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:
Jun. 19, 2007
Filed:
Oct. 11, 2006
Applicants:
Wen-jang Chen, Taoyuan Hsien, TW;
Chien-yu Chen, Taoyuan Hsien, TW;
Chen-lung Kao, Taoyuan Hsien, TW;
Inventors:
Wen-Jang Chen, Taoyuan Hsien, TW;
Chien-Yu Chen, Taoyuan Hsien, TW;
Chen-Lung Kao, Taoyuan Hsien, TW;
Assignee:
Everlight USA, Inc., Pineville, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B 62/513 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a disazo red reactive dyestuff containing quaternary ammonium group of the following formula (1): wherein R', R″, m, n, Yand Yare defined the same as in the specification. The disazo red reactive dyestuff of the present invention has a good dye uptake while dyeing cellulose fibers, which satisfies the economical demand of high build up in the market.