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.

Date of Patent:
Feb. 15, 1977

Filed:

May. 02, 1975
Applicant:
Inventors:

Herbert Krohberger, Neuotting, DT;

Jurgen Burkhardt, Burghausen, DT;

Jorg Patzke, Burghausen, DT;

Assignee:

Wacker-Chemie GmbH, Munich, DT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ;
Abstract

Highly transparent or optically clear elastomers are prepared by mixing (1) a nitrogen containing compound having at least one triorganosilyl group in which at least one nitrogen atom is linked either directly to a silicon atom or via an oxygen atom, but no more than one triorganosilyl group is linked to a nitrogen atom and no more than one condensable group is linked to a silicon atom, (2) a hexaorganodisilazane, (3) silicon dioxide having a surface area of at least 50 m.sup.2 /g with (4) a highly viscous diorganopolysiloxane. The resulting composition may be cured by the addition of a curing agent to form highly transparent or optically clear elastomers.


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