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:
Jul. 13, 2010
Filed:
Nov. 14, 2002
Andreas Schmidt, Langenfeld, DE;
Hans-jürgen Buschmann, Kempen, DE;
Dierk Knittel, Krefeld, DE;
Eckhard Schollmeyer, Rheurdt, DE;
Andreas Schmidt, Langenfeld, DE;
Hans-Jürgen Buschmann, Kempen, DE;
Dierk Knittel, Krefeld, DE;
Eckhard Schollmeyer, Rheurdt, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The invention relates to a process for the preparation of reactive cyclodextrins, in which process the cyclodextrins CD are reacted with a bifunctional alkyl compound X—(CH)—Y, wherein X is a group which reacts with CD, n is an integer from 2 to 20 and Y is a group which reacts with a group Z or is a group-Reactive which is capable of reaction with cellulosic or proteinic materials and, optionally, in a further step, insofar as Y is a group which reacts with a group Z, the resulting product is reacted with a reactive anchor compound Z-Reactive to form the reactive cyclodextrin, and also to reactive cyclodextrins prepared in accordance therewith, to materials dressed therewith and to the use thereof.