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    Thermoplastic Vulcanizate Compositions
    2.
    发明申请
    Thermoplastic Vulcanizate Compositions 有权

    公开(公告)号：US20220177685A1

    公开(公告)日：2022-06-09

    申请号：US17601616

    申请日：2020-06-19

    申请人： Celanese International Corporation

    发明人： Krishnan Anantha Narayana Iyer ,  Antonios K. Doufas ,  Michael J. Goncy ,  Eric P. Jourdain

    IPC分类号： C08L23/16

    摘要： In another embodiment, a TPV composition includes an ethylene based copolymer, a thermoplastic polyolefin, and one or more of an oil or a plasticizer. The ethylene based copolymer has an Mw of from 400,000 g/mol to 3,000,000 g/mol, a Mw/Mn of 10 or less, and a g′vis of 0.7 or more. An amount of the one or more of an oil or a plasticizer in the TPV composition is from 10 parts by weight to 200 parts by weight per 100 parts by weight of the ethylene based copolymer, and the TPV composition has an extrusion surface roughness that is from 50 μin to 120 μin. In another embodiment is provided a method of forming a TPV composition. In another embodiment is provided a method of forming an article that includes a TPV composition. In another embodiment is provided an article that includes a TPV composition.

    Pipe Including a Polymethylpentene Thermoplastic Polymer
    4.
    发明公开
    Pipe Including a Polymethylpentene Thermoplastic Polymer 审中-公开

    公开(公告)号：US20230193010A1

    公开(公告)日：2023-06-22

    申请号：US17923433

    申请日：2021-04-26

    申请人： Celanese International Corporation

    发明人： Krishnan Anantha Narayana Iyer ,  Dinara Sunagatullina

    IPC分类号： C08L23/22 ,  C08L23/12 ,  C08L23/16

    CPC分类号： C08L23/22 ,  C08L23/12 ,  C08L23/16 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2203/18

    摘要： In an embodiment is provided a thermoplastic vulcanizate (TPV) composition that includes a rubber and a thermoplastic polyolefin, the thermoplastic polyolefin comprising a polymethylpentene. In another embodiment is provided a pipe, wherein the pipe includes a TPV composition. In another embodiment is provided an insulated high-temperature transport conduit that includes a TPV composition. In another embodiment is provided a pipe that includes a thermal insulation layer comprising a TPV composition. In another embodiment is provided a process for preparing a TPV composition, the process includes melt processing under shear conditions at least one thermoplastic polyolefin, at least one rubber, and at least one curing agent, the at least one thermoplastic polyolefin comprising polymethylpentene; and forming a TPV composition.

    Thermoplastic Vulcanizate Compositions and Processes for the Production Thereof
    10.
    发明申请
    Thermoplastic Vulcanizate Compositions and Processes for the Production Thereof 有权

    公开(公告)号：US20220306849A1

    公开(公告)日：2022-09-29

    申请号：US17771135

    申请日：2020-10-13

    申请人： Celanese International Corporation

    发明人： Antonios K. Doufas ,  Krishnan Anantha Narayana Iyer ,  Zerong Lin ,  Ranadip Ganguly

    IPC分类号： C08L23/12 ,  C08F210/18 ,  C08K3/22 ,  C08K5/098

    摘要： The present disclosure relates to a thermoplastic vulcanizate including a polypropylene and a copolymer. The copolymer may have an ethylene content, a propylene content, and an a, α,ω-diene content. The thermoplastic vulcanizate has a shore hardness of about 20 Shore A or greater. Alternatively, a thermoplastic vulcanizate may include a polypropylene and an elastomeric polymer and have a shore hardness of about 50 MPa or greater, a tensile strength at yield of about 18 MPa or greater, and an oil swell of about 15% weight gain or less. Additionally, the present disclosure relates to processes for producing thermoplastic vulcanizates. A process may include introducing a catalyst and propylene to a first reactor to form a first polymer, and introducing the first polymer, ethylene, at least one α,ω-diene, and optionally additional propylene to a second reactor to form an impact copolymer. The process may further include crosslinking the impact copolymer.