Fluorine-containing Resin In Surface Layer Of Belt Or Roller Patents (Class 430/124.33)
  • Patent number: 10216129
    Abstract: Exemplary embodiments provide a fuser member containing an intermediate layer and methods for forming the intermediate layer and the fuser member. In one embodiment, the fuser member can include a substrate, a resilient layer, a surface layer and an intermediate layer disposed between the resilient layer (e.g., a silicone rubber layer) and the surface layer (e.g., a fluoroplastic of PFA or PTEE). The intermediate layer can include a CNT/polymer composite containing a plurality of carbon nanotubes in a polymer matrix. The surface layer and the fuser member can thus be treated at a temperature of about 250° C. or higher.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: February 26, 2019
    Assignee: XEROX CORPORATION
    Inventors: Yu Qi, Nan-Xing Hu, David J. Gervasi, David C. Irving, Patrick J. Finn
  • Patent number: 9388264
    Abstract: A method for producing a resin composition, comprising the step of: subjecting a radical copolymerization of a first radical polymerizable monomer which is free from any crystalline molecular chain and a second radical polymerizable monomer having a crystalline molecular chain, in the presence of a radical polymerization initiator, wherein the second radical polymerizable monomer is the following compound, (wherein R1 denotes a hydrogen atom or a methyl group, and R2 denotes an alkyl group having at least 17 carbon atoms) the first radical polymerizable monomer has a particular reactivity ratio.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: July 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumichi Nakahama, Keiichiro Tsubaki, Takayuki Hiratani, Akira Kuriyama, Taku Shimoda
  • Patent number: 9383683
    Abstract: A transport mechanism includes: a container that stores a specific developer; a transport body that transports the developer in an axial direction of a shaft about which the transport body rotates in the container while stirring the developer; a bearing that supports the transport body such that the transport body is rotatable about the shaft; and a restricting portion that has a substantially annular shape and a maximum magnetic force of about 20 mT or greater and about 50 mT or smaller and restricts the transportation of the developer past the restricting portion by surrounding the shaft, the restricting portion being provided nearer to a side on which the transport body transports the developer than the bearing in the axial direction of the shaft.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: July 5, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Fumiyuki Honda, Takashi Ochi, Yasuaki Watanabe, Tomoyuki Yoshii, Jun Abe, Toshihiro Kanematsu, Kenta Urayama, Shinji Okuyama
  • Patent number: 8563116
    Abstract: There is described a method for producing a fuser member. The method includes obtaining a substrate and positioning a fluoroplastic sleeve around the substrate. The outer surface of the fluoroplastic sleeve is roughened to a surface roughness of between about 0.03 ?m Ra and about 3 ?m Ra. The outer surface is coated with a functional silicone oil.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: October 22, 2013
    Assignee: Xerox Corporation
    Inventors: Patrick J. Finn, Kenneth R. Rasch
  • Publication number: 20120164570
    Abstract: The present invention is directed towards a fuser member having as its outermost layer, a cured composite comprising: a) a continuous phase of an elastomer; and b) thermally conductive particles dispersed in the elastomer, where the conductive particles comprise inorganic particles coated with a layer of fluoroplastic.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Inventors: Jerry Alan Pickering, Jason Morgan
  • Patent number: 8080359
    Abstract: An objective is to provide an image forming method by which sufficient fixing strength can be obtained at a low temperature of 120° C., excellent print images with no belt-like or streak image defect can be obtained, and no document offsetting is generated even though the superimposed print images are stored. Disclosed is an image forming method comprising the step of fixing a toner image formed with a toner comprising a releasing agent on a transfer material employing a contact-heating fixing device comprising a heating roller and a belt-shaped pressure body, wherein the heating roller is placed on the upper side of the transfer material, the releasing agent comprises the 1st releasing agent component and the 2nd releasing agent component, and the 1st releasing agent component has a content of 40-98% by weight, based on the total weight of the 1st and 2nd releasing agent components.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 20, 2011
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masaharu Matsubara, Asao Matsushima, Noboru Ueda, Go Yamaguchi
  • Patent number: 7991341
    Abstract: An electrophotographic fixing member is provided, which is excellent in toner releasability and hard to change in rubber elasticity of a silicone rubber elastic layer. The fixing member is laminated with a substrate, a cured silicone rubber layer, a cured silicone rubber adhesive layer and a fluorine resin layer, wherein when infrared light absorption strength ratios (1020 cm?1/1260 cm?1) at 1020 cm?1 and 1260 cm?1 determined by sampling the portions of 5 ?m and 20 ?m from the outer surface of the cured silicone rubber layer are taken as ?(5) and ?(20), respectively, a relationship of ?(5) and ?(20) satisfies 1.03??(5)/?(20)?1.30 and ?(20) is 0.8 or more and 1.2 or less.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: August 2, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhisa Matsunaka, Kazuo Kishino, Masaaki Takahashi
  • Patent number: 7947420
    Abstract: An image forming method comprising the steps of: (i) charging a surface of a photoreceptor; (ii) exposing the charged photoreceptor to form an electrostatic latent image; (iii) developing the electrostatic latent image using a toner comprising at least a release agent to form a toner image; (iv) transferring the toner image on the photoreceptor to a transfer material; and (v) fixing the toner image transferred on the transfer material employing a contact-heating fixing devise comprising a pair of belts, wherein the releasing agent comprises a first release agent component containing a monoester compound represented by Formula (1) and a second release agent component containing a hydrocarbon having a branched chain structure, wherein a content of the first release agent is 40 to 98% by mass, based on a total mass of the first release agent component and the second release agent component: R1—COO—R2.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: May 24, 2011
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masaharu Matsubara, Asao Matsushima, Noboru Ueda, Go Yamaguchi, Takayuki Suzuki
  • Publication number: 20100028797
    Abstract: A fuser member including a substrate, and thereover, an outer layer with a fluorinated polymer having a flexible aliphatic segment and a rigid aromatic segment, wherein the aliphatic segment and the aromatic segment are bonded through a linkage group.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: XEROX CORPORATION
    Inventors: Carolyn Moorlag, Nan-Xing Hu
  • Publication number: 20090041517
    Abstract: The presently disclosed embodiments are directed to release fluids or agents that are useful in release coating in toner-based technologies. More particularly, the embodiments pertain to the addition of metal chelating agents to release fluids to prevent byproduct reactions from the fusing process that would otherwise decrease fuser member life and image quality.
    Type: Application
    Filed: October 29, 2008
    Publication date: February 12, 2009
    Applicant: XEROX CORPORATION
    Inventors: John S. Facci, William H. Wayman
  • Patent number: 7381514
    Abstract: A fuser member having a substrate, an outer layer with a fluoropolymer, and a release agent material coating on the outer layer, wherein the release agent material coating contains (a) a blend with a mercapto functional release agent having the following formula II: wherein A represents —R4—X, wherein R4 represents an alkyl group having from about 1 to about 10 carbons, X represents —SH; R1 and R2 are the same or different and each is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, and an arylalkyl; R3 is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, an arylalkyl, and a substituted diorganosiloxane chain having from about 1 to about 500 siloxane units; b and c are numbers and are the same or different and each satisfy the conditions of 1?b?10 and 10?c?1,000 d and d? are numbers and are the same or different and are 2 or 3, and e
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: June 3, 2008
    Assignee: Xerox Corporation
    Inventors: Lynn J. Bluett, Samuel Kaplan, Alexander N. Klymachyov