Abstract: A polyurethane adhesive composition which comprises a mixture of a polyisocyanate blocked with a phenolic blocking agent and a polyamine curing agent and optionally may contain a polyepoxide is described.

Abstract: A process for preparing hydroxy phosphonic acid ester polyols by reacting an alkenyl phosphonic acid with an alkylene oxide and the reaction of the resulting hydroxy phosphonic acid ester polyols with polyisocyanates to form polyurethanes is described.

Abstract: A process for preparing novel poly(arylene ether-amide) polyols and their use in the formation of polyurethanes wherein the poly(arylene ether-amide) polyols are formed by reaction of a bicyclic amide acetal with a polyphenolic compound are described.

Abstract: The process for preparing novel compounds having the formula ##STR1## by the reaction of a bicyclic amide acetal of formula ##STR2## and an olefinically unsaturated carboxylic acid of formula ##STR3## wherein R, R', R" and R"' independently represent hydrogen, an alkyl group or an alkyl ether group having from 1 to 20 carbon atoms, an aryl group or an aryl ether group having from 6 to 12 carbon atoms is described.

Abstract: A rapid curing composition comprising a mixture of (A) a polyepoxide and an amine curing agent and (B) a novel thiocyanate salt of the reaction product of an alkylene polyamine, such as ethylene diamine, and a bicyclic amide acetal and a method for curing said composition are described.

Abstract: A process for separation of methacrylic acid from methacrylic acid-isobutyric acid mixtures involving the selective crystallization and removal of the methacrylic acid from said mixtures is decribed.

Abstract: A curable composition comprising a polyepoxide, an amine curing agent and a catalytic amount of a non-nucleophilic acid salt of an amine having the formula R(R')(R")NH.sup.+ X.sup.- wherein R, R' and R" independently represent an alkyl group having from 1 to 20 carbon atoms, an alkaryl group having from 7 to 20 carbon atoms or an oxyalkylene group having from 2 to 50 carbon atoms and wherein R' and R" independently also may represent hydrogen and R may also represent the formula [--Y--(R')(R")NH.sup.+ X.sup.- ].sub.n wherein R' and R" have the foregoing designations, Y represents an alkylene or alkylene ether group having from 2 to 50 carbon atoms and n represents an integer of from 1 to 5 is described.

Abstract: A moisture curable composition comprising a mixture of(A) a polyepxoide(B) a polyimine curing agent and(C) an amine thiocyanate salt cure accelerator,and a process for curing said composition in an atmosphere having a relative humidity of from about 20% to about 90% at a temperature in the range of from about 15.degree. C. to about 150.degree. C. are described.

Abstract: An adhesive composition which results from the mixture of two components, the first component comprising a polyepoxide and the second component comprising a finely dispersed solid salt of a polyamine and a polyphenol in a liquid adduct of a poly(alkylene oxide) polyamine and a polyphenol and the use of this non sagging, high performance adhesive in structural applications is described.

Abstract: A process for the preparation of a thermoset polymer having good adhesive properties comprising reacting a compound containing a plurality of oxazoline groups with an alkenyl phosphonic acid at a temperature of from about room temperature to about 300.degree. C. is described.

Abstract: The process for preparing hydroxy alkyl amide thio ethers by the reaction of a bicyclic amide acetal with a thiol is described.

Abstract: A rapid curing epoxy resin composition comprising a mixture of(A) A first component comprising a polyepoxide and(B) A second component comprising a mixture of the novel reaction product of(1) an ammonium salt of a non-nucleophilic acid with(2) the reaction product of(a) a bicyclic amide acetal with(b) an amine, and(3) an amine curing agent, is described.

Abstract: A solution of a non-reactive polymer in a liquid oxazoline which may include a reactive additive such as a polyisocyanate to provide solid polymers by interpolymerization of the oxazoline and reactive additive are described.

Abstract: An adhesive composition which is curable by electromagnetic induction heating when it is applied to various substrates, said adhesive comprising a mixture of(I) An epoxy resin component and(II) A hardener component and(III) From 2 to 60% by weight of (I) and (II) of an electromagnetic energy absorbing material is described.

Abstract: An adhesive composition comprising a mixture of a polyepoxide, an amine curing agent and a thiocyanate salt of a compound having the formula ##STR1## wherein R represents an alkyl group having from 1 to 20 carbon atoms, an aryl group having from 6 to 20 carbon atoms or an alkaryl group having from 7 to 20 carbon atoms, R', R" and R'" independently represent hydrogen, an alkyl group having from 1 to 10 carbon atoms or an alkyl ether group having from 1 to carbon atoms and n represents 2 or 3 is described.

Abstract: A process for producing compounds containing hydroxy alkyl amide groups by the reaction of a bicyclic amide acetal with a member selected from the group consisting of urea, biuret, thiourea, thiobiuret, alkyl substituted ureas, aryl substituted ureas, alkyl substituted thioureas, aryl substituted thioureas, alkylene ether ureas, arylene ether ureas, alkylene ether tioureas and arylene ether thioureas is disclosed.

Abstract: A process for accelerating the cure rate of a mixture comprising an epoxy resin and an amine hardener comprising including in the mixture from 0.5% to 15% by weight of a catalyst which is the reaction product of a bicyclic amide acetal and ammonium thiocyanate and curing the resulting mixture at a temperature of from about abient temperature to about 120.degree. C. is described.

Abstract: A thermally polymerizable monomer of formula: ##STR1## is prepared by reaction of maleic anhydride and a hydroxy 2-oxazoline of formula: ##STR2## wherein R independently represents hydrogen or a hydrocarbon group having from 1 to 20 carbon atoms.

Abstract: A process for preparing polyols from polycarboxylic acids by the reaction of a bicyclic amide acetal with a polycarboxylic acid is described.

Abstract: A process for forming an improved bond between surfaces of sheet molding compound (SMC) and polyurethane adhesives comprising priming the surface with a liquid epoxy resin which is 100% active wherein the epoxy resin contains at least one ultraviolet light activated cure accelerator, exposing the primed surface to ultraviolet radiation so as to cause curing of the primer, then applying the polyurethane adhesive to the primed, cured surface and curing the polyurethane adhesive.