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:
Feb. 20, 2001
Filed:
Apr. 16, 1999
Applicant:
Inventor:
John Anthony Hyatt, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
Disclosed is a process for the preparation and recovery of cyclopropylacetonitrile by a novel combination of process steps beginning with a mixture of cyclopropylmethyl halide, a cyclobutyl halide and a 4-halo-1-butene. The process permits the recovery of substantially pure cyclopropylacetonitrile and cyclobutyl halide, e.g., cyclopropylacetonitrile and cyclobutyl halide each having a purity greater than about 95%.