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    ELECTRICALLY CONDUCTIVE ADHESIVE
    1.
    发明申请
    ELECTRICALLY CONDUCTIVE ADHESIVE 审中-公开

    公开(公告)号：WO2020170154A1

    公开(公告)日：2020-08-27

    申请号：PCT/IB2020/051380

    申请日：2020-02-19

    Applicant: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA

    Inventor： BELLANI, Sebastiano ,  NAJAFI, Leyla ,  ZANI, Pierenrico ,  MARTIN-GARCIA, Beatriz ,  OROPESA-NUÑEZ, Reinier ,  BONACCORSO, Francesco

    IPC: C09J9/02 ,  C09J11/04 ,  C09J11/08 ,  C09J123/08 ,  C08K2201/001 ,  C08K2201/011 ,  C08K2201/014 ,  C08K2201/019 ,  C08K3/04 ,  C08K3/041 ,  C08K3/042 ,  C09J123/0853

    Abstract: An electrically conductive adhesive composition, free of metals and metal salts comprising: - an adhesive component selected from the group consisting of polyethylene-vinyl acetate, elastomer polyolefins, polyvinyl butyral, polyacrylic acid, polyacrylates and poly(methyl methacrylate) in quantities of 5% to 40% by weight and - an electrically conductive component comprising acetylene or carbon black nanoparticles, carbon nanotubes and flakes or plates of graphene or graphene derivatives in quantities of 60 to 95% by weight, the percentages by weight being referred to 100 parts by weight of the adhesive component and electrically conductive component, wherein said electrically conductive component consists of: - acetylene or carbon black nanoparticies from 15 to 45% by weight, - carbon nanotubes from 5 to 25% by weight, and - flakes or plates of graphene or graphene derivatives from 35 to 70% by weight, the percentages by weight being referred to 100 parts by weight of said electrically conductive component, - a solvent compatible with the polymer component in quantities of 50% to 90% by weight referred to 100 parts of the composition consisting of polymer component, electrically conductive component and solvent. The adhesive composition is advantageously used in photovoltaic applications that require welding of components at low temperature and in power-supply or electronic applications that require the mechanical and electrical serial connection of electrodes in batteries, supercapacitors and multi-component electronic systems.

    POLYMER COMPOSITION AND ARTICLES MADE THEREFROM
    6.
    发明申请
    POLYMER COMPOSITION AND ARTICLES MADE THEREFROM 审中-公开

    公开(公告)号：WO2023006415A1

    公开(公告)日：2023-02-02

    申请号：PCT/EP2022/069494

    申请日：2022-07-12

    Applicant: SOLVAY SPECIALTY POLYMERS USA, LLC

    Inventor： ANIM-DANSO, Emmanuel ,  CARVELL, Lee ,  JEOL, Stéphane

    IPC: C08K3/22 ,  C08K3/38 ,  C08K7/04 ,  C08L81/04 ,  C08K2003/2217 ,  C08K2003/2296 ,  C08K2003/385 ,  C08K2201/001 ,  C08K2201/019 ,  C08K3/04

    Abstract: Polymer compositions are provided, and articles made therefrom. The polymer compositions comprise from 25 to 50 wt.% of a thermoplastic polymer; from 10 to 45 wt.% of a thermally conductive filler; from 15 to 30 wt.% of an electrically conductive carbon fiber; and less than 5 wt.% additives. The polymer composition is substantially free of glass fibers. The polymer compositions described herein surprisingly exhibit significantly improved thermal conductivity relative to analogous polymer compositions in which the carbon fiber is replaced by glass fiber. Further, even though carbon fiber has a significantly higher electrical conductivity relative to glass fiber, the polymer compositions exhibit no appreciable loss of volume resistivity relative to analogous polymer compositions in which carbon fiber is replaced by glass fiber.

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