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. 11, 1993
Filed:
May. 27, 1992
Applicant:
Inventors:
Daniel J Reed, Angleton, TX (US);
Tarver G Snedecor, Angleton, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
570228 ;
Abstract
In a process for production of vinylidene chloride by dehydrohalogenation of 1,1,2-trichloroethane using a base, improved selectively for formation of vinylidene chloride is obtained by using as the base a cyclic amine having a pK.sub.a greater than about 11 as dehydrohalogenating agent.