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:
Mar. 19, 1991
Filed:
Oct. 16, 1989
Applicant:
Inventors:
Donald T Liles, Midland, MI (US);
Carl J Bilgrien, Midland, MI (US);
Chi-long Lee, Midland, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524745 ; 524837 ;
Abstract
An aqueous, silicone emulsion of polydiorganosiloxane having silacyclobutane groups comprises the product obtained by the emulsion polymerization of a mixture of polydiorganosiloxane oligomer having hydroxyl endblocking and silacyclobutane containing silicone material. Adding a nucleophilic material to the emulsion produces an emulsion which yields an elastomer upon removal of the water from the emulsion. The elastomer from this emulsion can be reinforced by adding an aqueous, dispersed fume silica to the emulsion before removal of the water.