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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING BLADE FOR ELECTROPHOTOGRAPHIC DEVICES, AND BLADE FOR ELECTROPHOTOGRAPHIC DEVICES
Document Type and Number:
WIPO Patent Application WO/2019/150677
Kind Code:
A1
Abstract:
Provided are: a method for manufacturing such a blade for electrophotographic devices that it becomes possible to prevent a toner to pass through the blade due to the cracking of a tip of the blade or the variation in pressing force of the blade against a member of interest when an impregnation processing is carried out; and a blade for electrophotographic devices. The method includes: an impregnation step of impregnating the surface of at least a part of a blade-shaped substrate containing a urethane rubber with a blocked isocyanate in which an isocyanate group is blocked with a blocking agent, wherein the part includes a part that can come into contact with a member of interest; and a hardening step of dissociating the blocking agent from the blocked isocyanate with which the substrate is impregnated in the impregnation step, and then hardening a released isocyanate in the substrate to form a hardened section in at least a part of the substrate, wherein the part includes a part that can come into contact with the member of interest. In the method, the isocyanate released from the block isocyanate comprises an aromatic isocyanate.

Inventors:
MIYAGAWA, Shimpei (1 Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
SAITO, Yoshihiro (1 Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
Application Number:
JP2018/040467
Publication Date:
August 08, 2019
Filing Date:
October 31, 2018
Export Citation:
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Assignee:
SUMITOMO RIKO COMPANY LIMITED (1 Higashi 3-chome, Komaki-shi Aichi, 50, 〒4858550, JP)
International Classes:
G03G21/00; C08G18/80; G03G15/00; G03G15/08; G03G15/16
Foreign References:
JP2015191084A2015-11-02
JP2007156093A2007-06-21
JPH08248851A1996-09-27
JP2017226828A2017-12-28
JP2017097220A2017-06-01
JP2006111676A2006-04-27
JP2004245944A2004-09-02
JP2010134310A2010-06-17
JP2015158654A2015-09-03
US20140153987A12014-06-05
Attorney, Agent or Firm:
WENO & PARTNERS (KS Iseya Building 8th Floor, 21-23 Sakae 3-chome, Naka-ku, Nagoya-sh, Aichi 08, 〒4600008, JP)
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