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:
Jun. 02, 1987
Filed:
Nov. 08, 1985
Applicant:
Inventor:
Robert L Davis, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564440 ; 564307 ; 564335 ; 564427 ; 564428 ; 564430 ; 546290 ; 548337 ; 548484 ; 548541 ;
Abstract
(Hydrocarbylthio)aromatic polyamines are prepared by reacting an aromatic polyamine, such as a diaminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of an iodide or bromide of a metal other than an alkali metal as a catalyst.
Davis, Robert. (1987). Process for preparing (hydrocarbylthio)aromatic amines (U.S. Patent No. 4670598). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4670598
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile