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公开(公告)号：EP2840111A4
公开(公告)日：2015-11-04
申请号：EP13778771
申请日：2013-04-09
Applicant: BRIDGESTONE CORP
Inventor： ACHIHA KOJI , SAKAMI TAKAHIRO , ITOYAMA TSUYOSHI
CPC classification number: C08J9/103 , C08J9/0023 , C08J2201/026 , C08J2203/04 , C08J2323/16 , C08J2347/00 , C08L23/16
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公开(公告)号：JP2007293092A
公开(公告)日：2007-11-08
申请号：JP2006121896
申请日：2006-04-26
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： SAKAMI TAKAHIRO , TANAKA RYUTA
Abstract: PROBLEM TO BE SOLVED: To provide a transfer roller in which the increase in power supply resistance is restrained.
SOLUTION: The transfer roller 1 includes a shaft 2 and an elastic layer 3 formed along the circumference of the shaft 2. In the transfer roller 1, the elastic layer 3 is formed from a rubber composition, in which carbon black and urea are with a rubber component comprising a formulation of epichlorohydrin rubber and acrylonitrile butadiene rubber, and an increase in the power supply resistance of the transfer roller 1 for twenty-four hours (ΔlogΩ/24 hours) is 0.05 or smaller.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 解决的问题：提供抑制电源电阻增加的转印辊。 转印辊1包括轴2和沿着轴2的圆周形成的弹性层3.在转印辊1中，弹性层3由橡胶组合物形成，其中碳黑和尿素 具有包含表氯醇橡胶和丙烯腈丁二烯橡胶的配方的橡胶组分，并且转印辊1的二十四小时（ΔlogΩ/ 24小时）的电力供应阻力的增加为0.05或更小。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2005148467A
公开(公告)日：2005-06-09
申请号：JP2003386664
申请日：2003-11-17
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： SAKAMI TAKAHIRO , TOYODA KATSUYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a conductive roller capable of preventing the occurrence of bleeding and preventing the increase of energizing resistance from being caused, particularly when it is used as a transfer roller, and an image forming apparatus using the same.
SOLUTION: The conductive roller 10 is equipped with at least a core bar 1 and a foam layer 2 carried on the outer circumference of the core bar 1. The layer 2 contains a main rubber component (A) composed of ECO, EPDM and NBR and a sub rubber component (B) composed of liquid rubber as base material, and the content of the component (B) is 5-20 wt.% of the total amount of the components (A) and (B). Assuming that the component composed of ECO and EPDM of the component (A) is (A1) and the component composed of NBR is (A2), the component (A1) is ≥40 wt.% of the total amount of the components (A1) and (A2). The image forming apparatus is equipped with the roller 10.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种能够防止渗色发生的导电性辊，特别是用作转印辊时，特别是使用该导电性辊的图像形成装置。 解决方案：导电辊10至少配备有芯棒1和承载在芯棒1的外周上的泡沫层2.层2包含由ECO，EPDM组成的主要橡胶组分（A） NBR和由液体橡胶作为基材构成的副橡胶成分（B），成分（B）的含量为组分（A）和（B）总量的5-20重量％。 假设由组分（A）的ECO和EPDM组成的组分为（A1），由NBR组成的组分为（A2），组分（A1）为组分总量的40重量％ ）和（A2）。 图像形成装置配备有辊10.版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005114136A
公开(公告)日：2005-04-28
申请号：JP2003352549
申请日：2003-10-10
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： HATTORI KENJI , SAKAMI TAKAHIRO , TOYODA KATSUYUKI
IPC: G03G15/02 , B29C35/04 , B29K21/00 , B29K105/04 , B29K105/24 , B29L31/32 , F16C13/00
Abstract: PROBLEM TO BE SOLVED: To provide a conductive foaming rubber roller capable of also preventing the contamination of a photosensitive body and its production method that requires little addition of oil quantity by easy method capable of eliminating the process such as the secondary vulcanization, etc.
SOLUTION: The average cell diameter of the foaming rubber is less than 300μm and the hardness of the foaming rubber is less than 30° of Asker C, and the conductive foaming rubber roller is composed so that the addition of oil quantity becomes more than 20phr and less than 45phr. And the conductive foaming rubber roller of the above constitution is manufactured by hot water vulcanization that foams and vulcanizes the non-vulcanized rubber roller after forming under heating and pressurization by hot water.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了提供能够防止感光体污染的导电发泡橡胶辊及其通过简单的方法几乎不需要添加油量的方法，可以消除二次硫化等工艺， 等等。解决方案：发泡橡胶的平均泡孔直径小于300μm，发泡橡胶的硬度小于30℃，导电发泡橡胶辊的组成是使油量增加 超过20phr且小于45phr。 上述结构的导电性发泡橡胶辊是通过热水硫化制造的，在加热加热和热水加压后，对未硫化的橡胶辊进行发泡和硫化。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005075946A
公开(公告)日：2005-03-24
申请号：JP2003308702
申请日：2003-09-01
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： TOYODA KATSUYUKI , HATTORI KENJI , SAKAMI TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a rubber sponge member such as a rubber sponge roller free from the change of outer diameter by the environmental variation after a step to specify the outer diameter such as grinding while keeping desired mechanical properties such as elasticity and provide a method for the production of the sponge member.
SOLUTION: The rubber sponge member is provided with an elastic layer made of a foamed rubber and having cavities in the member. The ratio of the volume of the cavities connected to the surface to the whole volume of the cavities is 10-40%.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种橡胶海绵构件，例如橡胶海绵辊，其不受外径变化，在步骤之后的环境变化来指定外径如研磨，同时保持所需的机械性能如弹性 并提供用于生产海绵构件的方法。 解决方案：橡胶海绵构件设置有由发泡橡胶制成的弹性层，并且在构件中具有空腔。 连接到表面的空腔的体积与空腔的整个体积的比率为10-40％。 版权所有（C）2005，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JPH0762229A
公开(公告)日：1995-03-07
申请号：JP22817193
申请日：1993-08-21
Applicant: BRIDGESTONE CORP
Inventor： SAKAMI TAKAHIRO , MOCHIZUKI TAKAYUKI , UTSUNOMIYA TADASHI
Abstract: PURPOSE:To obtain the subject composition useful as a coating agent for various woven fabrics, paper, etc., having excellent thermal stability, processability, etc., by blending an N-alkoxyalkylated nylon resin with an oxide, a hydroxide, etc., of an alkali (alkaline earth) metal. CONSTITUTION:This composition is obtained by blending 100 pts.wt. of an alkoxyalkylated nylon resin with >=0.1 pt.wt., preferably 1-100 pts.wt. of an oxide, a hydroxide or a metal salt (preferably carbonate, phosphate or organic acid salt) of an alkali (alkaline earth) metal.
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公开(公告)号：JP2009198768A
公开(公告)日：2009-09-03
申请号：JP2008039782
申请日：2008-02-21
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： DOI HIROKAZU , SAKAMI TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a transfer roller, preventing transition of contaminants from the transfer roller to a carrying belt and an intermediate transfer belt as much as possible and surely obtaining a good image even in a high-temperature and high-humidity environment.
SOLUTION: This transfer roller, in performing color printing using an intermediate transfer belt system or tandem system, transfers a toner image formed on a photoreceptor to the intermediate transfer belt or the recording medium by applying voltage to the intermediate transfer belt by contacting with the back of the intermediate transfer belt or a recording medium carrying belt, or applying voltage to a recording medium through the recording medium carrying belt. The transfer roller is characterized by including a conductive elastic layer 52 formed of a rubber composition which includes one or more kinds of rubber selected from nitryl rubber, styrene-butadiene rubber and butadiene rubber and epichlorohydrin rubber, and which is mixed with high resistance oil.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：为了提供转印辊，尽可能地防止污染物从转印辊过渡到承载带和中间转印带，并且即使在高温高压下也可以获得良好的图像， 湿度环境。
解决方案：该转印辊在使用中间转印带系统或串联系统进行彩色印刷时，通过接触向中间转印带施加电压，将形成在感光体上的调色剂图像转印到中间转印带或记录介质上 中间转印带的背面或记录介质输送带，或通过记录介质输送带向记录介质施加电压。 转印辊的特征在于包括由橡胶组合物形成的导电弹性层52，该橡胶组合物包括选自硝基橡胶，苯乙烯 - 丁二烯橡胶和丁二烯橡胶中的一种或多种橡胶和表氯醇橡胶，并且与高电阻油混合。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009157100A
公开(公告)日：2009-07-16
申请号：JP2007335111
申请日：2007-12-26
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： DOI HIROKAZU , SAKAMI TAKAHIRO
IPC: G03G15/16
Abstract: PROBLEM TO BE SOLVED: To provide a transfer roller having improved product reliability by suppressing fluctuation of electric resistance when leaving the roller in a high-temperature and humidity environment.
SOLUTION: The transfer roller includes a shaft and an elastic foam layer carried on the outer circumference of the shaft. The elastic foam layer is composed of foamed rubber containing butyl-based rubber and epichlorohydrin rubber, with addition of quaternary ammonium salt and sodium perchlorate. Butadiene rubber, nitrile rubber or styrene-butadiene rubber is suitable as the butyl-based rubber.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种转印辊，其通过在离开辊子在高温和高湿度环境中时抑制电阻的波动来提高产品可靠性。 解决方案：转印辊包括轴和在轴的外圆周上承载的弹性泡沫层。 弹性泡沫层由含有丁基橡胶和表氯醇橡胶的泡沫橡胶组成，加入季铵盐和高氯酸钠。 丁二烯橡胶，丁腈橡胶或丁苯橡胶适合作为丁基橡胶。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2001142318A
公开(公告)日：2001-05-25
申请号：JP2000103673
申请日：2000-04-05
Applicant: BRIDGESTONE CORP
Inventor： SAKAMI TAKAHIRO , MURATA HIROSHI , UENO TETSUKAZU
Abstract: PROBLEM TO BE SOLVED: To provide an intermediate transfer member and an intermediate transfer device which prevent generation of image inferiority by suppressing elongation of a rubber belt at the time of setting and driving the belt without using a fiber reinforced body while making the most of features which a rubber belt has and which can realize simplification of manufacturing processes and reduction of cost. SOLUTION: The intermediate transfer member of an endless belt shape is disposed between an image forming body and a recording medium, is circularly driven by a driving member, temporarily transfers and holds a toner image formed on an image forming body surface onto its surface and then transfers it onto the recording medium and further is made of whole rubber elastomer having JIS-A hardness of >=65 deg..
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公开(公告)号：JP2001142317A
公开(公告)日：2001-05-25
申请号：JP2000103672
申请日：2000-04-05
Applicant: BRIDGESTONE CORP
Inventor： MURATA HIROSHI , SAKAMI TAKAHIRO , UENO TETSUKAZU
IPC: G03G15/16
Abstract: PROBLEM TO BE SOLVED: To provide an intermediate transfer member which generates no image inferiority caused by physical level difference even when a fiber reinforced body is used and which can realize simplification of manufacturing processes and reduction of cost while making the most of features which a rubber belt has and to provide an intermediate transfer device using the same. SOLUTION: The intermediate transfer member of an endless belt shape is disposed between an image forming body and a recording medium, is circularly driven by a driving member, temporarily transfers and holds a toner image formed on an image forming body surface onto its surface and then transfers it onto the recording medium and further has a fiber layer which is formed by winding strip-shaped fiber in a spiral shape and an elastic layer which is laminated on one side or on both surfaces of the fiber layer.
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