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:
Feb. 28, 1989
Filed:
Dec. 03, 1987
Applicant:
Inventor:
Roberto Bortolin, Brighton, GB;
Assignee:
Dow Corning, Ltd., Barry, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 14 ; 528 10 ; 556430 ;
Abstract
A process for preparing polysilanes of the general formula (RSi).sub.n wherein each R denotes independently an alkyl, aryl, alkaryl or aralkyl group having from 1 to 18 carbon atoms and n is at least 8, comprises reacting at least one silane of the general formula RSiX.sub.3 wherein R is as defined above and X denotes a halogen atom with an alkali metal in an organic liquid medium in which the silane is soluble, preferably tetrahydrofuran.