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. 21, 1992
Filed:
Jun. 01, 1990
Applicant:
Inventors:
Assignee:
Kali-Chemie AG, Hanover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525474 ; 528 12 ; 528 25 ; 528 33 ; 528 43 ;
Abstract
Halogenated polycarbosilanes with uniform or mixed halogenation prepared from aryl-substituted, particularly phenyl-substituted polycarbosilanes by reaction with halogenating reagents under polar or ionic reaction conditions, optionally in the presence of a Lewis acid catalyst. The halogen atom introduced can optionally subsequently be replaced by another halogen atom through a transhalogenation reaction.