Browse Prior Art Database

IMPROVED PEP INK

IP.com Disclosure Number: IPCOM000023581D
Original Publication Date: 1978-Apr-30
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 184K

Publishing Venue

Xerox Disclosure Journal

Abstract

Photosensitive composition for use in photoelectrophoretic imaging systems are disclosecL The particulate component of this composition includes vanady.l phthalocyanine pigment particles which have been treated with a polymer having structural units of the formula:

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XEROX DISCLOSURE JOURNAL

IMPROVED PEP INK Proposed Classification
Roger N. Ciccarelli U~S~C1~ 96/1
Meurig W~ Williams Into Cl~ G03g

Photosensitive composition for use in photoelectrophoretic
imaging systems are disclosecL The particulate component of
this composition includes vanady.l phthalocyanine pigment
particles which have been treated with a polymer having
structural units of the formula:

R

+C ~*~m

C

/

                 O - (CH.~) N
n
wherein R is methyl or hydrogen

R~ and R~ are independently selected from the group
consisting of hydrogen, alkyl of l~lO carbon atoms,
phenyl and substituted phenyl, said phenyl substituent
being incapable of withdrawing electrons from the
electron~-rich phenyl group;

m is in excess of about 25; and

n is the range of from 1 to 5~

Volume 3 Number 2 March/April 1978 87

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                  XEROX DISCLOSURE JOURNAL
88 Volume 3 Number 2 March/April 1978

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