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:
Mar. 29, 1994
Filed:
Jun. 30, 1993
Applicant:
Inventor:
Ulrich Stewen, Schwerte, DE;
Assignee:
Witco GmbH, Bergkamen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556 82 ; 556 87 ;
Abstract
The present invention relates to a method of preparing hexaalkyl distannanes by converting bis-[trialkyltin]oxide with a stabilized solution of sodium borohydride in alcohol, preferably methanol, in the presence of an inert solvent.