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:
Mar. 26, 2002
Filed:
Sep. 19, 2000
Applicant:
Inventors:
Kenneth Charles Symes, Keighley, GB;
Jonathan Hughes, Brighouse, GB;
Assignee:
Ciba Specialty Chemicals Water Treatments Limited, Bradford, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P 7/62 ;
U.S. Cl.
CPC ...
C12P 7/62 ;
Abstract
A solution having a high concentration of ammonium (meth)acrylate and which is substantially free of (meth)acrylonitrile is made by enzymatic hydrolysis of (meth)acrylonitrile in the presence of water using an enzyme that has Km for (meth)acrylonitrile below 500 &mgr;m and Ki for ammonium (meth)acrylate about 100,000.