertains to a two component water epoxy coating composition comprising an aqueous dispersion of a blend of a water compatible polyamine-epoxy adduct, a resin compatible-polyamine-epoxy adduct and a polyepoxide resin emulsified therewith wherein the amount of polyepoxide resin in the coating composition is such that there is from about 0.5 to 1.5 equivalents epoxide per active hydrogen equivalent.
A water dispersible polyamine-epoxy adduct formed by reacting a polyamine with a mixture of a monoepoxide and one or more polyepoxides wherein the monoepoxide is added in a proportion to react with from about 10 to 50% of the primary amine groups and the polyepoxides are added in amount to react with from about 5% to 65% of the remaining primary amine groups.
Claim 2
Dependent Claim
63 words
A water dispersible polyamine-epoxy adduct formed by reacting a polyamine with a mixture of a monoepoxide and one or more polyepoxides wherein the monoepoxide is added in a proportion to react with from about 10 to 50% of the primary amine groups and the polyepoxides are added in amount to react with from about 5% to 65% of the remaining primary amine groups.
Claim 3
Dependent Claim
25 words
The adduct of claim 1 wherein the ratio of monoepoxide to polyepoxide is from 0.5 to 2 epoxide equivalents of monoepoxide per equivalent of polyepoxide.
Claim 4
Dependent Claim
25 words
The adduct of claim 2 wherein the polyepoxide is comprised of a mixture of an aliphatic diepoxide or polyepoxide and an aromatic diepoxide or polyepoxide.
Claim 5
Dependent Claim
35 words
The adduct of claim 3 wherein the polyamine is a polyalkylene polyamine represented by the formula: H.sub.2 NR--[NHR].sub.n --NH.sub.2 where n is an integer from 0 to about 6 and R is an alkylene group.
Claim 6
Dependent Claim
36 words
The adduct of claim 2 wherein the monoepoxide is represented by a structural formula selected from the group consisting of: ##STR2## wherein R is an aliphatic group having from 4 to 18 carbon atoms or aromatic.