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    POLYPHENYLENE ETHER COMPOSITION
    102.
    发明公开
    POLYPHENYLENE ETHER COMPOSITION 审中-公开

    公开(公告)号：EP4039728A1

    公开(公告)日：2022-08-10

    申请号：EP20871584.7

    申请日：2020-08-28

    申请人： Asahi Kasei Kabushiki Kaisha

    发明人： KIM, JAEHOON ,  FUKUEN, Shinichi ,  FUKUOKA, Hiroshi ,  OTANI, Shoji ,  FUKUOKA, Ryoko ,  HONDA, Noko

    IPC分类号： C08G65/44 ,  C08G65/48 ,  C08L71/12

    摘要： The present disclosure provides a polyphenylene ether composition having a high glass transition temperature and a long-term solubility in a solvent, and exhibiting a low viscosity when being dissolved in a solvent. The polyphenylene ether composition of the present disclosure contains 60 mol% or more of a polyphenylene ether having the structure of Formula (1), wherein the ratio of the integrated value of the peak appearing at 7.6 to 8.3 ppm to the integrated value of the peak derived from the structure of the following Formula (2) in a 1 H-NMR measurement result is 1 or less, and the number average molecular weight in terms of polystyrene is 500 to 15,000 g/mol.

    POLY(ARYLENE ETHER) COPOLYMER
    105.
    发明公开
    POLY(ARYLENE ETHER) COPOLYMER 审中-公开

    公开(公告)号：EP3636692A1

    公开(公告)日：2020-04-15

    申请号：EP18199174.6

    申请日：2018-10-08

    申请人： SABIC Global Technologies B.V.

    发明人： TAS, HUSEYIN ,  TARKIN-TAS, EYLEM ,  CARRILLO, ALVARO

    IPC分类号： C08G65/44 ,  C08L71/12

    摘要： A poly(arylene ether) copolymer is the product of oxidative copolymerization of monomers including a monohydric phenol and a dihydric phenol of the formula

    wherein R 3 , R 4 , R 5 , and R 6 are as defined herein. The poly(arylene ether) copolymer includes less than 0.1 weight percent of incorporated amine groups. A method of the manufacture of a poly(arylene ether) copolymer is also disclosed. A curable composition including the poly(arylene ether) copolymer and cured products derived therefrom are also described.

    METHOD FOR POLY(PHENYLENE ETHER) MANUFACTURE AND ASSOCIATED POLY(PHENYLENE ETHER)
    109.
    发明公开
    METHOD FOR POLY(PHENYLENE ETHER) MANUFACTURE AND ASSOCIATED POLY(PHENYLENE ETHER) 审中-公开
    聚（苯醚）制造方法及相关聚（苯醚）

    公开(公告)号：EP3307806A1

    公开(公告)日：2018-04-18

    申请号：EP16731436.8

    申请日：2016-06-07

    申请人： SABIC Global Technologies B.V.

    发明人： GHANTA, Madhav

    IPC分类号： C08G65/44

    摘要： A method of making a poly(phenylene ether) comprises: in an exotherm period, continuous addition of oxygen and a monohydric phenol to a non-polar solvent and a polymerization catalyst comprising a metal salt, an amine, and a quaternary ammonium salt in a vessel, to form a polymerization mixture, wherein the oxygen and monohydric phenol are added in a mole ratio of 0.5:1 to 1.2:1; and cessation of the continuous addition of the monohydric phenol; and in a build period, continuation of oxygen addition until there is no further increase in viscosity of the polymerization mixture. A poly(phenylene ether) having an intrinsic viscosity of 0.5 to 2.0 deciliters per gram, measured in chloroform using an Ubbelohde capillary glass viscometer at 25° C., a polydispersity of 1 to 10, and a unimodal molecular weight distribution, is made by the method.