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. 20, 1979
Filed:
Dec. 04, 1978
Applicant:
Inventors:
Gunther Maahs, Marl, DE;
Konrad Rombusch, Marl, DE;
Assignee:
Chemische Werke Huls, A.G., Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Pentachlorovinylacetyl chloride is prepared by chlorinating tetrachlorocyclobutenone with a chlorinating agent such as (a) Cl.sub.2, optionally in the presence of additives, e.g., phosphorous pentachloride, antimony pentachloride, or oxides, hydroxides or carbonates of metals such as alkali or alkaline earth metals; or (b) phosphorous pentachloride.