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:
Nov. 27, 1990
Filed:
May. 01, 1989
Applicant:
Inventor:
Gunner E Nelson, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556465 ; 252 496 ; 252 783 ;
Abstract
A silahydrocarbon functional fliud comprising a mixture of silahydrocarbons of the formula RSiR'.sub.3, wherein the R' radicals may be alike or different, is prepared by a three step process. In the first step in a preferred embodiment, sodium, aluminum, hydrogen, and olefin (corresponding to the radical R') are reacted in the presence of a triorganoaluminum catalyst. In a second step, fresh catalyst is added and reaction is continued. In a third step, the product of the second step is reacted with a trihaloalkylsilane to produce the RSiR'.sub.3 product. Such a product satisfied the U.S. Air Force specification for silahydrocarbon base stock.