Abstract: A process for the organooxylation of .beta.-cyanoalkylchlorosilanes. The process comprises contacting in a film a .beta.-cyanoalkylchlorosilane with an alcohol capable of forming an ester with the silicon of the .beta.-cyanoalkylchlorosilane and thereby forming an equilibrium mixture comprising a (.beta.-cyanoalkyl)organooxysilane and hydrogen chloride. The film is heated at a temperature sufficient to cause vaporization of the hydrogen chloride from the equilibrium mixture thereby increasing yield of (.beta.-cyanoalkyl)organooxysilane in the equilibrium mixture. In a preferred process, the process is run in a falling-film type reactor or a wiped-film type reactor.

Abstract: A composition which is an anhydrous organic solvent free mixture of a hydrolyzable silane monomer; silanols formed by hydrolysis of the silane monomer; alkoxy functional oligomers formed by condensation of the silanols such as dimers and trimers; and higher alkoxy functional oligomers such as tetramers. Methods of making and using the composition are described.