Abstract: Cationic paint binders based on the reaction products of epoxide compounds with substituted carbamic acid derivatives and the use thereof in the formulation of cathodically deposited paints are described. The carbamic acid derivatives are urethanes, ureas, allophanates, and biuret compounds. Crosslinking functionality and/or protonatable groups are introduced by a suitable selection of blocking agents for the isocyanate compounds utilized. The reaction between the epoxide compounds and carbamic acid derivatives takes place in the presence of basic groups under relatively mild conditions; and, even when several carbamic acid moieties are present in a molecule, a readily soluble product is obtained.

Abstract: A method for the production of a highly water absorptive resin comprises the steps of neutralizing acrylic acid with alkali metal hydroxide to form an alkali metal acrylate; mixing the alkali metal acrylate, methacrylic acid, a polymerization initiator, and a first crosslinking agent; suspending and dispersing the mixture in an aqueous medium to for an initial mixture; polymerizing the initial mixture to produce a polymerized intermediate, and separating the moisture from the polymerized intermediate by azeotropic distillation to reduce the water content to 15-35% by weight; adding a second crosslinking agent, said second crosslinking agent having two epoxy radicals; and mixing "Syloid" of silicate, to form a highly water absorptive resin.

Abstract: Epoxy end-capped oligomers of 1,3-diolefin compounds of Formula I ##STR1## These oligomers are formed by: (a) reacting a 1,3-diolefin compound having 4 to 12 carbon atoms per molecule with a difunctional initiator comprising anionic reactive sites to form an intermediate living oligomer comprising two anionic end groups; and(b) reacting the intermediate living oligomer with a halohydrin compound to epoxidize the two anionic end groups and form the desired oligomer.The oligomers are subsequently reacted with an epoxidizing agent to form a polymer having epoxy-derived linkages at regular intervals along the chain of the polymer.

Abstract: An addition product obtained by reacting (a) a polyfunctional epoxy compound and (b) a compound having at least one functional group of OH group, SH group, COOH group and CONHNH.sub.2 group together with a tertiary amino group in the molecule, and an addition product obtained (a), (b) and (c) an organic compound having two or more active hydrogen atoms in the molecule (excluding a compound having an epoxy group or tertiary amino group) are good curing agents for epxoy resin. The curing agents are useful in formulating novel storable one-package, heat-curable epoxy resin-based compositions.

Abstract: The invention relates to a self-crosslinking heat-curable binder, in particular for electrocoating finishes, based on an organic synthetic resin which contains primary and/or secondary hydroxyl groups, esterified carboxyl groups and quaternary ammonium groups and can be diluted with water as a result of partial or complete neutralization with acids. The esterified carboxyl groups are activated in the alcohol component by a substituent which has a negative inductive effect.

Abstract: A novel lactone-modified diol useful as a soft segment component which provides a thermoplastic elastomer showing excellent performances in elastic recovery and low-temperature properties is provided. This lactone-modified diol is represented by the general formula:OH--Y.O.CO.O).sub.p (A--O).sub.l (B--O).sub.m (CO.Y.O).sub.q Hwherein Y is a bivalent residue derived by removing the ester bond from a 6- to 8-carbon saturated aliphatic lactone ring, p and q are positive numbers determined from the amount of a saturated aliphatic lactone to be reacted and p+q.gtoreq.1, A represents ##STR1## B represents --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --, and l and m are positive numbers satisfying the relationships: l+m=about 6 to 140 and l/m=10/90 to 100/0 (molar ratio),and is obtained by reacting 1 mol of a polyalkylene ether diol of the general formula:HO--A--O).sub.l (B--O).sub.m Hwith at least one mol of a 6- to 8-carbon saturated aliphatic lactone.

Abstract: Compounds containing (a) a fluoroaliphaticsulfonamido moiety, and (b) a moiety containing (1) at least two oxirane groups, (2) at least two non-terminal N-.beta.-hydroxyalkylene groups, or (3) at least one oxirane group and at least one non-terminal N-.beta.-hydroxyalkylene group. The compound is capable of being cured with a curing agent to give a cured product having excellent water resistance and oil resistance.

Abstract: 1. An epoxy resin composition is described, comprising(1) a mixture of epoxides of Components (A), (B) and (C)Component (A):20 to 60 wt % of an epoxy compound having a spiroacetal ring represented by the formula: ##STR1## Component (B): 10 to 50 wt % of a brominated epoxy resinComponent (C):10 to 50 wt % of an epoxy resin selected from the group consisting of diglycidyl ether of bisphenol A, diglycidyl ether of bisphenol F, novolac type epoxy resins and N,N,O-triglycidyl-aminophenol type epoxy resins, and(2) a hardening agent.

Abstract: A rubbery solid polymer or copolymer of a carboxylic acid glycidyl ester having a repeating unit of formula (I), repeating units of formulae (I) and (II) in which the (I)/(II) mole ratio is 50-99/50-1, repeating units of formulae (I), (II) and (III) in which the (I)/(II)/(III) mole ratio is 1-90/1-10/3-40, repeating units of formulae (I), (II) and (IV) in which the (I)/(II)/(IV) mole ratio is 35-90/1-20/not less than 5, repeating units of formulae (I) and (III) in which the (I)/(III) mole ratio is 50-97/50-3, repeating units of formulae (I), (III) and (IV) in which the (I)/(III)/(IV) mole ratio is 35-90/5-60/not less than 5, or repeating units of formulae (I), (II), (III) and (IV) in which the (I)/(II)/(III)/(IV) mole ratio is 35-85/3-10/3-55/not less than 5 ##STR1## wherein R represents a saturated alkyl group having 1 to 4 carbon atoms, ##STR2## wherein X represents a halogen atom, ##STR3## wherein R.sup.1 represents H or CH.sub.3 ; and a curable composition thereof.

Abstract: The present invention is directed to an improved process for preparing higher molecular weight polyepoxides from lower molecular weight polyepoxides which comprises reacting (1) a lower molecular weight polyepoxide, (2) a polyhydric compound, (3) an etherification catalyst and (4) dimethylol propionic acid.

Abstract: Molding materials, laminates, stratified material and cover or protective layers which are of high electrical and mechanical quality are formed from polymerisable epoxy compounds if the corss-linking of the epoxy resins is accomplished by anionic polymerisation, using mixed catalysts of tertiary amines of the formula: ##STR1## and an imidazoles of the formula: ##STR2## as a polymerisation catalysts.

Abstract: Resin compositions are prepared by reacting an epoxy resin with an amine-substituted aromatic sulfonic acid amide at a temperature up to about 130.degree. C. The resultant product can be cured by heating to a temperature of at least about 150.degree. C. in the presence of suitable curing agents and in some instances in the absence of any curing agent.

Abstract: A novel diepoxide curing agent is revealed. The curing agent comprises a mixture of an imidazole compound and a selected polyoxyalkylenepolyamine.This curative produces an epoxy resin of low viscosity with a prolonged pot life. They find particular usefulness in filament winding and pultrusion processes where they are used to fabricate articles of considerable strength.

Abstract: Curable synthetic resin mixtures, useful as surface coatings, are prepared by the reaction of solid or liquid epoxy resins with curing agents in turn prepared by the reaction of epichlorohydrin with a cycloaliphatic diprimary diamine in a molor ratio between 1:>1 to 1:2.

Abstract: An epoxy resin composition is disclosed. The composition comprises a polyepoxide and a curing amount of a bis(hydrogen maleate) derivative of a polyoxypropylenediamine. This composition when cured produces unexpectedly superior encapsulations which are more flexible and less brittle than those of the prior art.

Abstract: The disclosure relates to a novel compound 4,4'-methylene-bis-(2-ethyl-5-methyl imidazole) represented by the structural formula ##STR1## A method is provided for producing the novel compound subjecting formaldehyde or a methylenizing agent to thermal reaction with 2-ethyl-4-methyl imidazole in the presence of a catalyst; and a method of curing an epoxy compound and a method of accelerating curing the epoxy compound and a method of inhibiting crystallization of 2-ethyl-4-methyl imidazole, respectively by use of the new compound.

Abstract: Unwanted halogen values are removed from liquid resin, organic or hydrocarbon material by adding particulate crystalline lithium aluminate compounds to the liquid material to act as a halogen scavenger, then separating the crystalline aluminate compound from the liquid material.

Abstract: A novel composition is described comprising an admixture of an unsaturated polyimide prepolymer essentially free of terminal amine groups and an epoxy resin having a homopolymerization temperature that is greater than the temperature at which the polyimide polymerizes. These compositions maintain the superior glass transition temperatures and moisture resistance of the polyimide while picking up the desirable handling properties of the epoxy. These compositions have excellent high temperature and moisture resistant properties and excellent storage stability. For instance, carbon composites made with these materials have exhibited 60% shear property retention at 450.degree. F. after being boiled in water for one week. Also described are prepregs comprising the novel composition, methods for curing the novel composition to obtain the superior properties, and articles of manufacture comprising the novel composition.

Abstract: The disclosure of this application is directed to unsaturated polyester compositions, containing as a low-profile additive a carboxyl containing thermoplastic polymer of a vinyl ester of an aliphatic, saturated monocarboxylic acid, which have particular utility in molding applications to form aesthetically attractive thermoset articles characterized by excellent physical properties, as for example, impact strength and by excellent surface properties such as excellent smoothness and gloss, excellent receptiveness to paints and excellent reproduction of the surface contours of the mold in which they are formed into shaped, thermoset articles.

Abstract: Epoxy resins having improved properties are prepared by reacting an epoxy resin with a dihydric phenol in the presence of a sufficient quantity of a phosphonium catalyst such that the product resulting from reacting a mixture of the catalyst, epoxy resin and dihydric phenol has a % epoxide difference from the theoretical percent epoxide of from about 0.5 to about 4.0.