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:
Dec. 19, 1978
Filed:
Oct. 25, 1977
Applicant:
Inventors:
Nobuyuki Nagato, Wako, JP;
Taketoshi Naito, Yokohama, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
Process for preparing .alpha.,.alpha.-dimethylbenzyl isocyanate or its derivatives which comprises reacting the corresponding organic halide in an anhydrous condition in the presence of a specified catalyst with an alkali metal cyanate in an aprotic solvent which forms no salt with a hydrogen halide.