Shell Oil Comapny

Other

Kalyan Ghosh

Pen-Chung Wang

Kailash C Dangayach

Jimmy D Elmore

Gayle Edward Back

Larry S Corley

Charles J Stark

Derek Scott Kincaid

Daniel James Weinmann

Joseph Michael Hunter

Charles J Stark, Deceased

Leo Meilus

By Ann E Stark, Adminstrator

An aqueous system comprises at least one epoxy resin and a reaction product with an amine equivalent weight of at least 50 prepared by the reaction of an (A) epoxy-functional amidoamine derived from at least one epoxy resin and an amidoamine obtained via the reaction of an acid-terminated polyalkylene glycol and a diamine in an active hydrogen:epoxy groups ratio of from 1:15 to 1:350, with (B) at least one polyamine in an active amine hydrogen:epoxy groups equivalent ratio of from 2:1 to 30:1, and, optionally (C) a monoepoxide in a remaining active amine hydrogen:epoxy groups equivalent ratio of from 5:1 to 20:1.

Polyamine/epoxy-functional amidoamine product with epoxy resin

A water-dispersible curing agent for epoxy resins is prepared by the reaction of (a) an epoxy-functional compound obtained from the reaction of at least one epoxy resin and an amidoamine derived from the reaction of an acid-terminated polyalkylene glycol and a diamine in an active amine hydrogen:epoxy groups ratio of from 1:15 to 1:350, (b) at least one polyamine in an active amine hydrogen:epoxy groups ratio of from 2:1 to 30:1 which yields an amine-terminated product having an amine equivalent weight of at least 50, and, optionally, (c) a monoepoxy in a remaining active amine hydrogen:epoxy groups ratio of from 5:1 to

Epoxy-functional amidoamine reacted with excess polyamine and monoepoxy as epoxy curative

There is provided a curing agent composition, a method for making a curing agent composition, two component curable epoxy resin compositions, methods of their manufacture, and the different cured products thereof. The curing agent comprises the reaction product of a a) phenolic acid substituted with at least one carboxyl group and at least one hydrocarbyl group having at least 1 carbon atom; b) a polyepoxide compound; c) a polyamine compound having at least two primary amine groups; and d) a monoglycidyl capping agent. The curing agents contain secondary amine groups, yet are reactive enough to cure epoxy resins without the necessity for external catalysts/accelerators, at a wide range of curing temperatures and are immediately compatible with a standard diglycidyl ether of Bisphenol-A epoxy resins.

Capped ester containing epoxy amine adduct curing agents for curing epoxy resins at ambient or sub-ambient temperatures without external catalysts

There is provided a surfactant composition, a stable, self emulsifiable water borne curing agent composition, and methods for the manufacture of each, and two component water borne curable epoxy resin compositions. The surfactant composition comprises the reaction product of an a) a phenolic acid substituted with at least one carboxyl group and at least one hydrocarbyl group having at least 1 carbon atom; b) a polyepoxide compound; c) a polyamine compound having at least two primary amine groups; d) a reactive surfactant; and optionally e) a monoglycidyl, monocarboxylic acid, or monoisocyanate capping agent; wherein the reactive surfactant comprises an epoxide, a carboxylic acid or anhydrides thereof, or an isocyanate functional moeity, and a hydrophilic moiety comprising a polyoxyalkylene monool or polyol residue. The reactive surfactant comprises a compound represented by one of the following formulas: ##STR1##

Water borne capped ester containing epoxy amine adduct curing agents

An aqueous epoxy resin system suitable for coatings comprises (a) water, (b) at least one epoxy resin and (c) a curing agent prepared by (i) reacting at least one polyamine having at least 3 active amine hydrogen atoms per molecule and at least one epoxy resin in an epoxy equivalent to to polyamine mole ratio of from 0.9:1 to 1:10 to obtain an amine-terminated intermediate; (ii) reacting the amine-terminated intermediate with from 0.5 to 25 weight percent, based on the amine-terminated intermediate, of an acid-terminated polyalkylene glycol to yield an amine-terminated curing agent. The amine-terminated intermediate can be capped with a monoepoxide in an amine hydrogen to epoxy groups ratio of from about 1.5:1 to 30:1 prior to reaction with the acid-terminated polyalkylene glycol, or the amine-terminated curing agent following step (ii) can be capped with a monoepoxide in an amine hydrogen atoms to epoxy groups ratio of from about 2:1 to 30:1.

Aqueous epoxy resin system with curing agent from reacting

A water-compatible curing agent for epoxy resins is prepared by (a) reacting at least one polyamine having at least 3 active amine hydrogen atoms per molecule and at least one epoxy resin in an epoxy equivalent to polyamine mole ratio of from 0.9:1 to 1:10 to obtain an amine-terminated intermediate; (b) reacting the amine-terminated intermediate with from 0.5 to 25 weight percent, based on the amine-terminated intermediate, of an acid-terminated polyalkylene glycol to yield an amine-terminated curing agent. The amine-terminated intermediate can be capped with a monoepoxide in an amine hydrogen atoms to epoxy groups ratio of from about 1.5:1 to 30:1 prior to reaction with the acid-terminated polyalkylene glycol, or the amine-terminated curing agent produced following step (b) can be capped with a monoepoxide.

Epoxy resin curing agent-reacting acid-terminated polyalkylene glycol

There is provided a curing agent composition for epoxy resins and two component curable epoxy resin compositions. The curing agent is made by reacting at least a b) substituted aryl amidopolyamine with a c) monoglycidyl capping agent, where the substituted aryl amidopolyamine is made by reacting at least:

Epoxy resin with monoglycidyl-capped aryl amidopolyamine

An amine curing agent composition for an epoxy resin is provided having low volatility and good processability containing a) a polyamine curing agent and b) an aliphatic alcohol-alkylene oxide adduct. An epoxy resin-polyamine curing agent system containing an aliphatic alcohol-alkylene oxide adduct is also provided.

Growing community of inventors

Richmond, TX, United States of America

Kalyan Ghosh