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. 03, 2009
Filed:
Dec. 01, 2003
Jean-jacques Donzé, Blodelsheim, FR;
Marie Meyberger, Bouxwiller, FR;
Michael Milde, Grenzach-Wyhlen, DE;
Volker Papendick, Steinen, DE;
Josef Zelger, Riehen, CH;
Jean-Jacques Donzé, Blodelsheim, FR;
Marie Meyberger, Bouxwiller, FR;
Michael Milde, Grenzach-Wyhlen, DE;
Volker Papendick, Steinen, DE;
Josef Zelger, Riehen, CH;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The present invention relates to a mixture of fluorescent whitening agents comprising 11 to 20% by weight of a compound of formula (1), and 80 to 89% by weight of a compound of formula (2), wherein Rdenotes hydrogen, C-Calkyl, C-Caryl or C-Caralkyl and X is a bivalent radical of formula (3), (4) or (5) compositions containing the mixture and the use of the compositions for whitening synthetic fibers, in particular, polyester.