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    MULTI-LAYER FLUOROPOLYMER FOAM STRUCTURE
    2.
    发明申请
    MULTI-LAYER FLUOROPOLYMER FOAM STRUCTURE 审中-公开

    公开(公告)号：US20200282689A1

    公开(公告)日：2020-09-10

    申请号：US16406061

    申请日：2019-05-08

    Applicant: ARKEMA INC.

    Inventor： Saeid ZERAFATI

    IPC: B32B1/08 ,  B29C44/06 ,  B32B27/06 ,  B32B27/32 ,  C08J9/06 ,  B29C44/50 ,  B29C48/21

    Abstract: The invention relates to multi-layer articles consisting of at least one layer of a foamed fluoropolymer. The article is formed by co-extrusion in which the foamed layer is coextruded as a foam, and not foamed in a secondary process. Preferably the fluoropolymer foam is a polyvinylidene fluoride (PVDF), such as KYNAR PVDF from Arkema Inc. The article could be sized into a specific shape during the manufacturing process. Useful multi-layer articles of the invention include pipe, tube, sheet, profile, film, jacketing or any other multilayer foam-core articles are especially useful.

    HIGH IMPACT BLENDS OF VINYLIDENE FLUORIDE-CONTAINING POLYMERS
    3.
    发明申请
    HIGH IMPACT BLENDS OF VINYLIDENE FLUORIDE-CONTAINING POLYMERS 审中-公开

    公开(公告)号：US20180044515A1

    公开(公告)日：2018-02-15

    申请号：US15557147

    申请日：2016-03-10

    Applicant: Arkema Inc.

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

    IPC: C08L27/16

    Abstract: The invention relates to blends containing polymers of vinylidene fluoride, having low ductile-brittle transition temperatures and having excellent low temperature impact properties while maintaining the positive aspects of unmodified vinylidene fluoride-containing polymers. The blends of this invention are produced by adding a core-shell impact modifier (CSIM) comprised of a polysiloxane core and a shell compatible with vinylidene fluoride-containing polymer. The blends are further characterized by the presence of a heterogeneous copolymer composition comprised of two or more distinct phases and/or at least one flame and smoke suppressant. The preparation of these new blends can be done by conventional thermoplastic compounding techniques such as twin screw compounding; alternatively, the CSIM can be introduced earlier, such as in the latex. The unique properties of the new blends make them useful in end-use applications where those properties provide performance advantages, such as in wires & cables and in oil and gas applications.

    HIGH STRENGTH POLYVINYLIDENE FLUORIDE BASED REINFORCED COMPOUNDS
    4.
    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.

    LOW DENSITY FLUOROPOLYMER FOAM
    7.
    发明申请
    LOW DENSITY FLUOROPOLYMER FOAM 有权

    公开(公告)号：US20210163704A1

    公开(公告)日：2021-06-03

    申请号：US16645131

    申请日：2018-09-05

    Applicant: Arkema Inc.

    Inventor： Saeid ZERAFATI ,  Ronald H. PARTRIDGE

    IPC: C08J9/32 ,  B29C48/40

    Abstract: The invention relates to low density fluoropolymer foam, and preferably polyvinylidene fluoride (PVDF) foam, such as that made with KYNAR PVDF resins, and articles made of the foam. The foam is produced by adding microspheres containing blowing agents to the polymer and processing it through an extruder. The microspheres consist of a hard shell containing a physical blowing agent. The shell softens at elevated temperatures and allows the expansion of the blowing agent, and microsphere to create larger voids within the polymer matrix. By proper control of the polymer composition, viscosity, processing temperature, blowing agent selection, loading ratio, and finishing conditions, useful articles such as foamed PVDF pipe, tube, profiles, film, wire jacketing and other articles can be produced. The microspheres may be added to the fluoropolymer matrix by several means, including as part of a masterbatch with a compatible polymer carrier.

    FLUOROPOLYMER BLEND
    8.
    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。

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