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:
Apr. 04, 1978
Filed:
Oct. 28, 1976
Teijin Limited, Minamihonmachi, JA;
Abstract
A process for preparing 2-amino-1-butanol by reacting L-tartarate of 2-amino-1-butanol with an aqueous slurry alkaline earth metal compound in such a way that some L-tartarate of 2-amino-1-butanol remains in the reaction system throughout the entire time of reaction to produce a precipitate of L-tartarate of the alkaline earth metal which comprises crystals which are sufficiently large so that they have excellent filterability and give a high yield of 2-amino-1-butanol. Highly purified 2-amino-1-butanol can be obtained by subjecting the thus obtained filtrate to rectification.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile