Abstract: The present invention relates to a process for preparing clear and colorless alkoxysilane monomers from the reaction of a silazane with an organic alcohol in the presence of an inorganic acid catalyst. The inorganic acid catalyst is present in a critical range from 20 parts per million (ppm) to 300 ppm. Inorganic acid catalysts used within this critical range eliminate the need for a purification step in the process.

Abstract: An improved nail lacquer which includes a film forming resin, a plasticizer and a solvent. The improvement relates to the utilization as the film forming resin of a graft copolymer which has a main backbone chain of acrylic ester monomer units and methacrylic ester monomer units. The main backbone chain has grafted thereto side chain units of carboxyl groups and side chain units of trialkoxysilyl groups. Nail coat compositions containing these film forming resins provide improved wear resistance.

Abstract: The present invention is a process for the production of selected methoxysilanes in high yield. The process involves reacting methanol with a silazane at a temperature greater than the boiling point of product methoxysilane and less than the temperature of methanol. Under these temperature conditions rapid removal of product methoxysilanes from the reaction mixture occurs minimizing undesirable reactions which can reduce yield of the process. The described process has been found useful for the production of dimethylmethoxysilane, dimethyldimethoxysilane, and methyldimethoxysilane.

Abstract: An emulsion and a mixture including water, at least one surfactant, and a polymethylalkylsiloxane. The polymethylalkylsiloxane has the formula: ##STR1## wherein R is a methyl radical, a is an integer from one to about three thousand, and b is an integer from one to about ten. Also disclosed is a method of rendering a surface repellent to water by treating the surface with an effective amount of the foregoing emulsion. The surface being treated is an organic surface, and can be a rubber surface such as wires, cables, the sidewall of a pneumatic tire, footwear, molded goods, and coated fabrics. The surface can also be a vinyl surface such as flooring, shower curtains, rain coats, automative seat upholstery, residential siding, and piping.

Abstract: Alkylpoly(polysilyl)azanes are prepared by the reaction of chlorine-containing polysilane preceramic polymers and various disilazanes. The alkylpoly(polysily)azanes may be converted to ceramic materials by pyrolysis at elevated temperatures.

Abstract: Vinyl-containing polysilanes are described wherein the vinyl groups are attached to endblocking sites of intermediate reactivity. These vinyl-containing polysilanes are prepared by reacting a halogen-endblocked polysilane with, first, a non-vinyl-containing Grignard reagent or a non-vinyl organolithium compound whereby the most reactive halogen endblocking groups are replaced; then, second, reacting the resulting polysilane with vinyl Grignard reagent or vinyllithium whereby the halogen endblocking groups of intermediate reactivity are replaced; and, third, reacting the resulting polysilane with a non-vinyl-containing Grignard reagent or a non-vinyl organolithium compound whereby the least reactive halogen endblocking groups are replaced. The vinyl-containing polysilanes can be coverted to ceramic materials, including ceramic fibers, by pyrolysis.

Abstract: This invention discloses silicone-alkyd resins and a method for their preparation which overcomes prior art problems in the manufacture of such resins. The method consists of reacting all of the components of the silicone-alkyd resin together essentially simultaneously.

Abstract: Compositions suitable for sprayable, flexible coatings for food containers are made by mixing cycloaliphatic or bisphenol-A-epichlorohydrin epoxy resins, an alkoxylated monophenylsiloxane-dimethylsiloxane copolymer and aluminum chelates of beta-dicarbonyl compounds. Optionally, the coatings can contain phenyltrialkoxysilane.

Abstract: What is disclosed is platinum catalyzed mixtures of silicon hydride and CH.sub.2 .dbd.CHSi--containing siloxanes which contain a platinum catalyst inhibitor and which may contain a reactive diluent to give prolonged resin working time and which do not give striations in the final cured resin product.

Abstract: A process is described for manufacturing containers with interior surfaces coated with a specific silicone coating that provides protection for edibles and potable beverages packaged in the containers. The containers can be fabricated from sheet metal precoated with a coating composition consisting essentially of a hydroxyl functional siloxane resin containing monomethylsiloxane units and monophenylsiloxane units, an organosilicon crosslinker with silicon-bonded alkoxy functionality, and a ketone or aldehyde solvent that facilitates the cure reaction.

Abstract: What is disclosed is platinum catalyzed mixtures of silicon hydride and CH.sub.2 .dbd.CHSi--containing siloxanes which also contain {CH.sub.2 .dbd.CH(CH.sub.3).sub.2 SiO}.sub.2 Si(C.sub.6 H.sub.5).sub.2 as a reactive diluent which give curable products having improved handling properties while retaining essential mechanical properties in the cured composition.

Abstract: Electrical devices such as transformers and capacitors containing certain silacyclopentenes as dielectric fluids are disclosed.