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. 06, 1981
Filed:
Aug. 09, 1979
Applicant:
Inventors:
Frederick C Franklin, Pinole, CA (US);
Robert A Lewis, Berkeley, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528371 ; 528372 ;
Abstract
A process for the production of polymeric carbamate from polyalkylene polyamines which provides for the efficient separation of the product mixture into a hydrocarbon phase containing the carbamate and a polyamine phase containing the polyamine hydrochloride salt utilizes an excess of polyamine reactant containing a limited amount of water. The process is particularly suited to the production of monocarbamate.