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:
Jan. 17, 1984
Filed:
Apr. 21, 1983
Applicant:
Inventors:
Jacques Kervennal, Lyons, FR;
Jean-Marie Cognion, Saint Genis Laval, FR;
Assignee:
Produits Chimiques Ugine Kuhlmann, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528210 ; 528 86 ;
Abstract
A process for the manufacture of polyurethanes by direct reaction in the liquid phase, comprising reacting, in the presence of a catalyst, carbon monoxide with a nitrated hydroxy-aromatic derivative of the formula:
Kervennal, Jacques. (1984). Process for the manufacture of polyurethanes by carbonylation of (U.S. Patent No. 4426515). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4426515
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile