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    IRRADIATED FLUOROPOLYMER ARTICLES HAVING LOW LEACHABLE FLUORIDE IONS
    1.
    发明申请
    IRRADIATED FLUOROPOLYMER ARTICLES HAVING LOW LEACHABLE FLUORIDE IONS 审中-公开
    具有低可浸出氟离子的红外线氟化物文章

    公开(公告)号：US20150329697A1

    公开(公告)日：2015-11-19

    申请号：US14808220

    申请日：2015-07-24

    申请人： Arkema Inc.

    发明人： Saeid Zerafati

    IPC分类号： C08K3/22

    CPC分类号： C08K3/22 ,  A61L2/0035 ,  A61L2/0041 ,  A61L2/007 ,  A61L2/081 ,  A61L2/082 ,  A61L2/087 ,  C08J7/123 ,  C08J2300/102 ,  C08J2327/16 ,  C08K5/0058 ,  C08K2003/2296 ,  C08L27/16

    摘要： The invention relates to fluoropolymer articles that have been irradiated with at least 5 Kilo Gray of radiation, where the resulting articles have low levels of leachable or extractable fluoride ion. The low fluoride ion migration from the irradiated article is due to the presence of low levels of metallic salts or oxides in the fluoropolymer composition. The invention is especially useful for fluoropolymer articles in which the fluoropolymer layer contacts a biological or pharmaceutical fluid, and that are subjected to sterilization by irradiation.

    摘要翻译： 本发明涉及已经用至少5千克雷的辐射照射的氟聚合物制品，其中所得制品具有低水平的可浸出或可萃取的氟离子。 来自照射制品的低氟离子迁移是由于氟聚合物组合物中存在低水平的金属盐或氧化物。 本发明特别适用于其中含氟聚合物层接触生物或药物流体并且通过照射进行灭菌的含氟聚合物制品。

    Fluoropolymer blend
    2.
    发明授权
    Fluoropolymer blend 有权

    公开(公告)号：US11530322B2

    公开(公告)日：2022-12-20

    申请号：US14914364

    申请日：2014-08-28

    申请人： Arkema Inc.

    发明人： Ramin Amin-Sanayei ,  Gregory S. O'Brien ,  Saeid Zerafati

    IPC分类号： C08L27/16 ,  C08J5/18 ,  B29C48/04 ,  B29K27/12 ,  B29L31/00 ,  B29K27/00 ,  B29K427/12 ,  B29K105/00 ,  C08L27/12

    摘要： 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.

    Low density fluoropolymer foam
    8.
    发明授权
    Low density fluoropolymer foam 有权

    公开(公告)号：US11643520B2

    公开(公告)日：2023-05-09

    申请号：US16645131

    申请日：2018-09-05

    申请人： Arkema Inc.

    发明人： Saeid Zerafati ,  Ronald H. Partridge

    IPC分类号： C08J9/32 ,  B29C48/40 ,  B29K105/16

    CPC分类号： C08J9/32 ,  B29C48/40 ,  B29K2105/165 ,  C08J2201/024 ,  C08J2201/03 ,  C08J2203/22 ,  C08J2207/06 ,  C08J2327/16 ,  C08J2433/08

    摘要： 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.

    High impact blends of vinylidene fluoride-containing polymers
    9.
    发明授权
    High impact blends of vinylidene fluoride-containing polymers 有权

    公开(公告)号：US10774208B2

    公开(公告)日：2020-09-15

    申请号：US15557147

    申请日：2016-03-10

    申请人： Arkema Inc.

    发明人： Saeid Zerafati ,  Ramin Amin-Sanayei ,  James J. Henry ,  Gregory S. O'Brien

    IPC分类号： C08L27/12 ,  C08L83/04 ,  C08L27/16 ,  C09D127/16 ,  C08F283/12 ,  C08L51/08

    摘要： 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.