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:
Apr. 06, 1976
Filed:
Oct. 11, 1974
Yoshiaki Inamoto, Wakayama, JA;
Hisao Kitano, Osaka, JA;
Yoshiaki Tanaka, Osaka, JA;
Fumio Tanimoto, Kyoto, JA;
Atsushi Nishibata, Wakayama, JA;
Susumu Handa, Wakayama, JA;
Kao Soap Co., Ltd., Tokyo, JA;
Abstract
A process for preparing benzene derivatives having an isocyanatomethyl group by reacting a benzene derivative having a chloromethyl group with sodium cyanate in dimethylformamide at 60.degree. to 160.degree.C., in the presence of a catalytic amount of an acidic metal chloride-dimethylformamide compound, made present in the reaction mixture from the start of the reaction by being dissolved in the starting reaction mixture.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile