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WO2008143012A1 - 導電性ローラ及び導電性ローラの製造方法 - Google Patents

導電性ローラ及び導電性ローラの製造方法 Download PDF

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Publication number
WO2008143012A1
WO2008143012A1 PCT/JP2008/058562 JP2008058562W WO2008143012A1 WO 2008143012 A1 WO2008143012 A1 WO 2008143012A1 JP 2008058562 W JP2008058562 W JP 2008058562W WO 2008143012 A1 WO2008143012 A1 WO 2008143012A1
Authority
WO
WIPO (PCT)
Prior art keywords
density
elastic layer
layer
conductive roller
polyurethane foam
Prior art date
Application number
PCT/JP2008/058562
Other languages
English (en)
French (fr)
Inventor
Hirotaka Tagawa
Katsuyuki Toyoda
Kota Kawano
Takayuki Sugimura
Original Assignee
Bridgestone Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2007126609A external-priority patent/JP4998717B2/ja
Priority claimed from JP2007126584A external-priority patent/JP5041142B2/ja
Priority claimed from JP2007211875A external-priority patent/JP2009045770A/ja
Application filed by Bridgestone Corporation filed Critical Bridgestone Corporation
Publication of WO2008143012A1 publication Critical patent/WO2008143012A1/ja

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
    • G03G15/0233—Structure, details of the charging member, e.g. chemical composition, surface properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0058—≥50 and <150kg/m3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

　ポリオール成分とイソシアネート成分とを含むポリウレタン原料から機械撹拌発泡により得られるポリウレタン発泡体からなる弾性層を有する導電性ローラにおいて、上記弾性層を形成するポリウレタン発泡体が、表面から深さ０．０５ｍｍまでの密度が０．７５～０．９９ｇ／ｃｍ3、厚さ方向中央部の厚さ０．０５ｍｍ範囲の密度が０．２～０．７ｇ／ｃｍ3で、かつこれら表面部密度と中央部密度との差が０．２５ｇ／ｃｍ3以上の発泡体であることを特徴とする導電性ローラを提供する。弾性層を形成するポリウレタン発泡体の密度分布を上記のように調整したことにより、弾性層の表面近傍の密度が高く弾性層表面に現れる気泡の穴が小さく、少ないと共に、厚さ方向中央部の密度が比較的低く良好な柔軟性を有しており、従来弾性層と樹脂塗膜層との間に形成されていた目止め層を省略してこの弾性層上に直接樹脂塗膜層を形成し、製造コストの低減化を図ることができる。
PCT/JP2008/058562 2007-05-11 2008-05-08 導電性ローラ及び導電性ローラの製造方法 WO2008143012A1 (ja)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2007126609A JP4998717B2 (ja) 2007-05-11 2007-05-11 発泡弾性体及びそれを用いた導電性ローラ
JP2007126584A JP5041142B2 (ja) 2007-05-11 2007-05-11 導電性ローラ及び導電性ローラの製造方法
JP2007-126584 2007-05-11
JP2007-126609 2007-05-11
JP2007-211875 2007-08-15
JP2007211875A JP2009045770A (ja) 2007-08-15 2007-08-15 弾性体ローラの製造方法

Publications (1)

Publication Number Publication Date
WO2008143012A1 true WO2008143012A1 (ja) 2008-11-27

Family

ID=40031724

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058562 WO2008143012A1 (ja) 2007-05-11 2008-05-08 導電性ローラ及び導電性ローラの製造方法

Country Status (1)

Country Link
WO (1) WO2008143012A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010026373A (ja) * 2008-07-23 2010-02-04 Shin Etsu Polymer Co Ltd 弾性ローラ及び定着装置
KR20150038151A (ko) * 2012-07-31 2015-04-08 캐논 가부시끼가이샤 전자 사진용 부재 및 전자 사진 장치
CN105027007A (zh) * 2013-03-05 2015-11-04 株式会社普利司通 辊及其制造方法、和使用该辊的图像形成设备
JP2022536357A (ja) * 2019-06-10 2022-08-15 ナショナル ユニバーシティー オブ シンガポール 圧力センサ用の複合構造及び圧力センサ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0546020A (ja) * 1991-03-22 1993-02-26 Seiko Epson Corp 現像装置
JPH0798549A (ja) * 1993-05-19 1995-04-11 Bridgestone Corp 導電性ローラ
JP2002363237A (ja) * 2001-06-07 2002-12-18 Bridgestone Corp 導電性ポリウレタンフォーム部材
JP2003195597A (ja) * 2001-12-27 2003-07-09 Canon Inc 導電性ローラ、その製造方法及び該ローラを用いた画像形成装置
JP2005036975A (ja) * 2003-06-27 2005-02-10 Matsushita Electric Ind Co Ltd 断熱材と、その製造方法、及びその断熱材を使用した機器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0546020A (ja) * 1991-03-22 1993-02-26 Seiko Epson Corp 現像装置
JPH0798549A (ja) * 1993-05-19 1995-04-11 Bridgestone Corp 導電性ローラ
JP2002363237A (ja) * 2001-06-07 2002-12-18 Bridgestone Corp 導電性ポリウレタンフォーム部材
JP2003195597A (ja) * 2001-12-27 2003-07-09 Canon Inc 導電性ローラ、その製造方法及び該ローラを用いた画像形成装置
JP2005036975A (ja) * 2003-06-27 2005-02-10 Matsushita Electric Ind Co Ltd 断熱材と、その製造方法、及びその断熱材を使用した機器

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010026373A (ja) * 2008-07-23 2010-02-04 Shin Etsu Polymer Co Ltd 弾性ローラ及び定着装置
KR20150038151A (ko) * 2012-07-31 2015-04-08 캐논 가부시끼가이샤 전자 사진용 부재 및 전자 사진 장치
EP2881797A4 (en) * 2012-07-31 2016-06-22 Canon Kk ELECTROPHOTOGRAPHIC ELEMENT AND ELECTROPHOTOGRAPHIC DEVICE
KR101686358B1 (ko) 2012-07-31 2016-12-13 캐논 가부시끼가이샤 전자 사진용 부재 및 전자 사진 장치
CN105027007A (zh) * 2013-03-05 2015-11-04 株式会社普利司通 辊及其制造方法、和使用该辊的图像形成设备
JP2022536357A (ja) * 2019-06-10 2022-08-15 ナショナル ユニバーシティー オブ シンガポール 圧力センサ用の複合構造及び圧力センサ
JP7663516B2 (ja) 2019-06-10 2025-04-16 ナショナル ユニバーシティー オブ シンガポール 圧力センサ用の複合構造及び圧力センサ
US12392673B2 (en) 2019-06-10 2025-08-19 National University Of Singapore Composite structure for a pressure sensor and pressure sensor

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