Abstract: Quaternary ammonium salts which act as antistatic agents for styrene polymers are coated on the expandable polymer particles in the form of an organosol. The hydrocarbon medium from the organosol is removed under vacuum and the coated polymer particles are molded.

Abstract: The evaporative casting of molten metals has been shown to produce castings having smooth surfaces without any sign of carbon deposits thereon by using a copolymer polycarbonate prepared from cyclohexene oxide, cyclopentene oxide, cycloheptene oxide, or isobutylene oxide and carbon dioxide.

Abstract: Production of novel molybdenum dioxo dialkyleneglycolate compositions, especially adapted for use as catalysts in the epoxidation of olefinic compounds with an organic hydroperoxide, by reaction of molybdenum trioxide with particular dialkylene glycol compounds at specified elevated temperatures while removing water.

Abstract: Stable microemulsion compositions are provided especially fire resistant fuel compositions comprising (a) a hydrocarbon such as diesel fuel, jet fuel, gasoline, or fuel oil; (b) water; and (c) a novel cosurfactant combination of a phenyl alcohol and an ionic or nonionic surfactant. Methods are provided for destabilization and separation of the microemulsions directly before use.

Abstract: Isobutane is dehydrogenated to isobutylene with minimal, preferably no more than 15%, loss of the fresh feed isobutane by structural isomerization or cracking, even when the dehydrogenation feed contains substantial amounts of isobutylene. The catalysts employed comprise platinum and promoting amounts of at least one of indium, neodymium, and tin on a nonacidic support, such as zinc aluminate. The reaction is carried out at a pressure of 0.14 to 2 bar, and an outlet temperature, .sup.o K, minimum residence time, sec., defined by the equationR=1.76.times.10.sup.-4 e.sup.7890/T.

Abstract: The evaporative casting of molten metals has been shown to produce castings having smooth surfaces without any sign of carbon deposits thereon by using a terpolymer polycarbonate prepared from cyclopentene oxide or cyclohexene oxide, ethylene oxide, propylene oxide, or butylene oxide, and carbon dioxide in making patterns for the lost foam casting process.

Abstract: A thermodynamically miscible polymer composition containing a copolymer having recurring units of an alkyl vinyl ether and recurring units of an N-aryl substituted maleimide and an acrylonitrile copolymer is disclosed.

Abstract: Asymmetric epoxidation of allylic alcohols using carboxylic acid treated phenethyl hydroperoxide oxidate and titanium tartrate catalyst gave optically active glycidols following an enantioselection rule opposite to that observed from the Sharpless epoxidation (U.S. Pat. No. 4,471,130). Overall yield and enantiomeric excess of the glycidol made are dependent on the amount of carboxylic acid present in the oxidate feed. This novel finding provides a direct epoxidation route to (R)-glycidol using the less expensive natural L-(+)-dialkyl tartrate ligand.

Abstract: Various flame retardant agents have been added as a coating to seed beads of vinyl aromatic polymers. The resulting products have high resistance to burning and permit the use of lower concentrations of the retardant.

Abstract: The preparation of isocyanurate foams from a recycled polyethylene terephthalate polyol modified with alkoxylated amines and alkoxylated amides is disclosed. These modified foams exhibit improved fluorocarbon solubility, and do not cause the resultant polyols to be monofunctional, but rather difunctional. The foams may be used for building, roofing and sheathing applications.

Abstract: A method for the preparation of cast or transfer molded rigid polyisocyanurate polymer composition by conveying from a mixing chamber into a mold cavity of desired configuration to react at temperatures of from about ambient to about 140.degree. C. a reaction mixture of an organic di- or polyisocyanate, a cyclic alkylene carbonate and a soluble adduct of a tertiary amine and a cyclic alkylene carbonate as catalyst.

Abstract: Moldable compositions of a polyoxazoline and a hydrogenated elastomeric block copolymer grafted with ethylenically unsaturated carbonamide are disclosed which have good physical properties and chemical resistance.

Abstract: A polymer composition which contains a polycarbonate resin, a styrenic/maleimide/cyclic anhydride terpolymer, and an ethylene/propylene/nonconjugated diene terpolymer chemically grafted with either styrene/acrylonitrile copolymer, methylmethacrylate/N-phenylmaleimide copolymer or polymethylmethacrylate is disclosed. The composition exhibits excellent impact strength properties upon molding.

Abstract: This invention relates to low cost heat exchangers of the parallel plate-type useful for recovery or dissipation of heat energy in buildings of all types, including homes, office buildings and factories, as well as for heat recovery in the chemical process, electrical power and other industries.

Abstract: Stable microemulsion fuel compositions are provided which comprise (a) a hydrocarbon fuel such as diesel fuel, jet fuel, gasoline, or fuel oil; (b) water and/or methanol; and (c) a novel cosurfactant combination of tertiary butyl alcohol and an ionic or nonionic surfactant. The compositions of the invention exhibit a high degree of phase stability even over wide variations of temperature, greatly improved salt tolerance and reduce smoke particulate and NO.sub.x emissions.

Abstract: A polymer composition which is water-absorbent upon curing comprising: (a) a copolymer containing from about 25 to about 75 mole percent recurring units of at least one .alpha.,.beta.-unsaturated monomer bearing at least one pendant unit selected from the group consisting of a carboxylic acid unit, a carboxylic acid salt unit, a carboxylic acid anhydride unit, a carboxylic acid imide unit, a carboxylic acid amide unit and a carboxylic acid ester unit and from about 75 to about 25 mole percent recurring units of a copolymerizable monomer; and, (b) a polyether derived from C.sub.2 to C.sub.10 alkylene oxides, wherein from about 20 to about 65 percent of the total pendant units introduced through the .alpha.,.beta.

Abstract: An improvement is provided in the compression molding of lignocellulosic composite articles, such as particle or flake board, in which polyisocyanate binder systems are employed, the improvement being the provision of a novel copolymeric reaction product of a functional polysiloxane and a monocarboxylic acid or metal salt thereof as release agent on the mold surfaces to give multiple release. Optionally organopolysiloxane fluid may be employed along with the copolymer as diluent.

Abstract: The acoustical performance of automotive trim panels is improved, especially with respect to noise generated by structural vibration of an automobile and synchronous vibration of the trim panel itself, by positioning a dead, vibration-damping, foam material between the automobile frame and a semi-flexible support layer of the trim panel, the trim panel also including an open-celled, flexible, airborne sound-absorbing foam layer bonded to the opposing face of the support layer, and wherein the dead foam material has a substantially lower resilience value and a substantially higher recovery rate than the open-celled foam layer.

Abstract: A moldable composition produced by incorporating a macromonomer/alkyl acrylate/glycidyl methacrylate terpolymer into a blend of polycarbonate and a styrenic copolymer is disclosed. The macromonomer/alkyl acrylate/glycidyl methacrylate terpolymer is effective in enhancing the weld-line strength of the molded composition.

Abstract: An improvement is provided in the compression molding of lignocellulosic composite articles, such as particle or flake board, in which polyisocyanate binder systems are employed, the improvement being the provision of a novel functional polysiloxane-hydroxyle substituted mono-carboxylic acid or metal salt-isocyanate terpolymer as a release agent on the mold surface or surfaces to give multiple release. Optionally, organopolysiloxane fluids may be employed along with the terpolymer release agent as a diluent.