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:
Oct. 28, 1980
Filed:
Mar. 02, 1979
Applicant:
Inventors:
Adolph Maschberger, Burghausen, DE;
Peter August, Seeveta, DE;
Assignee:
Wacker-Chemie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 77 ; 260 / ; 521 91 ; 521 96 ; 521 99 ; 521122 ; 521154 ; 528 24 ; 528 31 ; 528 33 ; 528901 ; 525474 ;
Abstract
Organopolysiloxane foams are prepared by heating a mixture containing (A) a diorganopolysiloxane, (B) silicon dioxide having a surface area of at least 50 m.sup.2 /g, (C) a peroxide compound, (D) at least one organosilicon compound containing at least 2 weight percent of Si-bonded hydroxyl groups and (E) at least one organopolysiloxane having Si-bonded hydrogen, to a temperature between 280.degree. and 320.degree. C. at a pressure which does not exceed the pressure of the surrounding atmosphere.