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:
Jan. 10, 1995
Filed:
Jan. 21, 1994
Applicant:
Inventors:
Seiji Noda, Chiba, JP;
Takeshi Tsuji, Narashino, JP;
Assignee:
Lion Akzo Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556407 ; 544242 ; 544336 ; 5483471 ;
Abstract
A cyclic amidine typically having the formula: ##STR1## wherein R.sup.1 represents an organic radical, X represents a direct bond or a divalent organic radical and A and B each represent hydrogen or an organic radical is prepared by a liquid phase reaction of a nitrile of the formula R.sup.1 CN where R.sup.1 has the same meaning as above, with a polyamine typically having the formula: ##STR2## where X, A and B have the same meaning as above, in the presence presence of a mixture of a titanium compound with water.