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:
Jul. 05, 1983
Filed:
Jun. 25, 1982
Applicant:
Inventor:
Robert D Johnson, Charlotte, NC (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 66 ; 521 65 ; 521154 ;
Abstract
A method of producing silicone elastomeric sponge is disclosed. The method comprises freezing an aqueous silicone emulsion, then thawing and drying to produce a silicone sponge containing irregular closed cells. The aqueous silicone emulsion comprises water, an anionically stabilized hydroxyl endblocked polydiorganosiloxane, an organic tin compound, and a colloidal silica, the emulsion having a pH of from 9 to 11.5 inclusive. The sponge produced by the method is useful as insulation and gasketing at high and low temperatures.