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, 2013
Filed:
Dec. 15, 2008
Frank Hacket, Altenstadt, DE;
Thomas Hey, Bad Nauheim, DE;
Franziska Hauschild, Bad Nauheim, DE;
Helmut Knoller, Friedberg, DE;
Martin Schimmel, Oberursel, DE;
Klaus Sommermeyer, Rossbach, DE;
Frank Hacket, Altenstadt, DE;
Thomas Hey, Bad Nauheim, DE;
Franziska Hauschild, Bad Nauheim, DE;
Helmut Knoller, Friedberg, DE;
Martin Schimmel, Oberursel, DE;
Klaus Sommermeyer, Rossbach, DE;
Fresenius Kabi Deutschland GmbH, Bad Homburg, DE;
Abstract
The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidized reducing end of the HAS with the amino group M of a crosslinking compound which, apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.