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. 20, 1984
Filed:
Aug. 13, 1981
Applicant:
Inventors:
Josef Disteldorf, Herne, DE;
Rainer Gras, Herne, DE;
Werner Hubel, Herne, DE;
Elmar Wolf, Recklinghausen, DE;
Horst Schnurbusch, Herne, DE;
Assignee:
Chemische Werke Huls Aktiengesellschaft, Herne, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 528 59 ;
Abstract
A method for producing a polyaddition product of isophorone diisocyanate and diols which comprises, reacting a uretidione group-containing dimer of isophoronediisocyanate, which is decomposable by heat into 98% isophorone diisocyanate, with a diol, wherein the ratio of NCO to OH groups is such that the final polyaddition product has free terminal NCO groups, or free terminal OH groups.
Disteldorf, Josef. (1984). Polyaddition products containing uretidione groups and process for their (U.S. Patent No. 4483798). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4483798
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile