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:
Dec. 12, 2000
Filed:
May. 02, 1995
Applicant:
Inventors:
Ronald D Olinger, Lake Charles, LA (US);
Michael B Guidry, Sulphur, LA (US);
Assignee:
PPG Industries Ohio, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
570238 ;
Abstract
Monovinyl acetylene and/or butadiene are/is removed from impure vinyl chloride by contacting the impure vinyl chloride and substantially anhydrous hydrogen chloride with a catalyst system in which Lewis Acid is carried on an alumina substrate. The preferred Lewis Acid is ferric chloride.