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. 28, 1989
Filed:
May. 19, 1987
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558308 ;
Abstract
The present invention relates to a process for the continuous production of isophthalodinitrile or terephthalodinitrile by reaction in steam phase, on a fixed bed of a dehydration catalyst, of the correspondent bis(trichloromethyl)benzenes with ammonia optionally in the presence of aqueous steam.
Pontoglio, Enrico. (1989). Process for the continuous production of phtalodinitrile (U.S. Patent No. 4883893). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4883893
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile