PRODUCTION METHOD FOR COMPOSITE RESIN PARTICLES, AND COMPOSITE RESIN PARTICLES

    公开(公告)号:US20210301089A1

    公开(公告)日:2021-09-30

    申请号:US17264063

    申请日:2019-07-25

    Abstract: An object of the present invention is to provide a production method for composite resin particles containing a fluororesin and a carbon nanomaterial and having excellent moldability while maintaining conductivity, the present invention provides a production method for composite resin particles containing a fluororesin and a carbon nanomaterial, comprising: a step of separating the fluororesin in the presence of a dispersion medium; a step of obtaining a dispersion containing the fluororesin, the carbon nanomaterial, and the dispersion medium by dispersing the fluororesin and the carbon nanomaterial in the dispersion medium; and a step of removing the dispersion medium by storing the dispersion in a drying container having a bottom surface, and drying the dispersion under conditions in which a dry area calculated by the following equation (1) is in a range of 20˜100 [cm2/g], Dry area=(S/W1) . . . (1), wherein S is an area [cm2] of the bottom surface of the drying container, and W1 is a mass [g] of the composite resin particles in the dispersion.

    PRODUCTION METHOD FOR POWDER, PRODUCTION METHOD FOR MELT-MOLDED ARTICLE, POWDER, COMPRESSION-MOLDED ARTICLE, AND MELT-MOLDED ARTICLE

    公开(公告)号:US20210309812A1

    公开(公告)日:2021-10-07

    申请号:US17264434

    申请日:2019-07-26

    Abstract: One object of the present invention is to provide a production method for powder that can produce powder which can suppress foaming of a melt and can produce a molded-article with good conductivity and appearance by melt-molding, the present invention provides a production method for powder containing a composite resin (2, 21, 22, 23) containing a thermomeltable resin (2a) and a conductive filler (2b), wherein the production method comprises: a dispersion preparing step in which a raw material powder containing the thermomeltable resin (2a), the conductive filler (2b), a dispersion medium in which the raw material powder and the conductive filler (2b) are dispersed, and a dispersant (3) for dispersing the conductive filler (2b) in the dispersion medium are mixed to prepare the dispersion: an intermediate powder recovering step in which the dispersion medium is removed from the dispersion and recovering an intermediate powder containing the composite resin (2, 21, 22, 23) and the dispersant (3); and a dispersant removing step in which the dispersant (3) is removed from the intermediate powder.

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