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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.:

US 9567415 B1

PDFFull Text
Date of Patent:
Feb. 14, 2017

Filed:

Dec. 11, 2013

Pigment dispersing agent, pigment dispersion solution, color photoresist and manufacture and use thereof

Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Xuelan Wang, Beijing, CN;

Chen Tang, Beijing, CN;

Assignee:

BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;

Attorney:

Ladas & Parry LLP

Primary Examiner:

Monique Peets

Int. Cl.
CPC ...
C08L 33/10 (2006.01); C08F 22/10 (2006.01); C08B 37/16 (2006.01); C08F 8/00 (2006.01); C09D 17/00 (2006.01); C09D 133/12 (2006.01); C08L 33/12 (2006.01); G03F 7/004 (2006.01); G02B 5/22 (2006.01); C09B 67/46 (2006.01); G02B 5/20 (2006.01); G03F 7/00 (2006.01); G03F 7/027 (2006.01); G03F 7/105 (2006.01);
U.S. Cl.
CPC ...
C08F 22/10 (2013.01); C08B 37/0012 (2013.01); C08F 8/00 (2013.01); C08L 33/10 (2013.01); C08L 33/12 (2013.01); C09B 67/009 (2013.01); C09D 17/00 (2013.01); C09D 133/12 (2013.01); G02B 5/20 (2013.01); G02B 5/223 (2013.01); G03F 7/004 (2013.01); G03F 7/0007 (2013.01); G03F 7/027 (2013.01); G03F 7/105 (2013.01);
Abstract

A pigment dispersing agent, a pigment dispersion solution, a color photoresist, and a process for manufacturing the same, and use in the color film substrate and display device. The pigment dispersing agent is an amino-β-cyclodextrin modified polymethacrylate, the amino-β-cyclodextrin modified polymethacrylate being used to disperse a powdered pigment having an aromatic group, wherein the degree of modification by amino-β-cyclodextrin is 5.36%-35.40%. Because β-cyclodextrin moiety is a group having affinity for pigments, it can bind to the aromatic group in the pigment molecular structure, thereby capable of dispersing the powdered pigment having an aromatic group. The pigment dispersion solution prepared from the pigment dispersing agent has small particle size, narrow particle size distribution range, and high storage stability, thereby improving the yield of the display product.

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