Granted Patent
B2
US 7,473,782 · App. 11/444,969 · Granted Jan 6, 2009
Fluorinated dyes or colorants and their uses
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Abstract
This invention relates to novel fluorinated dyes or colorants having high solubility and low viscosity in halogenated, especially fluorinated, solvents. The dyes or colorants of the present invention improve the performance of electrophoretic displays.
Claims (9)
1. A fluorinated perylene dye or colorant expressed by the following Formula (IV):
wherein:
m+n+p+q=1-4;
X is O;
R 1 is R f -A- wherein R f is a fluorinated alkyl and A is an alkylene chain; and
R 2 is RO— wherein R is a fluorinated alkyl.
2. The dye or colorant of claim 1 wherein m+n+p+q=2-4.
3. The dye or colorant of claim 1 wherein R f is —(CF 2 ) 6 CF 3 , A is —CH 2 — and R is —CH 2 (CF 2 ) 7 CF 3 .
4. The dye or colorant of claim 3 wherein m+n+p+q=2-4.
Assignments (2)
CHANGE OF NAME
Recorded Jul 7, 2014
From: SIPIX IMAGING, INC.
To: E INK CALIFORNIA, LLC
Reel/Frame 033280/0408 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Aug 17, 2006
From: YANG, JIN; LI, YING SYI; GU, HAIYAN; CHEN, YAJUAN
To: SIPIX IMAGING, INC.
Reel/Frame 018133/0238 →