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:
Aug. 08, 1995
Filed:
Nov. 03, 1994
Masaki Takeuchi, Niigata, JP;
Akira Yamamoto, Niigata, JP;
Mikio Endo, Niigata, JP;
Tohru Kubota, Niigata, JP;
Yasufumi Kubota, Niigata, JP;
Shin-Etsu Chemical Company, Limited, Tokyo, JP;
Abstract
Dimethylchlorosilane and a triorganochlorosilane of the formula: R.sup.1 R.sup.2 R.sup.3 SiCl wherein R.sup.1, R.sup.2, and R.sup.3 are independently selected from monovalent hydrocarbon groups are concurrently prepared by reacting dimethyldichlorosilane with a SiH bond-containing silane compound of the formula: R.sup.1 R.sup.2 R.sup.3 SiH in the presence of a Lewis acid catalyst. The method is especially effective for concomitant preparation of dimethylchlorosilane and trimethylchlorosilane or t-butyldimethylchlorosilane in an inexpensive, simple, safe manner and in high yields.