Richard Duane Meindertsma

US Patent:

53747577, Dec 20, 1994

Filed:

May 10, 1994

Appl. No.:

8/240425

Inventors:

Howard M. Bank - Freeland MI
Richard D. Meindertsma - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C07F 710

US Classification:

556415

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.

US Patent:

52255107, Jul 6, 1993

Filed:

Jul 15, 1992

Appl. No.:

7/913335

Inventors:

Howard M. Bank - Freeland MI
Richard D. Meindertsma - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08G 7706

US Classification:

528 12

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.