Abstract: An elastomeric silicone finish is prepared from a silicone system comprising a blend of silanols and crosslinable silicone intermediates. The blend is applied to the desired substrate and thereafter catalyzed and cured to obtain an elastomeric finish.

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

Abstract: Silicon based liquid crystal compounds produced by the reaction of an isocyanatosilane with a Schiff base, aromatic ester, azo compound or cholesteryl compound. The liquid crystals are useful in those applications in which liquid crystals are currently used and they also have the capability of being firmly chemically bonded to certain substrates, such as glass, thus avoiding the need for hermetic sealing.

Abstract: Silyl carbamates are produced by the reaction under suitable reaction conditions of silanes bearing at least one silicon-hydrogen bond of the formula: R.sub.4-x SiH.sub.x with an ammonium carbamate of the formula: R'R"NH.sub.2.sup..sym. R'R"NCO.sub.2.sup..crclbar.. This novel route is much simpler and more direct than those previously known and provides a new classes of silyl carbamates.

Abstract: Adducts, improved polymer-polyols and improved polyurethane foams are provided. The adducts are produced by reacting suitable polyol and epoxy co-reactant to essentially eliminate all epoxy groups. The polymer-polyol is produced by polymerizing suitable ethylenically unsaturated monomer in the adduct or in the adduct forming mixture; in the later case the adduct forming reaction and the polymerization reaction occur simultaneously to produce the polymer-polyol. Polyurethane foams are produced by the usual method but employing the novel adduct or polymer-polyol of the present invention.

Abstract: Integrally blended additives, consisting of a ternary mixture of gamma methacryloxypropyl trimethoxysilane, trimethylolpropane triacrylate and a siloxaneoxyalkylene block copolymer, in the absence of dicumyl peroxide do not consistently improve the mechanical properties of mica filled polyolefins. This is especially true under "low shear" melt processing conditions e.g. employing a conventional screw design in a single barrel extruder. However, when the ternary mixture is combined with a small amount of dicumyl peroxide (neat or dissolved in vinyltrialkoxy silane) there is a consistent improvement in composite mechanical properties above that of the composites containing the ternary mixture alone and in comparison to mica filled polyolefin composites without any additive or composites containing the peroxide alone. Furthermore, thermal aging tensile strength retention is improved in mica filled polypropylene composites containing the ternary mixture combined with dicumyl peroxide.

Abstract: A platinum catalyzed addition of allylamine and N-substituted allyl amines to trialkoxysilanes or alkylalkoxysilanes is improved by running the reaction under pressure at 110.degree.-210.degree. C. and in the presence of a reaction promoter. As a result, the time and the amount of platinum catalyst required for the reaction are significantly reduced and conversion and yield of the product increased.

Abstract: Bis-(N,N-dialkylamino)alkyl ethers are produced by reacting a (N,N-dialkylamino) alkanol over a heterogeneous solid acid catalyst. The (N,N-dialkylamino) alkanol can optionally be accompanied by an inert carrier. The resulting bis-ethers are useful as catalysts in the production of polyurethanes, especially cellular polyurethanes.

Abstract: A novel branched hydrosilyl-modified polycarbosilane which can be pyrolized to obtain improved yields of silicon carbide. This novel branched hydrosilyl-modified polycarbosilane can be prepared in a one-step reaction from mixtures of silane monomers containing vinyl or halomethyl moieties with silane monomers containing hydrosilyl groups.

Abstract: A stable dispersion of a polymer in a polyol which imparts improved combustion resistance to polyurethane foams prepared therefrom wherein the polymer is a free-radical initiated copolymer containing from about 0.5 to 75 weight percent, based on the copolymer, of acrylonitrile and from about 25 to 99.5 weight percent, based on the copolymer, of at least one other polymerizible ethylenically unsaturated monomer and wherein the copolymer is characterized by a crosslinking coefficient of less than 55.

Abstract: Polymeric antioxidants comprising polyorganosiloxane backbones having joined thereto, by non-hydrolyzable linkages, aromatic antioxidant moieties.

Abstract: A new class of polymer/polyols based on the condensation polymerization of an oxalate ester and a diamine directly in a polyether polyol. The resultant polyoxamate/polyols have viscosities ranging from 1,500 to 15,000 cps. These polyoxamate/polyols are useful in the preparation of urethane elastomers and high resilience foams.

Abstract: Reaction of silylamine with a metallic carboxylate produces siloxylated organometallic compounds with M--O--Si bonds. These siloxylated organometallic compounds are useful catalysts in the preparation of urethane foams and elastomers, especially when prepared in situ with the urethane foam or elastomer reactants.

Abstract: A hydrogen bearing silyl carbamate of the general formula:HSiR.sub.n (O.sub.2 CNR'R").sub.3-nis synthesized from hydrogen bearing aminosilane and gaseous carbon dioxide. The resulting hydrogen bearing silyl carbamate is novel in the single hydrogen attached to the silyl carbamate and represents a major new compound for creating novel compositions of matter.

Abstract: A process whereby silanes of the general formula:HSi(NRR').sub.x (R").sub.3-xwherein R, R' and R" are independently an aliphatic or aromatic, substituted or unsubstituted, saturated or unsaturated hydrocarbon radical having from one to eight carbon atoms, inclusive and R and R' may also be hydrogen and where R" may also be alkoxy and where x has a value from one to three are reacted in the presence of a catalyst with alcohols in the stoichiometry of approximately one equivalent of alcohol per mole of silicon-nitrogen bond to give unexpectedly high yields of alkoxyhydridosilanes. In the reaction the silyl amine groups have been replaced by alkoxide groups without significant loss of the silicon-hydrogen group. Similar reactions in the absence of a catalyst give undesirably low yields of the corresponding alkoxy silanes and, in most cases, substantial loss of silyl hydrogen groups.

Abstract: Antifoam compositions containing high viscosity polydiorganosiloxane oils, finely divided hydrophobic solids, and siloxanepolyoxyalkylene block copolymer surfactants, which can be used per se or in the form of emulsions.

Abstract: An inorganic antimony compound that is surface modified with up to about 10 percent by weight of a polysiloxane results in a flame retardant with improved rheology, flow, storage and dispersing characteristics.

Abstract: A process whereby silanes of the general formulaHSi(NRR.sup.I).sub.x (R.sup.II).sub.3-xare reacted in the presence of a catalyst with oximes or hydroxylamines in the stoichiometry of approximately one equivalent of oxime or hydroxylamine per mole of silicon-nitrogen linkage to give unexpectedly high yields of substituted silanes.

Abstract: Polymeric dyes of the present invention have the formula: ##STR1## wherein Me represents the methyl group, x can range from 2 to 100, y can range from 20 to 300, and the ratio of x:y is at least 1:10 and is preferably from 1:5 to 1:1. The symbol L represents the divalent group which connects the chromophoric moiety and the polysiloxane moiety together by covalent bonds. L is conveniently a saturated divalent aliphatic group which connects the silicon atom to the chromophoric group by a non-hydrolyzable covalent bond. Chromo represents an aromatic chromophore which imparts color to the polymer molecule. The polmeric dyes of the present invention can be used to dye natural fibers such as silk, wool, and cotton and to color plastics such as nylon, Dynel, Acrilan, acetate, and viscore. In addition, the polymeric dyes can also be used as a food dye when water soluble groups are present (e.g., on the chromophores) to impart water solubility to the polymeric dye.

Abstract: Amino catalyst mixtures containing from 10 to 95 percent by weight of 2-diisopropylamino ethanol and from 5 to 90 percent by weight of an amine or mixture of amines selected from the group described herein has been found to be a replacement for N-ethylmorpholine in the production of polyurethane foams.