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:
Jan. 29, 2019
Filed:
Jan. 24, 2017
Applicant:
Teh Fong Min International Co., Ltd., Taipei, TW;
Inventors:
Yu-Lin Huang, Taipei, TW;
Randall Bruce Nelson, Vancouver, WA (US);
Tseng-Peng Li, Taipei, TW;
Chih-Wen Yeh, Taipei, TW;
Assignee:
TEH FONG MIN INTERNATIONAL CO., LTD., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/42 (2006.01); C09D 17/00 (2006.01); D21H 21/30 (2006.01);
U.S. Cl.
CPC ...
D21H 21/30 (2013.01); C08K 5/42 (2013.01); C09D 17/003 (2013.01);
Abstract
An optical brightening agent composition having an optical brightening agent, a dispersing agent and water. The optical brightening agent and the dispersing agent are triazine-stilbenes and methylene dinaphthalene sulfonates, respectively. Applications of an optical brightening agent composition for optically brightening paper or cardboards, optically brightening surfaces of paper or cardboards, and coating or adhesively pressing an optical brightening agent composition on paper or cardboards, are also provided.