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:
Sep. 26, 1995
Filed:
Jun. 16, 1994
Applicant:
Inventors:
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
562 17 ;
Abstract
The invention is directed to a process for preparing N-phosphonomethylglycine comprising the steps of reacting an aminomethylphosphonic acid with a glyconitrile in the presence of an alkali metal hydroxide to form a product, and then hydrolyzing the product by adding an alkali metal hydroxide in an amount sufficient to neutralize the resulting carboxylic acid.