Abstract: A ruthenium-phosphine complex represented by the formula:[RuXY(BINAP)].sub.nwherein n is an integer of from 1 to about 10; and X and Y independently represent nonchelating anionic ligands.

Abstract: A process for preparing isocyanates comprising (a) contacting carbon dioxide and a primary amine in the presence of an aprotic organic solvent and an organic, nitrogenous base to produce the corresponding ammonium carbamate salt, and (b) reacting the ammonium carbamate salt with an electrophilic or oxophilic dehydrating agent to produce the corresponding isocyanate. A second embodiment comprises recovering the ammonium carbamate salt of step (a) prior to reacting the ammonium carbamate salt with an electrophilic or oxophilic dehydrating agent in the presence of an aprotic organic solvent and an organic, nitrogenous base.

Abstract: A process for the production of para-oriented dicarboxylic aromatic acids is disclosed in which an aromatic compound, having a tertiary alkyl group, is oxidized with molecular oxygen in the presence of a catalytic composition comprising a cobalt salt, a minor amount of a manganese salt, and a source of chloride in the presence of a solvent.

Abstract: Ru(BINAP) diketonate complexes manifest asymmetric hydrogenation catalytic activity with high reaction and conversion rates.

Abstract: Novel compounds represented by the formula: ##STR1## wherein R represents hydrogen, alkyl radicals having from 1 to about 10 carbon atoms, alkenyl radicals having from 1 to about 10 carbon atoms, aryl, alkaryl and aralkyl radicals having from about 6 to about 16 carbon atoms and acyl and acyloxy radicals having from about 1 to about 10 carbon atoms, manifest glycosidase inhibition activity.

Abstract: A process for preparing arylene sulfide polymers by dehydrating an aqueous mixure of a sulfur source and a cyclic organic amide to form a dehydrated mixture, contacting the dehydrated mixture with a dihaloaromatic compound to produce a polymerization mixture, polymerizing the polymerization mixture and recovering the arylene sulfide polymer wherein the process is conducted in the presence of a compound selected from the group consisting of unsubstituted aromatic hydrocarbons, alkyl-substituted aromatic hydrocarbons, alkyl ethers, aryl ethers, alkyl-aryl ethers, polyethers and saturated aliphatic hydrocarbons.

Abstract: A process for preparing poly(arylene sulfide sulfone) by contacting a dihaloaromatic sulfone, an organic amide, a sulfur-containing compound, water, and an alkali metal carboxylate, wherein the molar ratio of the alkali metal carboxylate to the sulfur-containing compound is about 0.002:1 to less than 0.05:1.

Abstract: A technique is provided for both forming frame portions from thermoplastic resin prepregs containing randomly arranged reinforcing fibers directly at predetermined location(s) upon a preformed wall portion and simultaneously bonding such as formed frame portions directly to such wall portion at such location(s). The wall portion is itself a laminate derived from thermoplastic resin prepregs containing ordered, substantially continuous reinforcing fibers.

Abstract: A process for preparing arylene sulfide polymers which comprises the steps of contacting at least one alkali metal hydroxide, water and at least one lactam to form a first mixture comprising an alkali metal aminoalkanoate, water and lactam, and subsequently contacting said first mixture with at least one sulfur source selected from the group consisting of alkali metal bisulfides, thiolactams, and hydrogen sulfide under reaction conditions of time and temperature sufficient to produce a second mixture comprising a polymerizable complex of an alkali metal aminolkanoate and the sulfur source, lactam, water and metal impurities; separating at least a portion of the metal impurities from the second mixture to form a third mixture; contacting at least one dihaloaromatic compound with the third mixture to produce a polymerization mixture; subjecting the polymerization mixture to polymerization conditions of time and temperature sufficient to produce the arylene sulfide polymer; and recovering the arylene sulfide pol

Abstract: A process for preparing poly(arylene sulfide sulfone) by contacting a dihaloaromatic sulfone, an organic amide, a sulfur-containing compound, water, and an alkali metal carboxylate, wherein the alkali metal carboxylate is prepared in-situ by contacting at least one carboxylic acid with at least one alkali metal hydroxide.

Abstract: A process for preparing a branched, high molecular weight poly(arylene sulfide ketone) by the addition of a polyhaloaromatic compound to a reaction mixture containing a dihaloaromatic ketone, an organic amide, an alkali metal sulfide, and water, and the product produced therefrom.

Abstract: A process for purifying a halogenated aromatic sulfone or ketone compound comprising contacting the compound with a solvent having a normal boiling point less than about 225.degree. C. to form a mixture, heating the mixture to a temperature above the normal boiling point of the solvent in a closed system to form a solution, cooling the solution to recrystallize the compound, and recovering the compound. A second embodiment of the invention comprises repeating the purification process steps at least once to further purify the halogenated aromatic sulfone or ketone compound.

Abstract: A process for preparing poly(arylene sulfide sulfone) by contacting a dihaloaromatic sulfone, an organic amide, a sulfur-containing compound selected from the group consisting of alkali metal bisulfides, hydrogen sulfide and N-methyl-2-pyrrolidinethione, water, and an alkali metal carboxylate.

Abstract: A process for recovering N-methyl-2-pyrrolidone from an effluent stream in a poly(arylene sulfide) process containing N-methyl-2-pyrrolidone contaminated with acidic compounds and high boiling contaminants by contacting the kettle liquid from a heavies fractionation zone with an inorganic compound selected from the group consisting of alkaline earth oxides and alkaline earth hydroxides in an amount effective to reduce the acidic compound content of the kettle liquid, and introducing the treated kettle liquid into a thin film evaporation zone to produce an overhead product containing N-methyl-2-pyrrolidone and a bottoms stream containing N-methyl-2-pyrrolidone soluble reaction products of the acidic compounds with the inorganic compound, unreacted acidic compounds and high boiling contaminants.

Abstract: A forced jet convection oven is utilized to practice a vacuum bagging process for the production of thermoplastic composite laminates containing reinforcing fiber. The oven comprises a support suitable for supporting a panel wherein said support means is positioned in the oven with the upper surface of the support means being spaced apart from the oven ceiling to define a panel-receiving chamber between the upper surface of the support means and the oven ceiling, a first manifold means having a first multiplicity of outlets directed toward the upper surface of the support means wherein said first manifold means is positioned between the upper surface of the support means and the oven ceiling; and a second manifold means having a second multiplicity of outlets directed toward the upper surface of the support means wherein said second manifold means is positioned between the upper surface of the support means and the oven floor.

Abstract: An apparatus for the control of velocity and pressure of hot gases flowing through a conduit wherein generally spherically shaped objects of refractory material are disposed within such conduit during the operation thereof to provide a constriction of the cross-sectional area of the conduit through which the gases are flowing. A particular embodiment of the apparatus employed in the present invention comprises a pair of generally spherically shaped refractory objects secured together by means of a length of flexible steel cable.

Abstract: A process, and product produced therefrom, for preparing a high molecular weight poly(arylene sulfide ketone) from the reaction product of an alkali metal bisulfide with an alkali metal hydroxide, employing molar excess of alkali metal bisulfide with respect to the alkali metal hydroxide. A process, and product produced therefrom, for preparing a high molecular weight poly(arylene sulfide ketone) employing an alkali metal sulfide and an alkali metal hydrosulfide, wherein the alkali metal .[.sulfide.]. .Iadd.hydrosulfide .Iaddend.is added in a molar excess with respect to the alkali metal .[.hydrosulfide.]. .Iadd.sulfide.Iaddend..