Unlock instant, AI-driven research and patent intelligence for your innovation.

Composition for conductive rubber roll and conductive rubber roll

A rubber roller and conductivity technology, which is applied in the fields of compositions for conductive rubber rollers and conductive rubber rollers, can solve the problem that the bias voltage depends on the external environment, etc., and achieve the effect of suppressing exudation

Active Publication Date: 2015-03-04
YAMAUCHI CORP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the conductive rubber roller has a problem that when a bias voltage is applied at the time of image forming operation, the resistance of the rubber layer having ion conductivity fluctuates with changes in the external environment (such as humidity and temperature), so the applied bias voltage Depends on external environment (such as humidity and temperature)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composition for conductive rubber roll and conductive rubber roll
  • Composition for conductive rubber roll and conductive rubber roll
  • Composition for conductive rubber roll and conductive rubber roll

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～30

[0139] Each component was blended in the formulation (unit: parts by mass) shown in Table 1 and kneaded with an open mill to prepare a composition for a conductive rubber roller.

[0140] Specifically, first, NBR (ion-conducting polymer), epichlorohydrin rubber (ion-conducting polymer) and EPDM (other polymers) were kneaded for 0.2 hours in an open mill to prepare an ion-conductive rubber component. .

[0141] Next, to this rubber component, a foaming agent (only Examples 6 to 8, 12, and 13), a processing aid, a filler, a (meth)acrylate compound represented by the above-mentioned general formula (1), a vulcanized Acceleration aids, vulcanization accelerator A, vulcanization accelerator B, and vulcanization agent were mixed with an open mill for 0.3 hours.

[0142] Thus, a composition for a conductive rubber roller was prepared.

[0143] Next, if figure 1 As shown in (b), the conductive rubber roller composition is extruded into a cylindrical shape, and after primary vulcani...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a composition for a conductive rubber roll and the conductive rubber roll. The composition for the electrically-conductive rubber roll comprises a rubber component with ionic conductivity and a (meth)acrylate compound represented by the general formula (1), wherein the R1 represents methyl or a hydrogen atom, the R2 represents alkylene with the number of carbon atoms being 1-4, the R3 represents monovalent alkyl with the number of carbon atoms being 1-20 or a hydrogen atom, and a represents an integer greater than 2. The general formula (1) is shown in the specification.

Description

technical field [0001] The present invention relates to a composition for a conductive rubber roller and a conductive rubber roller, and more specifically, to a conductive rubber roller used in an electrophotographic image forming apparatus and the like, and to a conductive rubber roller suitable for the conductive rubber roller combination. Background technique [0002] An image forming apparatus employing an electrophotographic method is known so far. Such an image forming apparatus includes a photosensitive drum on which a toner image is formed, and a conductive rubber roller facing the photosensitive drum. Examples of conductive rubber rollers include charging rollers for charging photosensitive drums, developing rollers for supplying toner to photosensitive drums, and rollers for transferring toner images from photosensitive drums to paper. transfer roller, etc. [0003] As such a conductive rubber roller, a conductive rubber roller having a core iron and a rubber la...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L9/02C08L63/00C08L23/16C08K5/101H01B1/12G03G15/02G03G15/08G03G15/16
Inventor 松井翔平井筒健太平尾浩隆桶谷圭史深江满希子松村成记加藤敦士舟越章人
Owner YAMAUCHI CORP