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:
Aug. 27, 2024
Filed:
Mar. 12, 2019
Applicant:
Nisshinbo Chemical Inc., Tokyo, JP;
Inventors:
Nobuyuki Matsumoto, Chiba, JP;
Kenichi Yanagisawa, Chiba, JP;
Assignee:
NISSHINBO CHEMICAL INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 267/00 (2006.01);
U.S. Cl.
CPC ...
C07C 267/00 (2013.01); C07C 2523/04 (2013.01); C07C 2531/02 (2013.01);
Abstract
A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an inorganic alkali metal compound (B) and at least one of a phase transfer catalyst (C), a compound (D-1) represented by general formula (2-1), and a compound (D-2) represented by general formula (2-2).