Abstract: A method is described for the preparation of an isocyanatoorganosilane by an elevated temperature thermally induced decomposition of a carbamatoorganosilane in the gas phase preferably under ambient or reduced pressure.

Abstract: A method of preparing an active silicon/copper contact mass for the direct reaction of organic halides with silicon to make organohalosilanes by contacting a particle size distribution of silicon with a copper catalyst vapor, aerosol or a combination of vapor and aerosol. The copper catalyst aerosol can be produced by rapid nucleation of the vapor, by an exothermic reaction between copper metal and chlorine gas or by ultrasonic energy dispersion of a solution of a copper compound to a fine mist consisting of extremely fine particles 0.1 to 0.01 micron or smaller. The preferred copper catalyst is copper chloride. The small, sub-micron size copper chloride aerosol provides an efficient utilization of copper to form the active Cu-Si alloys on the silicon particles' surfaces.

Abstract: The invention relates to novel sulfur substituted norbornyl silicon compounds. Illustrated are trithianyl, dimercapto and mono-mercapto substituted norbornylsilicon compounds.

Abstract: Polysulfide aryl silanes, mercapto aryl silanes, the hydrolyzates and condensates thereof, a process for the manufacture of said silanes, and their use as coupling agents in vulcanized rubber compounds.

Abstract: This invention is concerned with the manufacture of mercapto substituted silicon compounds by the decomposition of thio ether substituted silicon compounds. Acid catalysts, such as Friedel-Craft catalysts and halides of transition metals, greatly assist this decomposition.