The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 1996
Filed:
Apr. 21, 1995
Applicant:
Inventors:
Lenin J Petroff, Bay City, MI (US);
Michael A Stanga, Midland, MI (US);
Joseph S Steger, Freeland, MI (US);
James D Thornsberry, Meridian, MS (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524755 ; 524375 ; 524588 ; 524862 ; 556445 ; 528 15 ; 528 31 ; 528 29 ;
Abstract
An improved process is provided for the preparation of siloxane-oxyalkylene block copolymer surfactant compositions which utilize a hydrosilylation reaction with a phenyl ether as the reaction solvent and the use of a phenyl ether as a cold blend additive. Ethylene glycol phenyl ether is the preferred reaction solvent or cold blend additive.