IP Library Granted Patent US 7,473,782
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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Quick Facts
Patent No.
US 7,473,782
App. No.
11/444,969
Granted
Jan 6, 2009
Kind
B2
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 →