Title:
ELECTROCONDUCTIVE ROLL FOR ELECTROPHOTOGRAPHIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/026571
Kind Code:
A1
Abstract:
The present invention provides an electroconductive roll for an electrophotographic device, the surface layer of the electroconductive roll having excellent resistance uniformity by, when a water-based coating is used, inhibiting the agglomeration of carbon black included in the surface layer. Provided is an electroconductive roll 10 for an electrophotographic device, the electroconductive roll 10 comprising a spindle body 12, an elastic body layer 14 formed on the outer periphery of the spindle body 12, and a surface layer 16 formed on the outer periphery of the elastic body layer 14, and the surface layer 16 being formed from an emulsion composition containing components (a) through (d): (a) an aqueous polyurethane resin; (b) a urethane curing agent; (c) an associative thickener; and (d) carbon black.
Inventors:
HORIUCHI TAKERU (JP)
HAYASHI YOSUKE (JP)
NIMURA YASUNORI (JP)
KASHIHARA SHINKICHI (JP)
NAKAZATO KENTA (JP)
HAYASHI YOSUKE (JP)
NIMURA YASUNORI (JP)
KASHIHARA SHINKICHI (JP)
NAKAZATO KENTA (JP)
Application Number:
PCT/JP2019/020850
Publication Date:
February 06, 2020
Filing Date:
May 27, 2019
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
G03G15/00; C08G18/00; C08G18/08; C08G18/80; F16C13/00
Foreign References:
| JP2011022286A | 2011-02-03 | |||
| JP2006078593A | 2006-03-23 | |||
| JP2010010229A | 2010-01-14 | |||
| JP2004245863A | 2004-09-02 | |||
| JPH10148995A | 1998-06-02 | |||
| JP2016114791A | 2016-06-23 | |||
| JP2018101108A | 2018-06-28 | |||
| JP2009513763A | 2009-04-02 | |||
| US20130243500A1 | 2013-09-19 | |||
| US20060056881A1 | 2006-03-16 |
Attorney, Agent or Firm:
WENO & PARTNERS (JP)
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