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    Oxidation of graphene and carbon nanotubes
    41.
    发明专利
    Oxidation of graphene and carbon nanotubes 未知

    公开(公告)号：GB2498054B

    公开(公告)日：2014-03-12

    申请号：GB201221175

    申请日：2012-11-26

    Applicant: IBM

    Inventor： CHANDRA BHUPESH ,  AFZALI-ARDAKANI ALI ,  TULEVSKI GEORGE STOJAN

    IPC: C01B31/02

    Abstract: A process comprises combining a Ce (IV) salt with a carbon material comprising CNT or graphene wherein the Ce (IV) salt is selected from a Ce (IV) ammonium salt of a nitrogen oxide acid and is dissolved in a solvent comprising water. The process is conducted under conditions to substantially oxidize the carbon material to produce an oxidized material that is substantially non-conducting. After the oxidation, the Ce (IV) is substantially removed from the oxidized material. This produces a product made by the process. An article of manufacture comprises the product on a substrate. The oxidized material can be formed as a pattern on the substrate. In another embodiment the substrate comprises an electronic device with the oxidized material patterning non-conductive areas separate from conductive areas of the non-oxidized carbon material, where the conductive areas are operatively associated with the device.

    STRUCTURES FABRICATED WITH CROSS-LINKED BIOBASED MATERIALS
    42.
    发明专利
    STRUCTURES FABRICATED WITH CROSS-LINKED BIOBASED MATERIALS 未知

    公开(公告)号：MY119902A

    公开(公告)日：2005-08-30

    申请号：MYPI9603557

    申请日：1996-08-27

    Applicant: IBM

    Inventor： AFZALI-ARDAKANI ALI ,  GELORME JEFFREY D ,  KOSBAR LAURA L

    IPC: H05K1/03

    Abstract: BIOBASED CROSS-LINKED COMPOSITIONS, METHODS OF FABRICATION AND STRUCTURES, IN PARTICULAR BIOBASED PRINTED WIRING BOARDS USING THE COMPOSITIONS AND METHODS OF MAKING THE STRUCTURES ARE DESCRIBED. BIOBASED MATERIALS SUCH AS LIGNIN, CROP OILS, WOOD RESINS, TANNINS, AND POLYSACCHARIDES AND COMBINATIONS THEREOF ARE CROSS-LINKED, PREFERABLY USING HEAT, A CROSS-LINKING AGENT, AND AN INITIATOR. THE MATERIALS FABRICATED HAVE SUITABLE PROPERTIES FOR PRINTED WIRING BOARDS WHICH ARE MADE BY IMPREGNATING A FIBERGLASS OR BIOBASED CLOTH WITH AN ADMIXTURE OF THE BIOBASED MATERIAL, CROSS-LINKING AGENT AND INITIATOR WHICH IS PROCESSED BY CONVENTIONAL METHODS TO PRODUCE A PRINTED WIRING BOARD.

    48.
    发明专利
    未知

    公开(公告)号：DE3878393T2

    公开(公告)日：1993-08-12

    申请号：DE3878393

    申请日：1988-09-09

    Applicant: IBM

    Inventor： AFZALI-ARDAKANI ALI ,  DESAI MUKESH ,  FACTOR BRADFORD J ,  HOEKSTRA JAN-PIETER ,  PENNINGTON KEITH S

    IPC: B41M5/382 ,  B41C1/055 ,  B41C1/06 ,  B41C1/10 ,  B41J2/42 ,  B41M5/26 ,  G01D15/10 ,  H05K3/04 ,  B41M5/24

    Abstract: An improved apparatus and process are described in which metal images are transferred to a softenable receiving layer (32) using commercially available multi-stylus recording heads (10). The transfer medium is comprised of a resistive layer (16) and a thin metal layer (14) thereon. Electrical currents are provided by the recording styli (18) of the multi-stylus recording head. Localized electrical currents in the resistive layer (16) provide sufficient heat in the metal layer (14) to soften regions of a meltable receiving layer (32) when it is brought into contact with said heated metal layer. Metal imaging for use in printed circuit board manufacture and in formation of printing masters can be transferred by this technique.

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