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:
May. 10, 1977
Filed:
Sep. 15, 1975
Applicant:
Inventor:
Kaneyoshi Ashida, Chofu, JA;
Assignee:
Mitsubishi Chemical Industries Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 2603 / ; 08G / ;
Abstract
A process is disclosed for producing a compound, having an oxazolidone ring, by reacting an isocyanate compound and an epoxy compound wherein said reaction is catalytically promoted in the presence of an effective amount of a complex of a Lewis acid, especially a certain metal halide, with at least one Lewis base select from an ether, a thioether, an amine, a lactam, an amide, or a certain phosphorus or sulfur compound.
Ashida, Kaneyoshi. (1977). Process for producing compounds having an oxazolidone ring using a (U.S. Patent No. 4022721). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4022721
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile