| US 7,540,981 B2 | ||
| Biasable transfer composition and member | ||
| M. Cristina B. Dejesus, Fairport, N.Y. (US); John C. Wilson, Rochester, N.Y. (US); and Charles E. Hewitt, Rochester, N.Y. (US) | ||
| Assigned to Eastman Kodak Company, Rochester, N.Y. (US) | ||
| Filed on Sep. 30, 2005, as Appl. No. 11/241,386. | ||
| Prior Publication US 2007/0075298 A1, Apr. 05, 2007 | ||
| Int. Cl. G03G 13/36 (2006.01); G03G 13/00 (2006.01); G03G 9/10 (2006.01); H01B 1/12 (2006.01); H01B 1/20 (2006.01) | ||
| U.S. Cl. 252—519.1 [252/500; 428/425.8; 428/423.1; 428/411.1; 430/62; 430/126.1; 430/126.2; 399/313; 399/159] | 11 Claims |
1. A member for electrically cooperating with a conductive support surface to attract charged toner particles from the support
surface towards the member which comprises a conductive substrate for supporting a uniform potential thereon and at least
one layer which comprises a polymeric material having incorporated therein in an amount sufficient to provide the polymeric
material with a resistivity of from about 106 to about 5.0×1011 ohm cm a conductivity control agent from 0.001 to 5.000 weight percent, based on the total weight of the polymeric material,
the conductivity control agent comprising a hydroxyalkylphosphonium sulfonate salt represented by the formula:
 where Ar comprises a substituted or unsubstituted aryl group;
R comprises substituted or unsubstituted divalent alkylene moiety;
R1, R2 and R3 comprises substituted or unsubstituted alkyl or aryl group which may be the same or different.
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