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:
Aug. 10, 1982
Filed:
Oct. 06, 1980
Applicant:
Inventor:
Ichiro Watanabe, Yokohama, JP;
Assignee:
Nitto Chemical Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12R / ; C12R / ;
U.S. Cl.
CPC ...
435129 ; 435180 ; 435872 ; 435843 ;
Abstract
This invention provides a process for the production of acrylamide from acrylonitrile in an aqueous medium by use of a microorganism having nitrilasic activity, wherein at least one compound selected from alkali metal carbonates and bicarbonates is added to the aqueous medium, either solely or in combination with an organic carboxylic acid, thus inhibiting the swelling of fixed cells, maintaining the enzymatic activity for a long period of time, and efficiently obtaining an aqueous solution of acrylamide having high quality.