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819 条记录 (耗时 0.034 秒)

    Polyacrylonitrile (PAN) and preparation method and use thereof
    3.
    发明授权
    Polyacrylonitrile (PAN) and preparation method and use thereof 有权

    公开(公告)号：US11897979B2

    公开(公告)日：2024-02-13

    申请号：US17811301

    申请日：2022-07-07

    申请人： Changchun University of Technology

    发明人： Zhongyu Fu ,  Huijie Yan ,  Huixuan Zhang

    IPC分类号： C08F20/44 ,  C08F220/44 ,  C08F2/38 ,  C08F2/44

    CPC分类号： C08F20/44 ,  C08F2/44

    摘要： Some embodiments of the disclosure provides polyacrylonitrile (PAN) and a preparation method and use thereof. The method includes the following steps. Mixing raw materials for polymerization to obtain a suspension comprising the PAN. The raw materials include an acrylonitrile monomer, a first auxiliary monomer, a second auxiliary monomer, a polymerization medium, an initiator, a chain transfer agent, and a settling agent. Removing unreacted monomers and unreacted polymerization medium in the suspension to obtain the PAN. After subsequent removal of monomers, removal of a polymerization medium, washing, and drying, a PAN powder is obtained. In some embodiments, the preparation method of the PAN has a wide adjustable range of a PAN copolymerization composition, a low viscosity of a polymerization system, a high concentration of a polymerized monomer, and a strong anti-scaling ability.

    THERMOPLASTIC COMPOSITION AND MOLDED ARTICLE THEREOF
    5.
    发明申请
    THERMOPLASTIC COMPOSITION AND MOLDED ARTICLE THEREOF 有权

    公开(公告)号：US20230087173A1

    公开(公告)日：2023-03-23

    申请号：US17957459

    申请日：2022-09-30

    申请人： TECHNO-UMG CO., LTD.

    发明人： Shinji FUJII ,  Naruki TANAKA

    IPC分类号： C08L55/02 ,  C08F255/04 ,  C08F212/08 ,  C08F220/44 ,  C08G64/04 ,  C08F236/06 ,  C08L53/00 ,  C08F236/08 ,  C08F8/04 ,  C08J5/18

    摘要： A thermoplastic resin composition includes a resin component (A) in an amount of 97 to 80 parts by mass; and a hitting sound reducing material (B) in an amount of 3 to 20 parts by mass. The hitting sound reducing material (B) is a hydrogenated copolymer derived from hydrogenation of a copolymer formed of a block portion (I) primarily including structural units derived from an aromatic vinyl-based compound, and a random portion (II) primarily including structural units derived from an aromatic vinyl-based compound and derived from butadiene. The structural units derived from an aromatic vinyl-based compound in the block portion (I) and derived from an aromatic vinyl-based compound in the random portion (II) are present in a total content of 55 to 80 mass % relative to a 100 total mass % of the copolymer, and the hydrogenated copolymer has a primary dispersion peak of tan δ at 0° C. or greater.

    METHOD AND SYSTEM FOR PRODUCING A POLYMER
    7.
    发明申请
    METHOD AND SYSTEM FOR PRODUCING A POLYMER 有权

    公开(公告)号：US20230064044A1

    公开(公告)日：2023-03-02

    申请号：US17982698

    申请日：2022-11-08

    申请人： INEOS SYTROLUTION GROUP GMBH

    发明人： Wolfgang FISCHER ,  Peter ITTEMANN ,  Florian PATCAS ,  Michael RUF

    IPC分类号： C08F2/01 ,  C08F2/06 ,  C08F2/34 ,  C08F212/10 ,  C08F220/14 ,  C08F220/44

    摘要： A method for producing a polymer from a first component and a second component using a reactor (50) offers technical advantages, wherein reaction heat produced in the reactor (50) is discharged via a boiling cooler (40) by supplying gaseous vapors produced in the reactor (50) to the boiling cooler (40). A product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via a separation vessel (60), and an aqueous phase is separated from the product flow in the separation vessel (60). A system is provided for producing a polymer from a first component and a second component, comprising a reactor (50) and a boiling cooler (40) for discharging reaction heat produced in the reactor (50). A separation vessel (60) is arranged between the boiling cooler (40) and the reactor (50) such that a product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via the separation vessel (60).

    THERMOPLASTIC RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE MANUFACTURED USING THE SAME
    10.
    发明申请
    THERMOPLASTIC RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE MANUFACTURED USING THE SAME 有权

    公开(公告)号：US20220348760A1

    公开(公告)日：2022-11-03

    申请号：US17774231

    申请日：2021-07-19

    申请人： LG CHEM, LTD.

    发明人： Suk Jo CHOI ,  Hyun Jun RYU ,  Tae Hoon KIM

    IPC分类号： C08L51/00 ,  C08F120/14 ,  C08F212/08 ,  C08F220/14 ,  C08F220/44

    摘要： Disclosed are a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. The thermoplastic resin composition includes 3 to 22% by weight of a graft copolymer (A-1) including an acrylate-based rubber having an average particle diameter of 200 to 400 nm, an aromatic vinyl compound, and a vinyl cyanide compound; 17 to 40% by weight of a graft copolymer (A-2) including an acrylate-based rubber having an average particle diameter of 50 to 199 nm, an aromatic vinyl compound, and a vinyl cyanide compound; 30 to 57% by weight of a copolymer (B) including a (meth)acrylic acid alkyl ester compound, an α-methyl styrene-based compound, and a vinyl cyanide compound; and 6 to 30% by weight of a polymethacrylate resin (C) (except for α-methyl styrene), wherein an average multi-axial impact strength is 22 J/mm or more.