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:
Nov. 06, 2012
Filed:
Apr. 24, 2007
Applicants:
Asko Karppi, Turku, FI;
Bengt-erik Knubb, Turku, FI;
Holger Reinicke, Lörrach, DE;
Inventors:
Assignee:
BASF SE Ludwigshafen, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to polysaccharide, preferably starch, of high purity having cationic degree of substitution over 0.50 and bound nitrogen index after cationization reaction stage over 0.75, and to preparation thereof as well as to its use in making of paper or paperboard.