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. 19, 2003
Filed:
Apr. 25, 2001
Applicant:
Inventors:
Petter Bragd, Utrecht, NL;
Arie Cornelis Besemer, Amerongen, NL;
Jeffrey Wilson Thornton, Huizen, NL;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 4/537 ; C07C 5/116 ; C08B 3/118 ; C07H 1/00 ; C07B 3/300 ;
U.S. Cl.
CPC ...
C07C 4/537 ; C07C 5/116 ; C08B 3/118 ; C07H 1/00 ; C07B 3/300 ;
Abstract
A simplified process for oxidizing starch and other polysaccharides in an aqueous solution or suspension using hypochlorite in the presence of a catalytic amount of a nitroxyl compound is described. The oxidation is process is bromide-free and is carried out at a pH between 7 and 8.3 and at a temperature between 15 and 25° C.