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US 4,339,369 AGranted
Cationic epoxide-amine reaction products
AssigneeCelanese Corporation
InventorsDarrell D. Hicks, David A. Shimp
Life of this patent
Estimating the term…
Abstract
Tertiary amine terminated resinous compositions are prepared by reacting a molar excess of a polyepoxide compound with a dihydric phenol in a large excess of a monoamine which contains one tertiary amine group and one primary hydroxyl group. The resinous composition can be salted with an acid and can be dissolved or dispersed in water. The aqueous dispersions or solutions can be formulated into primer coatings for metal objects.
Claims27
A process for preparing a resinous composition which comprises:
- (A) reacting
- (a) a polyepoxide compound derived from a dihydric phenol and an epihalohydrin, said polyepoxide compound having a 1,2-epoxide equivalent weight of about 110 to about 250;
- (b) a dihydric phenol;
- and
- (c) a monoamine which contains one tertiary amine group and one primary hydroxyl group at a temperature of about 25.degree. C. to about 150.degree. C. for a time sufficient to react all of the epoxide groups of the polyepoxide, wherein (a), (b) and (c) are reacted in the mole ratios of X moles of (b) to X+1 moles of (a) to Y moles of (c) wherein X has a value of 1 to 5 and Y is at least 8;
- and
- (B) removing the excess monoamine by distillation.
4 more elements
A resinous composition comprising the reaction product of:
- (A) a polyepoxide compound derived from a dihydric phenol and an epihalohydrin, said polyepoxide compound having a 1,2-epoxide equivalent weight of about 110 to about 250;
- (B) a dihydric phenol;
- and
- (C) a moonoamine which contains one tertiary amine group and one primary hydroxyl group,
- wherein (A), (B) and (C) are in the mole ratios of X moles of (B) to X+1 moles of (A) to Y moles of (C) wherein X has a value of 1 to 5 and Y is at least 8.
2 more elements
Dependencies are inferred from the claim text.