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:
Apr. 09, 1985
Filed:
Sep. 26, 1983
Applicant:
Inventor:
Michael J Robson, Berkshire, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; C07C / ;
U.S. Cl.
CPC ...
514521 ; 2604 / ;
Abstract
A novel crystalline material consisting of a enantiomeric pair of cyhalothrin isomers in the form of the racemic mixture and having greater insecticidal activity than cyhalothrin itself is described, together with a process for obtaining the enantiomeric pair of isomers by crystallization from concentrated cyhalothrin solutions in lower alkanols or liquid alkanes.