Abstract: The present invention relates to a process for producing an optically active aldehyde (first aldehyde) containing a reduced amount of the corresponding enantiomeric aldehyde (second aldehyde) which process comprises: (1) providing an initial solution containing a non-eutectic mixture of the first aldehyde and the second aldehyde, which mixture has a composition in the compositional region where only the first aldehyde crystallizes when its solubility limit in the solution is exceeded, and (2) maintaining the solution at a temperature above the eutectic temperature of the mixture and under conditions such that the solubility limit of the first aldehyde is exceeded so as to form a crystalline first aldehyde containing relatively less of the second aldehyde than was present in the initial solution.

Abstract: An improved Direct Reaction process which comprises reacting an organohalide with an activated silicon composition, the improvement comprising maintaining the composition of the activated silicon so that it comprises, based on the amount of silicon, 0.05-10 wt. % catalyst; an effective amount of promoter, and 0.001-0.1 wt. % tin, wherein the promoter to tin ratio is 10-250. Activated silicon compositions and methods for selecting a catalyst composition also are provided.

Abstract: Method of and apparatus for making a shaped crosslinked extruded polymeric product by extruding compacted, melted polymer, e.g., polyethylene, into a mixer formed on or fitted to the discharge end of an extruder, injecting proportionate amounts of a mixture of compounding ingredients including olefinically unsaturated hydrolyzable silane, free-radical generator and, preferably, a silanol condensation catalyst into the compacted, melted polymer. The polymer and compounding ingredients are blended in the mixer until the silane is grafted to said polymer, and the resulting grafted polymer mixed with the silanol condensation catalyst is extruded thruugh a die to form the product of the required final shape. The resulting product is subjected to the action of H.sub.2 O until the grafted polymer is crosslinked.

Abstract: A water-glycol energy transmitting fluid having a viscosity of from about 10 to about 200 centistokes at 40.degree. C. comprising:(a) from about 30 to about 40 percent by weight, based upon the total weight of the fluid, of water,(b) diethylene glycol,(c) from about 0.8 to about 5.0 percent by weight, based upon the total weight of fluid, of an aliphatic carboxylic acid having 9 to 12 carbon atoms,(d) a water-soluble polymeric viscosity control agent,(e) A corrosion inhibiting amount of at lease one corrosion inhibitor, and(f) a metal deactivator.

Abstract: This invention relates to a method of pretreatment of inorganics, such as fibers, with members of a class of N-silyl substituted 1-sila-2-azacyclopentane compounds and to a process for making composite materials therefrom. In a preferred embodiment of the instant invention, the pretreatment of fiberglass with 1,1-dimethoxy-2-(trimethoxysilyl)-1-sila-2-azacyclo-pentane is disclosed.

Abstract: Disclosed is an improved process for the emulsion polymerization of ethylenically unsaturated monomers in the presence of a polymerization is conducted in the presence of from about 0.02 to about 2.0 percent by weight of the total monomer content, of a hydrophobically modified hydroxyethylcellulose.

Abstract: The present invention is directed to a method for crosslinking reactive polyolefins using a rhodium catalyzed hydrosilation reaction and novel siloxanes as crosslinkers.Also disclosed are novel siloxane compounds which are useful in the crosslinking of polyolefins and polyolefin compositions which have been crosslinked through use of the claimed process and siloxane crosslinkers.

Abstract: Novel substituted organosilicon carboxylates characterized by the following formula: ##STR1## wherein M is a monovalent cation: Z represents a moiety hydrolyzable to silanol; R.sup.

Abstract: There is disclosed a process for producing certain epoxyorganoalkoxysilanes through the rhodium catalyzed hydrosilation of ethylenically unsaturated epoxides and alkoxysilanes in the presence of nitrogenous impurities.

Abstract: This invention relates to a novel class of N-silyl substituted 1-sila-2-azacyclopentane compounds. In a preferred embodiment of the instant invention, the novel compound 1,1-dimethoxy-2-(trimethoxysilyl)-1-sila-2-azacyclopentane is disclosed.

Abstract: A mineral-filled thermoplastic composition is disclosed which comprises polyethylene or an ethylene-vinyl acetate compolymer; a mineral filler consisting, in the case of polyethylene, of aluminum trihydrate, magnesium hydrate, calcium carbonate or calcium/magnesium carbonates, and, in the case of the ethylene-vinyl acetate copolymer, barium titanite or neodymium titanate; and, in the case of polyethylene, an impact promoter consisting of tri(2-ethylhexyl) phosphate, isostearic acid or dodecylpyridinium salts, the selection of the impact promoter being dependent upon the mineral filler being employed, and, in the case of the ethylene-vinyl acetate copolymer, an amount of isostearic acid sufficient to increase the ductility of the composition; also disclosed is an additive composition for a thermoplastic composition which comprises a hydrophobic agent and an impact promoter.

Abstract: Surfaces containing hydroxyl groups are rendered water-repellent through exposure to hydridoaminosilanes of the general formulaH.sub.x Si(NRH).sub.y (NR.sub.2.sup.1).sub.3-yIn particular, tris(dimethylamino)silane and its derivatives have been found to make substrates with hydroxyl-containing surfaces hydrophobic without adversely effecting the physical properties of the substrate being treated and without the necessity of and pre- or post-treatment steps (i.e. moisturizing, neutralizing, etc.).

Abstract: A novel organofunctional silane for use in binding agent compositions employed in foundry sands and the cores and molds made therefrom. The novel organofunctional silane is characterized in that it contains at least one sterically hindered hydrocarbon group and has attached to the silicon atom a nitrogen containing group via a carbon-silicon bond.

Abstract: This invention relates to a process for producing water-blown, flexible polyurethane foams for improved foam stability and molded water-blown, flexible polyurethane foams that are rapidly demoldable with improved green strength. The process involves the use of certain compounds ("foam modifiers") as hereinafter more specifically defined. The foam modifiers consist of an alkali metal or alkaline earth metal ion and an anion of a Bronsted acid having a pKa of greater than 1 (other than: (a) an inorganic alkaline earth metal salt that has a water solubility of less than one gram of salt per 100 milliliters of water at 25.degree. C., (b) alkali metal dihydrogen phosphate and (c) alkali metal sulphate).

Abstract: A process for the production of organic carboxylic acids by the catalytic reaction of an alcohol and, carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## in said Z group is located at least one carbon atom removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen promoter, under mild reaction conditions, wherein R' is aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R' or --H.

Abstract: Finely divided water insoluble solid particles free of ionic charges and ranging in size from about 0.01 to several hundred microns or higher, including but not limited to paint pigment particles, are given a generally uniform polymeric encapsulation by admixing such particles in an aqueous reaction medium with a water insoluble monomer polymerizable to form a generally water insoluble polymer free of ionic charges in the presence of a nonionic surface active stabilizing agent, preferably a polyethoxylated alkyl phenol containing at least about eight carbon atoms in the alkyl group thereof and preferably at least about 40-50 ethylene oxide groups per molecule, and polymerization of the monomer is then initiated, usually with heating, with a redox polymerization initiating system which is free of ionic groups and does not decompose to release ionic groups in the reaction medium.

Abstract: Described herein is a semi-continuous process for producing a polymer water-in-oil emulsion which process comprises:(a) combining: (i) an aqueous solution comprising at least one water-soluble monomer and (ii) a mixture comprising a hydrophobic liquid, a hydrophobic monomer and an oil-soluble surfactant;(b) homogenizing the mixture from (a) to form a water-in-oil emulsion;(c) deoxygenating said homogenized water-in-oil emulsion;(d) continually adding the homogenized water-in-oil emulsion to a reactor while adding thereto a deoxygenated initiator solution;(e) heating the mixture from (d) under polymerization conditions so as to form a polymer water-in-oil emulsion, and(f) recovering a polymer water-in-oil emulsion.

Abstract: Aldehyde containing hydrolyzable silane compositions of matter and a process for preparing same by hydroformylating an ethylenically unsaturated organic containing hydrolyzable silane.

Abstract: Silicon carbide can be produced by the pyrolysis of branched polycarbosilanes which in turn are produced directly from selected monomer systems.

Abstract: A method of quenching which comprises the steps of (a) immersing a metal heated to an elevated temperature in a quenchant composition comprising an aqueous-solution of a sufficiently hydrophilic water-soluble or water-dispersible organic polymer of the formula:Y[AR].sub.xto provide a solution containing .[.15.0.]. .Iadd.from about 1 to about 20 .Iaddend.