Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2008-02-13
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
Reexamination Certificate
active
08080627
ABSTRACT:
The present invention provides an electrophotographic photoreceptor having excellent lubricity and abrasion resistance by using a novel polycarbonate resin comprising structural units having a polysiloxane chain in the shape of grafts as represented by the following general formula (1) with a viscosity-average molecular weight of 12,000 to 100,000 as a binder resin for a charge transport layer of a electrophotographic photoreceptor.wherein R1to R5each independently represents hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group, an aryl group, an alkoxy group or an aralkyl group. R6represents an alkylene group. Y represents a polysiloxane chain.
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Extended European Search Report (EESR) issued May 19, 2008 in connection with EP 08 00 2691 corresponding to the present U.S. application.
Minemura Masahiko
Ogawa Noriyoshi
Boykin Terressa
Mitsubishi Gas Chemical Company Inc.
Shin-Etsu Chemical Co. , Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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