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:
Jun. 26, 2012
Filed:
Jan. 07, 2009
Christian Cremer, Lörrach, DE;
Sophie Marquais-bienewald, Hegenheim, FR;
Olof Wallquist, Bottmingen, CH;
Beate Fröhling, Grenzach-Wyhlen, DE;
Christian Cremer, Lörrach, DE;
Sophie Marquais-Bienewald, Hegenheim, FR;
Olof Wallquist, Bottmingen, CH;
Beate Fröhling, Grenzach-Wyhlen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Disclosed are cationic polymeric dye with a hue value of h=210° to 330° comprising: a) a polymer backbone, b) a residue of an organic dye, and c) optionally colorless organic groups, wherein (b) and (c) are covalently bound to the polymer backbone (a), and wherein the cationic charges can independently be part of the dye or the colorless organic groups. The dyes are distinguished by their depth of shade and their good fastness properties to washing, such as, for example, fastness to light, shampooing and rubbing.