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:
Jun. 05, 2001
Filed:
Oct. 20, 2000
Applicant:
Inventors:
Yasuhiro Takano, Fukuoka, JP;
Kaoru Sakadera, Fukuoka, JP;
Jyoji Morisaki, Kumamoto, JP;
Kunihiro Yamada, Fukuoka, JP;
Hideki Mizuta, Fukuoka, JP;
Hisato Itoh, Fukuoka, JP;
Assignee:
Mitsui Chemicals, Inc., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
A preparation process of N,N′-dialkylalkanediamine by reacting dihaloalkane with lower alkylamine characterized by carrying out the reaction with controlling the residual amount in the reaction system of haloalkaneamine intermediate represented by the formula (4):