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. 16, 2005
Filed:
Jul. 12, 2001
Fabienne Cuesta, Roppentzwiller, FR;
Dieter Reinehr, Kandern, DE;
Hans Kramer, Frick, CH;
Georges Metzger, Moernach, FR;
Bernd Wockenfuss, Lörrach, DE;
Fabienne Cuesta, Roppentzwiller, FR;
Dieter Reinehr, Kandern, DE;
Hans Kramer, Frick, CH;
Georges Metzger, Moernach, FR;
Bernd Wockenfuss, Lörrach, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
A method for the fluorescent whitening of cotton in a discontinuous process comprising contacting the cotton, I an aqueous bath having a pH value of 6 or less, with one or more compounds of the Formula (I) wherein Rrepresents an —SOR, —SOR, COM, —COR, —CONRR, —CN or —NOsubstituent, Ris —NH, —NH(C-Calkyl), —N(C-Calkyl), —NH(C-Chydroxyalkyl), —N(C-Chydroxyalkyl), —NH(C-Calkoxy)(C-Calkyl), —N[(C-Calkoxy)(C-Calkyl)], NHC—Calkylsulphonic acid, morpholineo, piperidino pyrrolidino, an amino acid or amino acid amide residue from which a hydrogen atom on the amino group has been removed, —OC-Calkyl or —OC-Chydroxyalkyl, Rand Reach, independently, represent hydrogen, C-Calkyl, C-Chydroxyalkyl or C-CalkoxyC-Calkyl and M is H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubsituted by C-Calkyl, C-Chydroxyalkyl or a mixture thereof, some of which are new