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    FLUORINE-CONTAINING POLYETHER COMPOUND
    1.
    发明公开
    FLUORINE-CONTAINING POLYETHER COMPOUND 审中-公开

    公开(公告)号：US20240092971A1

    公开(公告)日：2024-03-21

    申请号：US18505260

    申请日：2023-11-09

    Applicant: DAIKIN INDUSTRIES, LTD. ,  NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY

    Inventor： Yoshiyuki OISHI ,  Tsuyoshi Noguchi

    IPC: C08G65/38

    CPC classification number: C08G65/38

    Abstract: The present disclosure provides a fluorine-containing polyether compound having a repeating unit represented by formula (1).




    In formula (1), n represents an integer of 1 to 8, Ph represents a phenylene group, X1 represents a heterocyclic ring or a hydrocarbon ring, one or both of two phenylene groups represented by Ph, and the heterocyclic ring or hydrocarbon ring represented by X1 are optionally condensed with each other, and the phenylene group, the heterocyclic ring, and the hydrocarbon ring optionally have a substituent.

    Purified polymer and methods for making
    2.
    发明授权
    Purified polymer and methods for making 有权

    公开(公告)号：US11866541B2

    公开(公告)日：2024-01-09

    申请号：US17249274

    申请日：2021-02-25

    Applicant: Kraton Polymers LLC

    Inventor： Kathryn Wright ,  Vijay Mhetar ,  Bert Krutzer

    IPC: C08F6/28 ,  C08F293/00 ,  C08F118/08 ,  C08G65/38

    CPC classification number: C08F6/28 ,  C08F118/08 ,  C08F293/00 ,  C08G65/38

    Abstract: A method to purify a polymer is disclosed. The method is part of a manufacturing process wherein a virgin polymer is produced from a polymerization process employing at least a monomer or a comonomer as a feedstock. The monomer or the comonomer is selected from the group consisting of organic polar monomers, inorganic monomers, vinyl aromatic monomers, conjugated dienes, and mixtures thereof. In the method, the polymer in solid, liquid or molten state is brought into contact with a fluid solvent or an extraction fluid in a supercritical state or near supercritical state. The contact is at controlled temperature and pressure, allowing the fluid solvent to diffuse into the polymer and extract the impurities intended to remove. The method can be used to remove at least 10%, or at least 20%, or at least 50% of the target impurity from the polymer.

    PROCESS FOR PREPARING BRANCHED PHENOLIC NOVOLAK
    3.
    发明公开
    PROCESS FOR PREPARING BRANCHED PHENOLIC NOVOLAK 审中-公开

    公开(公告)号：US20230374213A1

    公开(公告)日：2023-11-23

    申请号：US18030301

    申请日：2021-10-05

    Applicant: Advanced Polymer Coatings, Inc.

    Inventor： Jeremy Pasatta

    IPC: C08G65/38 ,  C08L71/12

    CPC classification number: C08G65/38 ,  C08L71/126

    Abstract: A process for synthesizing a branched phenolic novolak using commercially available raw materials, amenable to large scale manufacturing, and giving good chemical resistance when used in epoxy formulations is described. When combined with resorcinol during the epoxy synthesis, the branched phenolic novolak gives superior chemical resistance in a two-component heat cured epoxy.

    POLYFUNCTIONAL POLY(ARYLENE ETHER) RESIN AND PREPARATION METHOD THEREOF
    5.
    发明申请
    POLYFUNCTIONAL POLY(ARYLENE ETHER) RESIN AND PREPARATION METHOD THEREOF 有权

    公开(公告)号：US20230019298A1

    公开(公告)日：2023-01-19

    申请号：US17843269

    申请日：2022-06-17

    Applicant: JINAN SHENGQUAN GROUP SHARE HOLDING CO,.LTD.

    Inventor： LEI TANG ,  ZHAOYIN DIAO ,  ZHIFANG LI ,  XIUCHENG LI ,  YANG LI

    IPC: C08G65/38

    Abstract: The present application discloses a polyfunctional poly(arylene ether) resin, having a number average molecular weight of 1000-6000, preferably a number average molecular weight of 1500-3000, and a structural formula shown in Formula (1) below. The present application further discloses a preparation method of the polyfunctional poly(arylene ether) resin, including the following steps: adding a monophenol compound and a polyphenol compound to a good solvent of poly(arylene ether) to obtain a monomer solution, mixing the monomer solution with a catalyst while introducing oxygen to carry out polymerization, and after the polymerization is finished, adding a terminator to obtain a reaction liquid I; and carrying out liquid-liquid separation on the reaction liquid I, taking an upper organic phase as a reaction liquid II, and pouring the reaction liquid II into a poor solvent to precipitate the polyfunctional poly(arylene ether) resin as shown in Formula (1).

    Cross-Linking Compositions for Forming Cross-Linked Organic Polymers, Organic Polymer Compositions, Methods of Forming the Same, and Molded Articles Produced Therefrom
    8.
    发明申请
    Cross-Linking Compositions for Forming Cross-Linked Organic Polymers, Organic Polymer Compositions, Methods of Forming the Same, and Molded Articles Produced Therefrom 审中-公开

    公开(公告)号：US20200172667A1

    公开(公告)日：2020-06-04

    申请号：US16568151

    申请日：2019-09-11

    Applicant: Greene, Tweed Technologies, Inc.

    Inventor： Sudipto Das ,  Le Song ,  Thomas Reger

    IPC: C08G65/38 ,  C08K5/09

    Abstract: The present invention provides cross-linking compounds having structures as set forth herein for cross-linking organic polymers. Further, polymer compositions include a cross-linking compound and an organic polymer, and in some embodiments the composition further includes a cross-linking reaction additive for controlling the cross-linking reaction rate. In alternate embodiments, the present invention provides cross-linking compositions including a cross-linking compound and a cross-linking reaction additive capable of forming a reactive intermediate oligomer for cross-linking an organic polymer. Further provided are methods of cross-linking organic polymers, organic polymers formed thereby, and molded articles formed from the cross-linked organic polymers. Additionally, methods for forming high glass transition temperature elastomeric materials and methods for forming extrusion-resistant and creep-resistant materials are provided.

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