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1. WO2020009234 - ELECTROCONDUCTIVE ROLLER AND IMAGE FORMATION DEVICE

Publication Number WO/2020/009234
Publication Date 09.01.2020
International Application No. PCT/JP2019/026878
International Filing Date 05.07.2019
IPC
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
06
for developing
08
using a solid developer, e.g. powder developer
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1
Layered products essentially having a general shape other than plane
08
Tubular products
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
40
comprising polyurethanes
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
28
characterised by the compounds used containing active hydrogen
67
Unsaturated compounds having active hydrogen
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
70
characterised by the isocyanates or isothiocyanates used
72
Polyisocyanates or polyisothiocyanates
74
cyclic
76
aromatic
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
13
Rolls, drums, discs, or the like; Bearings or mountings therefor
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
02
for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
14
for transferring a pattern to a second base
16
of a toner pattern, e.g. a powder pattern
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
20
for fixing, e.g. by using heat
G03G 15/08 (2006.01)
B32B 1/08 (2006.01)
B32B 27/40 (2006.01)
C08G 18/67 (2006.01)
C08G 18/76 (2006.01)
F16C 13/00 (2006.01)
CPC
B32B 1/08
B32B 27/40
C08G 18/67
C08G 18/76
F16C 13/00
G03G 15/00
Applicants
  • 株式会社ブリヂストン BRIDGESTONE CORPORATION [JP/JP]; 東京都中央区京橋三丁目1番1号 1-1, Kyobashi 3-chome, Chuo-ku, Tokyo 1048340, JP
Inventors
  • 熱海 陽彦 ATAMI Kiyohiko; JP
Agents
  • 杉村 憲司 SUGIMURA Kenji; JP
Priority Data
2018-12852605.07.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTROCONDUCTIVE ROLLER AND IMAGE FORMATION DEVICE
(FR) ROULEAU ÉLECTROCONDUCTEUR ET DISPOSITIF DE FORMATION D'IMAGE
(JA) 導電性ローラ及び画像形成装置
Abstract
(EN)
The objective of the present invention is to provide an electroconductive roller having excellent durability, and adhesiveness between a base layer and a surface layer. In order to achieve this objective, this electroconductive roller 1 comprises at least a shaft 2, a base layer 3 formed on the outer peripheral side of the shaft 2, an intermediate layer 5 formed on the base layer 3, and a surface layer 4 formed on the intermediate layer 4, wherein the electroconductive roller 1 is characterized in that: the base layer 3 includes a urethane resin; the intermediate layer 5 includes a radical curable resin having a plurality of hydroxyl groups and a plurality of (meth)acryloyl groups, and an isocyanate containing polymeric MDI and modified polymeric MDI; the content amount of the radical curable resin is 30-100 mass parts to 100 mass parts of the isocyanate; and the surface layer 4 includes a radical curable resin containing a (meth)acryloyl group.
(FR)
L'objectif de la présente invention est de fournir un rouleau électroconducteur ayant une excellente durabilité et étant doté d'adhésivité entre une couche de base et une couche de surface. Pour atteindre cet objectif, ce rouleau électroconducteur 1 comprend au moins un arbre 2, une couche de base 3 formée sur le côté périphérique externe de l'arbre 2, une couche intermédiaire 5 formée sur la couche de base 3, et une couche de surface 4 formée sur la couche intermédiaire 5, le rouleau électroconducteur 1 étant caractérisé en ce que : la couche de base 3 comprend une résine d'uréthane ; la couche intermédiaire 5 comprend une résine durcissable par voie radicalaire ayant une pluralité de groupes hydroxyle et une pluralité de groupes (méth)acryloyle, et un MDI polymère contenant un isocyanate et un MDI polymère modifié ; la teneur de la résine durcissable par voie radicalaire est de 30 à 100 parties en masse pour 100 parties en masse de l'isocyanate ; et la couche de surface 4 comprend une résine durcissable par voie radicalaire contenant un groupe (méth)acryloyle.
(JA)
基層と表層との間の接着性及び耐久性に優れた導電性ローラを提供することを目的とする。 上記課題を解決するべく、本発明の導電性ローラ1は、シャフト2と、該シャフト2の外周側に形成された基層3と、該基層3上に形成された中間層5と、該中間層4上に形成された表層4と、を少なくとも備える導電性ローラ1であって、前記基層3が、ウレタン樹脂を含み、前記中間層5が、複数の水酸基及び複数の(メタ)アクリロイル基を有するラジカル硬化型樹脂と、ポリメリックMDI及び変性ポリメリックMDIを含有するイソシアネートと、を含み、前記ラジカル硬化型樹脂の含有量が、前記イソシアネート100質量部に対して30~100質量部であり、前記表層4が、(メタ)アクリロイル基を有するラジカル硬化型樹脂を含むことを特徴とする。
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