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:
Mar. 04, 1980
Filed:
Jan. 03, 1978
Applicant:
Inventor:
William K Langdon, Grosse Ile, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528405 ; 260 / ; 2605 / ;
Abstract
Non-gelled polyalkylenepolyamine polyethers are prepared by the reaction of ethylenediamine and polyepichlorohydrin in the presence of an organic solvent. The solvent enables the reactants to be present at less than a 3:1 ratio of polyamine per chlorine atom.
Langdon, William. (1980). Process for preparing polyalkylene polyamine polyethers (U.S. Patent No. 4191820). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4191820
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile