Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2007-03-28
2011-12-20
Boykin, Terressa (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C430S059500, C430S064000, C430S134000, C528S026000, C528S033000, C528S198000
Reexamination Certificate
active
08080628
ABSTRACT:
An electrophotographic photosensitive body which has both good image stability and wear resistance under high temperature and high humidity conditions can be obtained by using a novel polycarbonate resin, which contains a structural unit represented by the general formula (I) below and having a long-chain unsaturated hydrocarbon group having a double bond, as a binder resin for a charge transport layer of an electrophotographic photosensitive body.In the formula (I), R1-R4preferably represent a hydrogen atom or a methyl group, respectively; a represents a number of 7-20; and R6represents a hydrogen atom, a methyl group or a phenyl group. Particularly preferably, the structural unit represented by the general formula (I) below is derived from 1,1-bis(4-hydroxy-3-methylphenyl)-10-undecene or 1,1-bis(4-hydroxyphenyl)-10-undecene.
REFERENCES:
patent: 09-216944 (1997-08-01), None
patent: 10-130382 (1998-05-01), None
patent: 2002-173529 (2002-06-01), None
Boykin Terressa
Mitsubishi Gas Chemical Company Inc.
Wenderoth , Lind & Ponack, L.L.P.
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