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:
May. 15, 1990
Filed:
Oct. 24, 1988
Applicant:
Inventors:
William R Beard, Baton Rouge, LA (US);
Herbert M Scull, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556187 ;
Abstract
Trimethylaluminum is made by gradually feeding a methyl halide to a reaction vessel containing a tri-C.sub.2+ alkylaluminum (e.g. triethylaluminum) and a catalyst formed from a bismuth compound and an alkyl or aryl organoaluminum compound thereby forming trimethylaluminum and C.sub.2+ alkyl halide and continuously distilling the C.sub.2+ alkyl halide, and any methyl halide that fails to react, from the reaction vessel thereby avoiding the accumulation of trialkylaluminum and alkyl halide which not only tends to form alkylaluminum halides but can be very hazardous on a large scale if a temperature excursion should occur.