Title:
CHARGING ROLL FOR ELECTROPHOTOGRAPHIC EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2023/248637
Kind Code:
A1
Abstract:
Provided is a charging roll for electrophotographic equipment with which any increase in resistance and any bleeding of ionic electroconductive agent while energization persists can be minimized. A charging roll 10 for electrophotographic equipment, the charging roll 10 comprising a shaft body 12 and an elastic layer 14 that is formed on the outer peripheral surface of the shaft body 12, the elastic layer 14 being a crosslinked article of a rubber composition containing the following components (a) to (e). (a) One or more selected from hydrin rubber and nitrile rubber, (b) a crosslinking agent, (c) an ionic electroconductive agent, (d) one or more selected from piperidinyloxy radical compounds and phenolic antioxidants, and (e) one or more selected from salts of cyclic amidine compounds and thiophthalimide compounds.
Inventors:
KASHIHARA SHINKICHI (JP)
SUENAGA JUNICHIRO (JP)
MORITA AKITOSHI (JP)
HORIUCHI TAKERU (JP)
SUENAGA JUNICHIRO (JP)
MORITA AKITOSHI (JP)
HORIUCHI TAKERU (JP)
Application Number:
PCT/JP2023/017624
Publication Date:
December 28, 2023
Filing Date:
May 10, 2023
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
G03G15/02; C08K5/13; C08K5/3465; C08K5/43; C08L9/02; C08L19/00
Foreign References:
| JP2006258932A | 2006-09-28 | |||
| JP2014065811A | 2014-04-17 | |||
| JP2016085395A | 2016-05-19 | |||
| JP2015184579A | 2015-10-22 | |||
| JP2015114589A | 2015-06-22 | |||
| JP2015212728A | 2015-11-26 | |||
| JP2019211552A | 2019-12-12 | |||
| JP2019152778A | 2019-09-12 | |||
| US20200371454A1 | 2020-11-26 |
Attorney, Agent or Firm:
YAMADA, Kazuhiro (JP)
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