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. 11, 1986
Filed:
Apr. 04, 1985
Applicant:
Inventors:
Robert G Briody, Clinton, OH (US);
Henry C Stevens, Akron, OH (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568606 ; 568610 ; 568614 ; 568655 ; 568669 ; 568681 ; 570101 ; 570191 ; 570201 ;
Abstract
Organic chloroformate compounds are decomposed to their corresponding chlorides by heating the chloroformate, e.g., between 100.degree. and 175.degree. C., in the presence of a catalytic amount of solid poly(vinylpyridine), e.g., poly(4-vinylpyridine), for a time sufficient to convert the chloroformate to the corresponding chloride.