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.

Date of Patent:
Dec. 11, 2012

Filed:

May. 21, 2008
Applicant:

Ludwig Hasemann, Muellheim-Niederweiler, DE;

Inventor:

Ludwig Hasemann, Muellheim-Niederweiler, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2006.01); C09B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention concerns concentrated aqueous solutions of an anionic disazo dye, comprising salts and or the free acids of the anionic dye of the formula (I) and 2-(2-butoxyethoxy)ethanol and the use of these solutions for dyeing and/or printing hydroxyl-containing substrates and for producing inkjet inks.


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