Browse Prior Art Database

NOVEL CHARGE TRANSPORTING SYSTEMS

IP.com Disclosure Number: IPCOM000026976D
Original Publication Date: 1994-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 4 page(s) / 87K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a charge transporting polymer comprising a charge transporting backbone and charge transporting pendant groups. The charge transporting polymer is useful in electrophotographic imaging members of printing and copying machines. The charge transfer polymer is particularly useful in organic belt type photoreceptor members. The backbone of the transport polymer is comprised of a polysilicone polymer as shown in Figure 1. The polysilicone copolymer contains substitutents X, for example, the triphenylamine compound as shown in Figure 2, the biphenyl diamine compound shown in Figure 3, or the carbazol compound shown in Figure 4. The charge transport active pendant groups selected from those indicated by Figures 2, 3, and 4 enable charges to hop between the pendant groups of a given chain and between adjacent chains. The backbone polymer plays a secondary charge transport role. The charge transporting polymers can be optionally dispersed in inert binder resins. The charge transport active molecules incorporated into the backbone or as pendant groups on the silicone polymers provide for charge transport both within the polymer backbone as well as between substituted pendant groups.

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Page 1 of 4

XEROX DISCLOSURE JOURNAL

NOVEL CHARGE TRANSPORTING Proposed Classification SYSTEMS US. C1.355/211 Damodar M. Pai
C1. Int. Santokh S. Badesha G03g 05/00

R R R

  Ill si ( )y- si ( )x- si ( - I I IZ )-

R x R

FIG. 1

FIG. 2

XEROX DISCLOSURE JOURNAL - Vol. 19, No. 5 September:October 1994 363

[This page contains 1 picture or other non-text object]

Page 2 of 4

NOVEL CHARGE TRANSPORTING SYSTEMS(Cont'd)

R1 RI

R1

N

N

'9

R1

R1 R1

FIG. 3

N .'Iq$=yR1

FIG. 4

364 XEROX DISCLOSURE JOURNAL - Vol. 19, No. 5 September/October 1994

[This page contains 1 picture or other non-text object]

Page 3 of 4

NOVEL CHARGE TRANSPORTING SYSTEMS(Cont'd)

Disclosed is a charge transporting polymer comprising a charge transporting backbone and charge transporting pendant groups. The charge transporting polymer is useful in electrophotographic imaging members of printing and copying machines. The charge transfer polymer is particularly useful in organic belt type photoreceptor members. The backbone of the transport polymer is comprised of a polysilicone polymer as shown in Figure 1. The polysilicone copolymer contains substitutents X, for example, the triphenylamine compound as shown in Figure 2, the biphenyl diamine compound shown in Figure 3, or the carbazol compound shown in Figure 4.
The charge transport active pendant groups selected from those indicated by Figures 2, 3, and 4 enable charges to hop between the pendant groups of a given chain and between adjacent chains. The backbone polymer plays...