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:
May. 26, 2015
Filed:
May. 23, 2011
Applicants:
Shufen Zhang, Dalian, CN;
Bingtao Tang, Dalian, CN;
Wei MA, Dalian, CN;
Inventors:
Assignee:
DALIAN UNIVERSITY OF TECHNOLOGY, Dalian, Liaoning Province, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 222/06 (2006.01); C09B 29/50 (2006.01); C08L 37/00 (2006.01); C08F 8/30 (2006.01); C08L 35/02 (2006.01); C08F 220/36 (2006.01); C08F 222/22 (2006.01); C09B 69/10 (2006.01); C08F 122/06 (2006.01); C09B 1/22 (2006.01); C09B 1/24 (2006.01); C09B 29/36 (2006.01);
U.S. Cl.
CPC ...
C09B 29/366 (2013.01); C08L 37/00 (2013.01); C08F 8/30 (2013.01); C08L 35/02 (2013.01); C08F 220/36 (2013.01); C08F 222/22 (2013.01); C09B 69/101 (2013.01); C09B 69/106 (2013.01); C09B 69/109 (2013.01); C08F 122/06 (2013.01); C08F 222/06 (2013.01); C09B 1/22 (2013.01); C09B 1/24 (2013.01); C09B 29/3604 (2013.01);
Abstract
The present invention provides a polycarboxylic acid dye with low polymerization degree, which is formed by using a macromolecule skeleton of polymaleic acid linked to an azo chromophore, an azo-metal complexation chromophore or an anthraquinone chromophore via a bridge group of amide or ester bond. The dye is useful for dyeing and printing leather, protein fiber, cellulose fiber and synthetic fiber.