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. 25, 1990
Filed:
May. 30, 1989
Applicant:
Inventors:
Assignee:
Tosoh Corporation, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
564482 ;
Abstract
A process for producing polyethylenepolyamine from ethylene dichloride and aqueous ammonia which comprises reacting ethylene dichloride with ammonia, and then continuing the reaction in the presence of at least one kind of amine when the overall conversion of ethylene dichloride has become 25 to 85%.
Quick Actions:
Mizui, Norimasa. (1990). Process for producing polyethylenepolyamine (U.S. Patent No. 4980507). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4980507
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile