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    RETICULATED CARBON COMPOSITES
    1.
    发明申请
    RETICULATED CARBON COMPOSITES 有权

    公开(公告)号：US20220372308A1

    公开(公告)日：2022-11-24

    申请号：US17616802

    申请日：2020-06-18

    Applicant: Arkema Inc.

    Inventor： Ramin AMIN-SANAYEI ,  Jeremie BREZUN ,  Mark AUBART

    IPC: C09D7/61 ,  C09D7/40 ,  C09D133/12 ,  C09D127/16 ,  C08J5/18 ,  C08J9/00 ,  C08J9/28

    Abstract: This invention discloses a reticulated film composite and a method of fabricating a reticulated film composite suitable as a 3 dimensional porous and conductive matrix which contains up to 80% porosity and exhibits high recovery after compression. The reticulated film composite is produced by casting and drying of a slurry which exhibits a high yield stress (i.e. greater than 50 dyne/cm2) and comprised of a high MW resin dissolved in a solvent (i.e. having solution viscosity of higher than 100 cp at 5% in NMP at room temperature) and dispersed nanoparticles of carbon of high specific surface areas (i.e. greater than 1 m2/g preferably greater than 10 m2/g), examples include but not limited to conductive carbon, carbon nanotubes, graphene, activated carbon or mixture thereof. This reticulated film composite exhibits high electrical conductivity (i.e. volume resistivity of less than 10,000 Ω·cm) and superior dimensional stability even at elevated temperatures (i.e. at 140° C.). It will exhibit a recovery of height or porosity after being compressed to over 50% of its height. The composite of this invention is suitable as an electrically conductive composite, as a gas diffusion layer in a fuel cell, or as a high efficiency electrode in super capacitors

    RETICULATED COMPOSITE MATERIAL
    3.
    发明申请
    RETICULATED COMPOSITE MATERIAL 有权

    公开(公告)号：US20220298313A1

    公开(公告)日：2022-09-22

    申请号：US17617068

    申请日：2020-06-18

    Applicant: Arkema Inc.

    Inventor： Ramin AMIN-SANAYEI ,  Jeremie BREZUN ,  Mark AUBART ,  Christian COLLETTE

    IPC: C08J5/18 ,  C08J9/28 ,  C08K3/22 ,  C08K3/04 ,  C08K3/36 ,  H01M50/446 ,  H01M50/403 ,  H01M50/491

    Abstract: This invention discloses a reticulated film composite and a method of fabricating the reticulated film composite suitable as a separator in electrochemical cells as sound absorbing films, or as high efficiency filtering media. The reticulated film composite is produced by casting and drying of a slurry which exhibits a high yield stress (i.e. greater than 50 dyne/cm2) and comprised of a high MW resin dissolved in a solvent (i.e. having solution viscosity of higher than 100 cp at 5% in NMP or in water at room temperature) and dispersed nanoparticles with high specific surface areas (i.e. greater than 10 m2/g) such as fumed alumina, or fumed silica, or fumed zirconia or mixture thereof. This reticulated film composite exhibits superior cycling properties and high ionic conductivity with a porosity up to 80% while maintains a high dimensional stability (i.e. less than 10% shrinking) at elevated temperatures (up to 140° C.). The reticulated composite separator coating can be used in combination with an electrode coating either in two separate process steps, or in a one-step process by having a simulations multi-layer casting of electrode and separator to manufacture a lithium ion battery.

    STABLE AQUEOUS FLUOROPOLYMER COATING COMPOSITION
    5.
    发明申请
    STABLE AQUEOUS FLUOROPOLYMER COATING COMPOSITION 审中-公开

    公开(公告)号：US20170253760A1

    公开(公告)日：2017-09-07

    申请号：US15500707

    申请日：2015-06-25

    Applicant: Arkema Inc.

    Inventor： Min ZHENG ,  Ramin AMIN-SANAYEI ,  Qing LI ,  An DU

    IPC: C09D127/16 ,  C09D7/12 ,  C09D5/00 ,  C09D7/00

    CPC classification number: C09D127/16 ,  C09D5/00 ,  C09D7/20 ,  C09D7/65 ,  C08L33/12 ,  C09D133/12 ,  C08L27/12

    Abstract: The invention relates to a high shear stable aqueous fluoropolymer coating composition, preferably using polyvinylidene fluoride (PVDF), such as KYNAR® PVDF, suitable for high performance coating applications. The composition is based on a high shear stable fluoropolymer emulsion having small particle size, blended with an acrylic polymer additive. The use of this composition allows high bake PVDF water-base coatings which can be applied on variety of substrates such as metal or ceramic surfaces, and in the impregnation of textiles, glass, carbon or aramid fibers, etc. The dry coating formed from the coating composition of the invention exhibits improved gloss, crack resistance, chemical resistance, hot dirt pick up resistance and other improved properties.

    FLUOROPOLYMER BLEND
    6.
    发明申请
    FLUOROPOLYMER BLEND 审中-公开
    荧光增白剂混合

    公开(公告)号：US20160200907A1

    公开(公告)日：2016-07-14

    申请号：US14914364

    申请日：2014-08-28

    Applicant: ARKEMA INC.

    Inventor： Ramin AMIN-SANAYEI ,  Gregory S. O'BRIEN ,  Saeid ZERAFATI

    IPC: C08L27/16 ,  B29C47/00 ,  C08J5/18

    CPC classification number: C08L27/16 ,  B29C48/04 ,  B29K2027/12 ,  B29L2031/00 ,  C08J5/18 ,  C08J2327/16 ,  C08L2203/12 ,  C08L2203/16 ,  C08L2203/18 ,  C08L2203/30 ,  C08L2205/02 ,  C08L2205/025

    Abstract: The present invention relates to the preparation of a thermoplastic fluoropolymer blend composition exhibiting improved mechanical properties upon fabrication. The fluoropolymer blend composite on is produced by blending an emulsion latex of fluoropolymer (A) with an emulsion latex of fluorinated copolymer (B). Copolymer (B) emulsion has a small particle size, super high MW, and a low degree of crystallinity. The blending of the latex emulsions results in a morphology with small particles of copolymer (B) uniformly distributed within a matrix of fluoropolymer (A) in a manner that could not be achieved by a mere melt blending of the tow components.

    Abstract translation: 本发明涉及在制造时显示改善的机械性能的热塑性含氟聚合物共混物组合物的制备。 通过将含氟聚合物（A）的乳液胶乳与含氟共聚物（B）的乳液胶乳混合，制备含氟聚合物共混物复合物。 共聚物（B）乳液具有小的粒度，超高的MW和低的结晶度。 乳胶乳液的混合导致形态，其中共聚物（B）的小颗粒均匀地分布在含氟聚合物（A）的基质内，其方式不能仅通过熔融共混丝束组分来实现。

    HIGH STRENGTH POLYVINYLIDENE FLUORIDE BASED REINFORCED COMPOUNDS
    10.
    发明申请
    HIGH STRENGTH POLYVINYLIDENE FLUORIDE BASED REINFORCED COMPOUNDS 有权

    公开(公告)号：US20210079206A1

    公开(公告)日：2021-03-18

    申请号：US16630621

    申请日：2018-06-20

    Applicant: Arkema Inc.

    Inventor： Gregory Scott O'BRIEN ,  Ramin AMIN-SANAYEI ,  Saeid ZERAFATI

    IPC: C08L27/16

    Abstract: The invention relates to the use of chopped fibers in thermoplastic composite compounds, and in particular to thermoplastic fluoropolymer compounds. The fluoropolymer matrix contains thermoplastic fluoropolymers that have been grafted with a carboxylic polar functionality, such as KYNAR ADX® polymer from Arkema. The chopped fiber—grafted fluoropolymer composite has increased tensile and flexural strength compared to fluoropolymer compounds that contain no grafted carboxylic grafted fluoropolymer.

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