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:
Nov. 24, 1998
Filed:
Nov. 06, 1997
Applicant:
Inventor:
Yasuo Tsuji, Ohtake, JP;
Assignee:
Daicel Chemical Industries, Ltd., Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564479 ;
Abstract
Disclosed is a process for the preparation of a process for the separation and purification of amines from a mixed reaction crude liquid containing ethylamines prepared by a reaction of ethylalcohol or acetaldehyde with ammonia, and triethylamine can be predominantly prepared without accumulation of ingredients having intermediate boiling-points.
Tsuji, Yasuo. (1998). Process for the preparation of ethylamines (U.S. Patent No. 5840987). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5840987
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