Gerald A Beeler

US Patent:

6348437, Feb 19, 2002

Filed:

May 1, 1996

Appl. No.:

08/642019

Inventors:

Ragnar Richard Avery - Midland MI
Jeffrey Scott Baker - Remlock MI
Gerald Anthony Beeler - Carrollton KY
Michael Henry Brown - Prospect KY
Kevin James Okeson - Carrollton KY

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C10M10576

US Classification:

508208, 508209, 508215, 252 77, 252 783, 252 785

Abstract:

Silicone organic blends for use as lubricating oils, hydraulic fluids, dielectric fluids, coolants, and in compressor or vacuum pump applications, have improved viscosity stability when the polydispersity of the silicone fluids used in these blends, i. e. , their molecular weight distribution (M /M ), exceeds 1. 5. The viscosity rise of the silicone organic blend is less than one centistoke (mm /s) when aged 14 days in an oven at 100Â C. , compared to viscosity rises of about 1. 3 to over 3. 5 centistokes (mm /s) for commercial silicone organic blends using silicone fluids with polydispersity less than 1. 5.