Synthetic Resin Patents (Class 252/62.54)
  • Patent number: 8496725
    Abstract: The invention relates to a composition for producing magnetic or magnetizable moldings, comprising from 95.5 to 98.95% by weight of a powder made of a magnetic or magnetizable material, from 1.0 to 4% by weight of a mixture made of at least one epoxy-novolak resin, and also of at least one hardener, and comprising from 0.05 to 0.5% by weight of at least one additive, based in each case on the total weight of the composition. The mixture made of the at least one epoxy-novolak resin and of the at least one hardener comprises from 85 to 95% by weight of the epoxy-novolak resin and from 5 to 15% by weight of hardener. The hardener has been selected from (cyclo)aliphatic amines and their adducts, polyamides, Mannich bases, amidoamines, phenolic resins, imidazoles, and imidazole derivatives, dicyandiamide, and BF3-monoethanolamine. The invention further relates to a process for producing the composition, and also to a process for producing a molding made of the composition.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: July 30, 2013
    Assignee: BASF SE
    Inventors: Carsten Blettner, Jürgen Kaczun, Ria Kress, Dag Wiebelhaus
  • Publication number: 20130181802
    Abstract: Provided are a soft magnetic powder for obtaining a dust core having a low iron loss, the dust core, and a method for producing a dust core. The present invention relates to a soft magnetic powder including a plurality of soft magnetic particles, each having an insulating layer. The Vickers hardness HV0.1 of a material constituting the soft magnetic particles is 300 or more, and the insulating layer contains Si, O, and at least one of an alkali metal and Mg. As long as the soft magnetic powder has such features, a material having a high electric resistance, such as an iron-based alloy, can be used. The eddy current loss can be reduced, and it is possible to effectively obtain a dust core having a low iron loss.
    Type: Application
    Filed: October 25, 2011
    Publication date: July 18, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Asako Watanabe, Toru Maeda, Tomoyuki Ueno, Tomoyuki Ishimine
  • Publication number: 20130168598
    Abstract: A method for making a carbon nanotube composite film is provided. A PVDF is dissolved into a first solvent to form a PVDF solution. A number of magnetic particles is dispersed into the PVDF solution to form a suspension. A carbon nanotube film is immersed into the suspension and then transferred into a second solvent. The carbon nanotube film structure is transferred from the second solvent and dried to form the carbon nanotube composite film.
    Type: Application
    Filed: August 7, 2012
    Publication date: July 4, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: WEI XIONG, JIA-PING WANG, KAI-LI JIANG, SHOU-SHAN FAN
  • Publication number: 20130169488
    Abstract: A new magnetic substance having a high magnetic permeability and a low magnetic permeability loss over a wide frequency bandwidth, a composite material for antennas using the new magnetic substance and a polymer, and an antenna using the composite material for antennas.
    Type: Application
    Filed: September 6, 2012
    Publication date: July 4, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-sig KUM, Nak-hyun KIM, Hyun-jin KIM, Seung-kee YANG, Joong-hee LEE
  • Patent number: 8475922
    Abstract: According to one embodiment, there is provided a nanoparticle composite material, including nanoparticle aggregates in a shape having an average height of 20 nm or more and 2 ?m or less and having an average aspect ratio of 5 or more, the nanoparticle aggregates including metal nanoparticles having an average diameter of 1 nm or more and 20 nm or less and containing at least one magnetic metals selected from the group consisting of Fe, Co and Ni and binder existing between the nanoparticle aggregates.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 2, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro Suetsuna, Seiichi Suenaga, Tomoko Eguchi, Koichi Harada, Maki Yonetsu, Yasuyuki Hotta, Toshihide Takahashi
  • Patent number: 8470194
    Abstract: A Ni—Zn—Cu ferrite material having excellent DC bias characteristics is provided by adding zinc silicate thereto. The above problem can be solved by Ni—Zn—Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol % of Fe2O3, 7.0 to 38 mol % of NiO, 4.5 to 40 mol % of ZnO, 5.0 to 17 mol % of CuO and 1.0 to 8.0 mol % of SiO2, all amounts being calculated in terms of the respective oxides, and which have a ratio of an X-ray diffraction intensity from a 113 plane of the zinc silicate to an X-ray diffraction intensity from a 311 plane of the spinel-type ferrite is 0.01 to 0.12; a green sheet obtained by forming a material comprising the Ni—Zn—Cu ferrite particles into a film; and a Ni—Zn—Cu ferrite sintered ceramics.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 25, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Yoji Okano, Tomohiro Dote, Norio Sugita
  • Publication number: 20130153815
    Abstract: The present invention relates to a polymer functionalized with a dye, a nanoparticle comprising the dye-functionalized polymer on its surface, as well as to methods of preparing the same. In particular, it relates to a bimodal imaging agent, comprising said nanoparticles functionalized with a polymer bearing a dye with luminescence properties, and fabrication methods of the same.
    Type: Application
    Filed: November 23, 2012
    Publication date: June 20, 2013
    Applicant: Agency for Science, Technology and Research
    Inventor: Agency for Science, Technology and Research
  • Patent number: 8465663
    Abstract: A composition for electromagnetic wave suppression and heat radiation includes: a matrix composed of a high molecular material or a low molecular material; and a magnetic particle filled in the matrix upon mixing a magnetic powder having a relation of {(tap density)/density}?0.58 with the matrix.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: June 18, 2013
    Assignee: Sony Corporation
    Inventors: Yoshihiro Kato, Kazuhiko Suzuki, Tatsuo Kumura, Yusuke Kubo
  • Publication number: 20130149772
    Abstract: Magnetic ion-exchange polymer microspheres and a method for preparing the same are provided. The method for preparing the magnetic ion-exchange polymer microspheres includes swelling the ion-exchange resins and allowing the magnetic nano-particles to enter the interior of the ion-exchange resins. The magnetic ion-exchange resins of the present invention have various functional groups can be introduced onto the surfaces thereof. Therefore, the magnetic ion-exchange resins of the present invention can be applied in many areas, and thereby they have high economic value.
    Type: Application
    Filed: May 29, 2012
    Publication date: June 13, 2013
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Wen-Chien Lee, Yu-Zong Lin, Yu-Sheng Lin, Tzu-Hsien Wang
  • Publication number: 20130146801
    Abstract: In one embodiment of the disclosure, a composite material with conductive and ferromagnetic properties is provided. The composite material includes: 5 to 90 parts by weight of a conductive polymer matrix; and 0.1 to 40 parts by weight of iron oxide nanorods, wherein the iron oxide nanorods are ferromagnetic and have a length-to-diameter ratio of larger than 3. In another embodiment, a hybrid slurry is provided. The hybrid slurry includes a conductive polymer, and iron oxide nanorods, wherein the iron oxide nanorods are ferromagnetic and have a length-to-diameter ratio of larger than 3; and a solvent.
    Type: Application
    Filed: May 24, 2012
    Publication date: June 13, 2013
    Inventors: Ying-Ting HUANG, Mu-Jen Young, Jinn-Jong Wong, Guang-Way Jang
  • Publication number: 20130130026
    Abstract: The invention relates to a polymer composite having magnetic properties that are enhanced or increased in the composite. Such properties include color, thermal conductivity, electrical conductivity, density, improved malleability and ductility viscoelastic and thermoplastic or injection molding properties.
    Type: Application
    Filed: January 21, 2013
    Publication date: May 23, 2013
    Applicant: TUNDRA COMPOSITES, LLC
    Inventor: Tundra Composites, LLC
  • Patent number: 8444872
    Abstract: Disclosed is a magnetic material having high Hc and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ?-AxByFe2?x?yO3 or ?-AxByCzFe2?x?y?zO3 (wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0<x, y, z<1), with ?-Fe2O3 as a main phase.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 21, 2013
    Assignees: The University of Tokyo, Dowa Electronics Materials Co., Ltd.
    Inventors: Shin-ichi Ohkoshi, Shunsuke Sakurai, Takenori Yorinaga, Kazuyuki Matsumoto, Shinya Sasaki
  • Publication number: 20130119419
    Abstract: Magnetically adjusting color-converting particles within a matrix and associated devices, systems, and methods are disclosed herein. A magnetic-adjustment process can include applying a magnetic field to a mixture including a non-solid matrix and a plurality of color-converting particles (e.g. magnetically anisotropic color-converting particles). The magnetic field can cause the plurality of color-converting particles to move into a generally non-random alignment (e.g., a generally non-random magnetic alignment and/or a generally non-random shape alignment) within the non-solid matrix. The non-solid matrix then can be solidified to form a solid matrix. A magnetic-adjustment process can be performed in conjunction with testing and/or product binning of solid-state radiation transducer devices.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Sameer S. Vadhavkar, Tim J. Corbett, Xiao Li
  • Publication number: 20130112911
    Abstract: A nanoparticle composition comprises a ferromagnetic or superparamagnetic metal nanoparticle, and a functionalized carbonaceous coating on a surface of the ferromagnetic or superparamagnetic metal nanoparticle. A magnetorheological fluid comprises the nanoparticle composition.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Terry R. Bussear, Michael H. Johnson
  • Publication number: 20130099151
    Abstract: A coated magnetic particle comprising an optionally porous magnetic polymer particle of a matrix polymer, said polymer particle having on a surface and/or in the pores thereof superparamagnetic crystals, said coated particle having a coat formed of a coating polymer, wherein said coated magnetic particle is essentially non-autofluorescent.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 25, 2013
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventor: LIFE TECHNOLOGIES CORPORATION
  • Publication number: 20130087736
    Abstract: The invention provides a method of preparing an aqueous dispersion of polymer encapsulated particulate material, the method comprising: providing a dispersion of the particulate material in a continuous aqueous phase, the dispersion comprising RAFT agent as a stabiliser for the particulate material; and polymerising ethylenically unsaturated monomer under the control of the RAFT agent to form polymer at the surface of the dispersed particulate material, thereby providing the aqueous dispersion of polymer encapsulated particulate material; wherein polymerisation of the ethylenically unsaturated monomer comprises: (a) polymerising a monomer composition that includes ionisable ethylenically unsaturated monomer so as to form a base responsive water swellable RAFT polymer layer that encapsulates the particulate material; and (b) polymerising a monomer composition that includes non-ionisable ethylenically unsaturated monomer so as to form an extensible, water and base permeable RAFT polymer layer that encapsul
    Type: Application
    Filed: December 1, 2010
    Publication date: April 11, 2013
    Applicant: THE UNIVERSITY OF SYDNEY
    Inventors: Matthew P. Baker, Timothy W. Davey, Brian S. Hawkett, Duc N. Nguyen, Caitlin C. O'Brien, Christopher H. Such
  • Patent number: 8409463
    Abstract: The invention discloses an aqueous method of making polymer coated superparamagnetic nanoparticles. The method comprises providing a mixture of iron salts in an aqueous solution of hydrochloric acid. A solution of ammonium hydroxide is added to the mixture and stirred. Stirring continues with an aqueous solution of one or more biocompatible polymers so as to promote formation of polymer coated iron nanoparticles in suspension, wherein optionally at least one of the polymers in the coating may be aminated. Centrifuging the suspension leaves a supernatant without large particles. Filtering the supernatant through an ultrafiltration membrane and collecting the filtrate recovers polymer coated nanoparticles. Crosslinking the polymer is effected by treatment with a solution of epichlorohydrin and sodium hydroxide while stirring vigorously for up to about eight hours. Optionally aminating the polymer may be accomplished by treatment with ammonia after crosslinking and then removing remaining free epichlorohydrin.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: April 2, 2013
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Jesus Manuel Perez, Sudip Nath
  • Patent number: 8404141
    Abstract: A rare earth bonded magnet is provided which is produced such that a mixture which comprises: a rare earth magnet powder; a resin binder comprising a thermosetting resin; an organic phosphorus compound; and a coupling agent is compress-molded, heated and cured, wherein the organic phosphorus compound and the coupling agent are represented by the following respective chemical formulas (structural formulas):
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: March 26, 2013
    Assignee: Minebea Co., Ltd.
    Inventors: Noboru Menjo, Kinji Uchiyama, Yuki Takeda
  • Publication number: 20130062286
    Abstract: The present invention relates to a method for obtaining materials based on treating solids by interaction with ferrofluids to give the final product a superparamagnetic behaviour at a moderate temperature. Said superparamagnetic materials are the result of the assembly of metal oxide nanoparticles associated to a compound with a surfactant effect, such as oleic acid, which are provided by a non-aqueous ferrofluid to different types of solids, preferably having adsorbent, absorbent or reactant and product support properties. The invention also relates to the material obtained by this procedure and its use in various applications such as adsorbents, sensors, ion exchangers the removal of toxic or radioactive contaminants, in chromatographic separation processes, in medical and biological applications, as carriers of biologically derived materials such as enzymes, as polymer fillers, absorption of electromagnetic radiation, as well as metal oxide and catalyst precursors.
    Type: Application
    Filed: March 7, 2011
    Publication date: March 14, 2013
    Applicant: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC)
    Inventors: Eduardo Ruiz Hitzky, María Pilar Aranda Gallego, Yorexis González Alfaro
  • Publication number: 20130056672
    Abstract: A part is manufactured by introducing magnetic particles into a matrix material, and orienting the particles by coupling them with an electromagnetic field. The matrix material is solidified in patterned layers while the particles remain oriented by the field.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 7, 2013
    Applicant: THE BOEING COMPANY
    Inventors: Scott Robert Johnston, Jonathan Blake Vance, James William Fonda, Brett Ian Lyons
  • Publication number: 20130058870
    Abstract: The invention relates to nanocrystals, containing one or more metals as defined in the specification; having a size of 2 to 200 nm; having a defined, three-dimensional polyhedral structure, optionally functionalized by ligands and/or embedded crystals. The invention further relates to monodisperse assemblies of such nanocrystals, to formulations and devices comprising such nanocrystals as well as to the manufacture and use thereof.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 7, 2013
    Applicant: ETH ZURICH
    Inventors: Christophe Jan Lacroix, Christophe Chassard, Marcus Yaffee
  • Publication number: 20130056673
    Abstract: Disclosed is an electromagnetic wave-absorbing composite. To make the electromagnetic wave-absorbing composite, barium ferrite (BaFe12O19) and barium titanate (BaTiO3) are added into aniline during polymerization of the aniline. Thus, a core-shell structure is formed. The core-shell structure includes a magnetic/dielectric core and a conductive shell for covering the magnetic/dielectric core.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 7, 2013
    Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Cheng-Chien Yang, Kuo-Hui Wu
  • Publication number: 20130043423
    Abstract: The present disclosure relates to coating formulations for neodymium-iron-boron type magnetic powders manufactured from rapid solidification processes for the purpose, inter alia, of corrosion and oxidation resistance when exposed to aggressive environments. The coating formulation preferably contains an epoxy binder, curing agent, an accelerating agent, and a lubricant. By incorporating coupling agents and optionally, other specialty additives with the magnetic powder and the organic epoxy components, additional oxidation and corrosion prevention, enhanced adhesion and dispersion between the filler and matrix phases can be achieved. This disclosure relates to all such rare earth-transition metal-boron (RE-TM-B) powders produced by rapid solidification and encompasses both the bonded magnet products that include combinations of the materials mentioned and the application processes.
    Type: Application
    Filed: October 18, 2012
    Publication date: February 21, 2013
    Applicant: MAGNEQUENCH, INC.
    Inventor: MAGNEQUENCH, INC.
  • Patent number: 8354037
    Abstract: To provide a high-frequency magnetic material having a superior radio wave absorption property in a high frequency region and a method of manufacturing the same. The high-frequency magnetic material and the method of manufacturing the same includes a magnetic substance containing metal nanoparticles, the metal nanoparticles are magnetic metals containing at least one kind of Fe, Co, and Ni, an average particle diameter of the metal nanoparticles is equal to or less than 200 nm, first clusters having network-like structures with continuous metal nanoparticles and the average diameter equal to or less than 10 ?m are formed, second clusters having network-like structures with the continuous first clusters and the average diameter equal to or less than 100 ?m are formed, and the entire magnetic substance has a network-like structure with the continuous second clusters.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 15, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kouichi Harada, Tomohiro Suetsuna, Seiichi Suenaga
  • Publication number: 20120319030
    Abstract: Disclosed is a multifunctional colloidal nanocomposite derived from nucleophilic substitution-induced layer-by-layer assembly in organic media. The multifunctional colloidal nanocomposite includes: silica colloids coated with aminopropyltrimethoxysilane; and a plurality of nanoparticle layers highly densely adsorbed onto the coated silica colloids. The multifunctional colloidal nanocomposite has a highly dense multilayer structure in which 2-bromo-2-methylpropionic acid (BMPA)-stabilized quantum dot nanoparticles and an amine-functionalized polymer are adsorbed onto silica colloids using a nucleophilic substitution reaction-based layer-by-layer assembly method. Due to this structure, the multifunctional colloidal nanocomposite can be dispersed in various organic solvents, including polar and nonpolar organic solvents.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 20, 2012
    Inventor: Jin Han CHO
  • Patent number: 8329056
    Abstract: Anisotropic rare earth-iron based resin bonded magnet comprises: [1] a continuous phase including: (1) a spherical Sm2Fe17N3 based magnetic material covered with epoxy oligomer where its average particle size is 1 to 10 ?m, its average aspect ratio ARave is 0.8 or more, and mechanical milling is not applied after Sm—Fe alloy is nitrided; (2) a linear polymer with active hydrogen group reacting to the oligomer; and (3) additive; and [2] a discontinuous phase being an Nd2Fe14B based magnetic material coated with the epoxy oligomer where its average particle size is 50 to 150 ?m, and its average aspect ratio ARave is 0.65 or more, further satisfying: [3] the air-gap ratio of a granular compound on the phases is 5% or less; and [4] a composition where crosslinking agent with 10 ?m or less is adhered on the granular compound is formed at 50 MPa or less.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 11, 2012
    Assignee: Minebea Co., Ltd.
    Inventors: Fumitoshi Yamashita, Osamu Yamada, Shiho Ohya
  • Publication number: 20120305491
    Abstract: The present disclosure relates to magnetic nanocomposite materials, and processes for the production thereof. In particular, the present disclosure relates to nanocomposites comprising magnetic nanoparticles surrounded by a polymer, which is bonded to a biodegradable polymer.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Inventor: Khashayar Ghandi
  • Publication number: 20120292554
    Abstract: Provided is an electromagnetic wave absorbent material comprising a magnetic film as the main constituent thereof. The magnetic film comprises a titania nanosheet where a 3d magnetic metal element is substituted at the titanium lattice position. The electromagnetic wave absorbent material stably and continuously exhibits electromagnetic wave absorption performance in a range of from 1 to 15 GHz band and is useful as mobile telephones, wireless LANs and other mobile electronic instruments. The absorbent material can be fused with a transparent medium and is applicable to transparent electronic devices such as large-sized liquid crystal TVs, electronic papers, etc.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 22, 2012
    Inventors: Minoru OSADA, Takayoshi Sasaki
  • Patent number: 8313666
    Abstract: There is provided novel curable ink compositions comprising polymer-coated magnetic metal nanoparticles. In particular, there is provided ultraviolet (UV) curable gel inks comprising at least the coated magnetic metal nanoparticles, one curable monomer, a radiation activated initiator that initiates polymerization of curable components of the ink, a gellant. The inks may also include optional colorants and one or more optional additives. These curable gel UV ink compositions can be used for ink jet printing in a variety of applications.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 20, 2012
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Naveen Chopra, Barkev Keoshkerian, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120286191
    Abstract: The present invention provides a powder for a magnetic member being excellent in moldability and difficult to oxidize, a powder compact produced from the powder, and a magnetic member suitable for a raw material of a magnetic member such as a rare earth magnet. A powder for a magnetic member includes magnetic particles 1 which constitute the powder for a magnetic member and each of which is composed of less than 40% by volume of a hydrogen compound 3 of a rare earth element, and the balance composed of an iron-containing material 2 which contains iron and an iron-boron alloy containing iron and boron. The hydrogen compound 3 of a rare earth element is dispersed in a phase of the iron-containing material 2. An antioxidant layer 4 having a low-oxygen permeability coefficient is provided on the surface of each of the magnetic particles 1.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 15, 2012
    Applicant: Sumitomo Electric Industries,Ltd.
    Inventors: Toru Maeda, Asako Watanabe
  • Patent number: 8303837
    Abstract: A rotating machine comprising a sintered ferrite magnet having an M-type ferrite structure, comprising Ca, an R element that is at least one of rare earth elements and indispensably includes La, Ba, Fe and Co as indispensable elements, and having a composition represented by the formula: Ca1-x-yRxBayFe2n-zCoz, wherein (1?x?y), x, y, z and n represent the contents of Ca, the R element, Ba and Co, and a molar ratio, meeting 0.3?1?x?y?0.65, 0.2?x?0.65, 0.001?y?0.2, 0.03?z?0.65, 4?n?7, and 1?x?y>y; a bonded magnet comprising ferrite powder having the above composition and a binder, and a magnet roll, at least one magnetic pole portion of which is made of the above bonded magnet.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: November 6, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takashi Takami, Hiroshi Iwasaki, Yoshinori Kobayashi, Naoki Mochi, Ryuji Gotoh
  • Patent number: 8303838
    Abstract: There is provided novel curable ink compositions comprising inorganic oxide-coated magnetic metal nanoparticles. In particular, there is provided ultraviolet (UV) curable gel inks comprising at least the inorganic oxide-coated magnetic metal nanoparticles, one curable monomer, a radiation activated initiator that initiates polymerization of curable components of the ink. In particular the ink may include a gellant. The inks may also include optional colorants and one or more optional additives. These curable UV ink compositions can be used for ink jet printing in a variety of applications.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 6, 2012
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Naveen Chopra, Barkev Keoshkerian, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120270043
    Abstract: An adhesive composition for slide rail exhibits excellent workability in attaching a slide rail to a vehicle body and has a strong adhesive force after heating, the magnetic force of which can be lowered, which sustains the strong adhesive force after heating and then returning to room temperature so as to allow the firm fixation of the slide rail to the vehicle body, and which can lower the volume of the noise caused by opening/closing of a door. Specifically disclosed is an adhesive composition for slide rail which includes a hot-melt adhesive and a ferromagnetic substance, wherein the composition shows a density at 20° C. of 1.4-4.5 g/cm3 and has such magnetic properties that the magnetic force of an adhesive sheet, that is obtained by molding the composition, at a position 1 cm apart from the surface of the adhesive sheet is 10 mT or more.
    Type: Application
    Filed: September 3, 2010
    Publication date: October 25, 2012
    Applicant: LINTEC CORPORATION
    Inventors: Yoshitomo Ono, Tadahiro Tominou, Yumiko Amino, Shigeyuki Yaguchi
  • Publication number: 20120269737
    Abstract: [Object] To provide a polymer coated ferrite fine particles being possible to control a particle size uniformly while having high aqueous dispersibility and preferred biomolecule immobilization ability and an easy method for preparing the same. [Means Addressing Object] In an aqueous solvent, iron ion is protected by chelating polyacrylic acid and then alkaline is added. Thereafter, a reaction system is heated under pressurized condition to produce simultaneous precipitation of the ferrite fine particles and coating thereof. As the result, the polymer coated ferrite fine particles having uniform particle size may be prepared in one step with excellent reproducibility. The polymer coated ferrite fine particles of the present invention has high water dispersibility and has preferred biomolecule immobilization performance by carboxyl groups coming from the polyacrylic acid.
    Type: Application
    Filed: October 28, 2010
    Publication date: October 25, 2012
    Applicant: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Hiroshi Handa, Mamoru Hatakeyama, Satoshi Sakamoto, Hiroshi Kishi
  • Patent number: 8288458
    Abstract: An aggregate of functional particles includes a plurality of functional particles and an insulating material for covering the plurality of functional particles, and a large number of aggregates of functional particles are filled in a resin. Alternatively, insulating functional particles are added to the plurality of functional particles by an amount less than 50% of that of the functional particles in volume ratio.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: October 16, 2012
    Assignee: Nippon Kagaku Yakin Co., Ltd.
    Inventors: Kiyotaka Matsukawa, Kozo Ishihara, Kazuhiro Masano, Toshikazu Tanaka
  • Patent number: 8282852
    Abstract: A magnetorheological (MR) fluid is described herein. The MR fluid includes a plurality of magnetizable particles having a particle density. The fluid also includes a carrier fluid having a fluid density, and the plurality of magnetizable particles is dispersed within the carrier fluid. A portion of the plurality of magnetizable particles has a particle density that is substantially the same as the fluid density. The MR fluid may include a plurality of magnetizable particles having an outer shell of a magnetizable material and a hollow core. The MR fluid may also include a plurality of magnetizable particles having an outer shell of a magnetizable material and a solid core. The MR fluid may include a plurality of magnetizable particles having a matrix and a plurality of sub-particles embedded therein. The core or matrix of these particles may include a ceramic, glass or polymer, or a combination thereof.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: October 9, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Prabhakar Marur
  • Patent number: 8282851
    Abstract: The invention relates to a cellular elastomer which is anisotropic, with anisotropy being defined by the compressive modulus in one of three orthogonal directions being greater than that in the other two directions by a factor of at least 1.5. The invention also relates to a cellular elastomer containing magnetizable particles which have a chain-like alignment along one spatial direction. The invention also relates to a process for producing a cellular elastomer containing magnetiable particles and the use of such elastomers in articles of manufacture.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 9, 2012
    Assignee: BASF SE
    Inventors: Joern Duwenhorst, Maximilian Ruellmann, Frank Prissok, Sven Lasai, Steffen Mayer, Michael Harms, Claus Gabriel
  • Publication number: 20120249375
    Abstract: A material contains a curable liquid polymer containing suspended nanoparticles capable of exhibiting a magnetic property. The nanoparticles are present in a concentration sufficient to cause the curable liquid polymer to flow in response to application of a magnetic field, enabling the material to be guided into narrow regions to completely fill such regions prior to the polymer being cured. A method includes applying a filler material to at least one component, the filler material including a heat curable polymer containing nanoparticles, and applying an electromagnetic field to at least part of the filler material. The nanoparticles contain a core capable of experiencing localized heating sufficient to at least partially cure surrounding polymer. Also disclosed is an assembly for use at radio frequencies. The assembly includes a substrate and at least one component supported by the substrate.
    Type: Application
    Filed: May 23, 2008
    Publication date: October 4, 2012
    Inventors: Markku T. Heino, Reijo K. Lehtiniemi, Markku A. Oksanen, Eira T. Seppala, Pekka Martti Tapio Ikonen, Robin H.A. Ras, Jaakko Timonen, Maija Pohjakallio, Christoffer Johans
  • Patent number: 8277679
    Abstract: The object of the present invention is to provide a composite magnetic material having well-balanced magnetic properties and chemical properties, and a magnetic element using thereof. Concretely, the present provides the composite magnetic material comprising a binder and a magnetic powder contains followings: Mn not less than 0.25 wt % and not larger than 3 wt %, Si not less than 1 wt % and not larger than 7 wt %, Cr not less than 2 wt % and not larger than 8 wt %, and the rest of Fe and inevitable impurities with respect to the total weight of a magnetic powder material, and a ratio of powder particles having the major/minor axis is not less than 2 is not larger than 5% of the total powder particles.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: October 2, 2012
    Assignee: Sumida Corporation
    Inventors: Akihiko Nakamura, Keisuke Watanabe
  • Patent number: 8277678
    Abstract: A magnetic composition for power conversion includes a thermoplastic polymer and magnetic powders. The composition has a tensile strength of greater than 20 N/mm2.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 2, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Ka Wai Eric Cheng, Yuen Wah Wong, Wei Tai Wu, Kai Ding, Yiu Lun Ho, Tsz Kong Cheung, Chi Keong Cheong
  • Publication number: 20120244065
    Abstract: Disclosed is a magnetic catalyst formed by a single or multiple nano metal shells wrapping a carrier, wherein at least one of the metal shells is iron, cobalt, or nickel. The magnetic catalyst with high catalyst efficiency can be applied in a hydrogen supply device, and the device can be connected to a fuel cell. Because the magnetic catalyst can be recycled by a magnet after generating hydrogen, the practicability of the noble metals such as Ru with high catalyst efficiency is dramatically enhanced.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chan-Li HSUEH, Cheng-Hong LIU, Jie-Ren KU, Ya-Yi HSU, Cheng-Yen CHEN, Reiko OHARA, Shing-Fen TSAI, Chien-Chang HUNG, Ming-Shan JENG
  • Publication number: 20120236092
    Abstract: A phase change magnetic ink and process for preparing same including comprising a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a polymer coated magnetic nanoparticle comprising a magnetic core and a polymeric shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120236091
    Abstract: A phase change magnetic ink including a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a surfactant coated magnetic nanoparticle comprising a magnetic core and a shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120236065
    Abstract: Disclosed is a curable magnetic ink comprising (a) an ink carrier which comprises at least one curable monomer, oligomer, or prepolymer; (b) at least one initiator; and (c) carbon-coated magnetic nanoparticles, said ink being curable upon exposure to radiation. Also disclosed is a process for printing with the ink.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Naveen Chopra, Barkev Keoshkerian, Peter G. Odell
  • Publication number: 20120236088
    Abstract: A phase change magnetic ink including a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a carbon coated magnetic nanoparticle comprising a magnetic core and a carbon shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Peter G. Odell, Richard P.N. Veregin, Marcel P. Breton
  • Publication number: 20120235076
    Abstract: There is provided novel curable ink compositions comprising inorganic oxide-coated magnetic metal nanoparticles. In particular, there is provided ultraviolet (UV) curable gel inks comprising at least the inorganic oxide-coated magnetic metal nanoparticles, one curable monomer, a radiation activated initiator that initiates polymerization of curable components of the ink. In particular the ink may include a gellant. The inks may also include optional colorants and one or more optional additives. These curable UV ink compositions can be used for ink jet printing in a variety of applications.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Naveen Chopra, Barkev Keoshkerian, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120236089
    Abstract: A phase change magnetic ink and process for preparing same including comprising a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a coated magnetic nanoparticle comprising a magnetic core and a shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120235074
    Abstract: Solvent-based ink compositions which can be used for ink jet printing in a variety of applications. In particular, the present embodiments are directed to magnetic inks having desirable ink properties. The ink of the present embodiments comprise magnetic nanoparticles that are coated with various materials to prevent the exposure of the nanoparticles to oxygen, and provides robust prints.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: XEROX CORPORATION
    Inventors: GABRIEL IFTIME, Peter G. Odell, C. Geoffrey Allen, Marcel P. Breton, Richard P. N. Veregin
  • Publication number: 20120234488
    Abstract: One embodiment includes a magnetic particle-containing adhesive an adhesive including a polymer resin having a softening temperature; and magnetic particles dispersed within the polymer resin.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 20, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John C. Ulicny, Paul E. Krajewski, Mark A. Golden, Keith S. Snavely
  • Publication number: 20120235078
    Abstract: There is provided novel curable ink compositions comprising polymer-coated magnetic metal nanoparticles. In particular, there is provided ultraviolet (UV) curable gel inks comprising at least the coated magnetic metal nanoparticles, one curable monomer, a radiation activated initiator that initiates polymerization of curable components of the ink, a gellant. The inks may also include optional colorants and one or more optional additives. These curable gel UV ink compositions can be used for ink jet printing in a variety of applications.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Naveen Chopra, Barkev Keoshkerian, Peter G. Odell, Marcel P. Breton