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. 25, 2014
Filed:
Jan. 04, 2012
Applicants:
Serge Gruetter, Courgenay, CH;
Jean-jacques Donze, Blodelsheim, FR;
Serge Schroeder, Rosenau, FR;
Andrea Frey, Rheinfelden, DE;
Inventors:
Serge Gruetter, Courgenay, CH;
Jean-Jacques Donze, Blodelsheim, FR;
Serge Schroeder, Rosenau, FR;
Andrea Frey, Rheinfelden, DE;
Assignee:
Hunstman International LLC, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06L 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an aqueous dispersion containing (a) a fluorescent whitening agent, (b) a dispersing agent, (c) a β-1,3-glucan and, optionally, (d) a vat dye and the use of the aqueous dispersions for whitening synthetic fibers, in particular polyester and polyacrylonitrile.