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    Method for poly(phenylene ether) manufacture and associated poly(phenylene ether)
    1.
    发明授权
    Method for poly(phenylene ether) manufacture and associated poly(phenylene ether) 有权

    公开(公告)号：US11041046B2

    公开(公告)日：2021-06-22

    申请号：US15578116

    申请日：2016-06-07

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Madhav Ghanta

    IPC: C08G65/44

    Abstract: 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.

    PHENYLENE ETHER OLIGOMER COMPOSITION
    4.
    发明申请
    PHENYLENE ETHER OLIGOMER COMPOSITION 审中-公开

    公开(公告)号：US20200308346A1

    公开(公告)日：2020-10-01

    申请号：US16902831

    申请日：2020-06-16

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Douglas Henry Lenz ,  Madhav Ghanta ,  Matias Bikel

    IPC: C08G65/46 ,  B01D1/22 ,  C08G65/48 ,  B01J10/02

    Abstract: A phenylene ether oligomer composition is disclosed comprising, a phenylene ether oligomer having an external amine content of less than or equal to 1.5 weight percent; and a residual solvent in an amount of 10 to 10000 parts per million by weight, based on the weight of the phenylene ether oligomer composition; wherein the phenylene ether oligomer composition has an intrinsic viscosity of 0.03 to 0.13 deciliter per gram; a glass transition temperature of 135 to 175° C., or a combination thereof

    2-(2,3-epdxypropyl)phenol composition and method of making
    5.
    发明授权
    2-(2,3-epdxypropyl)phenol composition and method of making 有权

    公开(公告)号：US10214503B2

    公开(公告)日：2019-02-26

    申请号：US15329279

    申请日：2015-08-25

    Applicant: SABIC Global Technologies, B.V.

    Inventor： Scott Michael Fisher ,  Madhav Ghanta ,  Mark R. Denniston

    IPC: C07D301/12 ,  C08G59/02 ,  C07D311/20 ,  C07C33/20 ,  C07C33/03 ,  C07C33/30

    Abstract: Disclosed herein is a method of making a 2-(2,3-epoxypropyl)phenol by reacting a 2-allylphenol with an oxidant in the presence of a catalyst. A 3-chromanol can be formed as a by-product. The method can be used to make 2-(2,3-epoxypropyl)-6-methylphenol. Transition metal catalysts and peroxide oxidants can be used. Also disclosed is a composition comprising 1 to 90 weight percent of a 2-(2,3-epoxypropylphenol, 5 to 90 weight percent of a 2-allylphenol, and 0 to 40 weight percent of a 3-chromanol, and in particular, a composition comprising 1 to 90 weight percent 2-(2,3-epoxypropyl)-6-methylphenol, 5 to 90 weight percent 2-allyl-6-methylphenol, and 0 to 40 weight percent 8-methyl-3-chromanol.

    2-(2,3-EPOXYPROPYL)PHENOL COMPOSITION AND METHOD OF MAKING
    7.
    发明申请
    2-(2,3-EPOXYPROPYL)PHENOL COMPOSITION AND METHOD OF MAKING 审中-公开

    公开(公告)号：US20190100502A1

    公开(公告)日：2019-04-04

    申请号：US16151712

    申请日：2018-10-04

    Applicant: SABIC Global Technologies, B.V.

    Inventor： Scott Michael Fisher ,  Madhav Ghanta ,  Mark R. Denniston

    IPC: C07D301/12 ,  C08G59/02

    Abstract: Disclosed herein is a method of making a 2-(2,3-epoxypropyl)phenol by reacting a 2-allylphenol with an oxidant in the presence of a catalyst. A 3-chromanol can be formed as a by-product. The method can be used to make 2-(2,3-epoxypropyl)-6-methylphenol. Transition metal catalysts and peroxide oxidants can be used. Also disclosed is a composition comprising 1 to 90 weight percent of a 2-(2,3-epoxypropylphenol, 5 to 90 weight percent of a 2-allylphenol, and 0 to 40 weight percent of a 3-chroman-ol, and in particular, a composition comprising 1 to 90 weight percent 2-(2,3-epoxypropyl)-6-methylphenol, 5 to 90 weight percent 2-allyl-6-methylphenol, and 0 to 40 weight percent 8-methyl-3-chromanol.

    METHOD FOR POLY(PHENYLENE ETHER) MANUFACTURE AND ASSOCIATED POLY(PHENYLENE ETHER)
    9.
    发明申请
    METHOD FOR POLY(PHENYLENE ETHER) MANUFACTURE AND ASSOCIATED POLY(PHENYLENE ETHER) 审中-公开

    公开(公告)号：US20180079863A1

    公开(公告)日：2018-03-22

    申请号：US15578116

    申请日：2016-06-07

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Madhav Ghanta

    IPC: C08G65/44

    CPC classification number: C08G65/44 ,  C08G2650/50 ,  C08G2650/64

    Abstract: 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.

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