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:
Dec. 24, 1991
Filed:
May. 08, 1991
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556435 ;
Abstract
A novel and improved method for simultaneously producing 2,4,6-trisilaheptane of the following formula (I) and 1,3-disilabutane of the following formula (II), which are the starting material essential for forming silicon polymers: wherein, R is methyl group or chloro group. ##STR1## The method is characterized by reacting silicon and chloromethylsilanes of the following formula (III) at 250.degree. C.-350.degree. C. and in the presence of copper as a catalyst, exclusively or together with cadmium powder as a co-catalyst. ##STR2##