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:
Mar. 05, 1985
Filed:
Apr. 30, 1984
Applicant:
Inventors:
Kuo-Chang Tang, New Haven, CT (US);
Phillip T Berkowitz, Woodbridge, CT (US);
Assignee:
Olin Corporation, Cheshire, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544193 ;
Abstract
A process for trimerizing organic polyisocyanates using a select catalyst comprising a quaternary ammonium carboxylic acid salt and a carboxylic acid halide or anhydride. The trimerization products are especially suitable for use in the preparation of polyurethane molding compositions.