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Title:
DEVELOPING ROLLER
Document Type and Number:
WIPO Patent Application WO/2012/105615
Kind Code:
A1
Abstract:
Provided is a developing roller which has improved printing quality, in particular improved quality of fine line printing at the single dot level by assuring high resistance and high surface potential in the surface layer. An elastic roller which is sequentially provided with an elastic layer (2), an intermediate layer (3) and a surface layer (4) on the outer circumference of a shaft (1). The surface layer (4) contains a urethane (meth)acrylate oligomer that is obtained by causing a polybutadiene polyol or a hydrogenated polybutadiene polyol, a polyisocyanate, and a (meth)acrylate having a hydroxy group to react with each other.

Inventors:
OOSAKU AKIHIDE (JP)
IMAI SHOGO (JP)
FUJISAWA YUSUKE (JP)
Application Number:
PCT/JP2012/052298
Publication Date:
August 09, 2012
Filing Date:
February 01, 2012
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
OOSAKU AKIHIDE (JP)
IMAI SHOGO (JP)
FUJISAWA YUSUKE (JP)
International Classes:
G03G15/08; F16C13/00
Domestic Patent References:
WO2005121906A12005-12-22
WO2006109563A12006-10-19
Foreign References:
JP2007233367A2007-09-13
JP2007133223A2007-05-31
JP2007131770A2007-05-31
JP2009115952A2009-05-28
JP2006337673A2006-12-14
JP2009063724A2009-03-26
JP2000206779A2000-07-28
JP2008107789A2008-05-08
JPH1152672A1999-02-26
JP2006301512A2006-11-02
JP2002055520A2002-02-20
JP2008233157A2008-10-02
JP2004240389A2004-08-26
Other References:
See also references of EP 2672326A4
Attorney, Agent or Firm:
HONDA ICHIRO (JP)
Ichiro Honda (JP)
Download PDF:
Claims:



 
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