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    Preparation of isocyanatosilanes
    172.
    发明授权
    Preparation of isocyanatosilanes 有权

    公开(公告)号：US11655263B2

    公开(公告)日：2023-05-23

    申请号：US17259268

    申请日：2019-07-02

    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

    Inventor： Venkata Sunil Jagani ,  Srinivas Komati ,  Vivek Khare

    IPC: C07F7/18 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32

    CPC classification number: C07F7/1892 ,  B01D3/009 ,  B01D3/143 ,  B01D3/32

    Abstract: There is provided herein a method and an apparatus for producing an isocyanatoorganosilane which method includes feeding a carbamatoorganosilane to a cracking device where it is thermally dissociated into a reaction product mixture comprising isocyanatoorganosilane, alcohol, and heavies, followed by separating the mixture in a distillation column of two parts and collecting the isocyanatoorganosilane from the distillation column via a side stream having a predetermined location between the top and bottom parts of the column; and wherein the distillation column is configured to have a ratio of the length of the bottom part of the distillation column to the length of the top part of the distillation column which is effective to provide a side stream having a high purity and high weight percent of isocyanatoorganosilane.

    CERAMIC COMPOSITE HEATERS COMPRISING BORON NITRIDE AND TITANIUM DIBORIDE
    179.
    发明申请
    CERAMIC COMPOSITE HEATERS COMPRISING BORON NITRIDE AND TITANIUM DIBORIDE 有权

    公开(公告)号：US20220098116A1

    公开(公告)日：2022-03-31

    申请号：US17417876

    申请日：2019-12-18

    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

    Inventor： Sudarshan NATARAJAN ,  Wei FAN ,  Xiang LIU ,  Gregory SHAFFER

    IPC: C04B35/583 ,  C04B35/58 ,  H05B3/14

    Abstract: Provided is a ceramic composite including boron nitride (BN) and titanium diboride (TiB2) for use in 2-D and 3-D heating element applications. The ceramic composite can be used in heater applications without a protective coating. The ceramic composite may be corrosion resistant against oxygen and moisture up to, for example, a temperature of 900° C., and may offer increased corrosion resistance against molten or vapor metal, including aluminum. The ceramic composite may be sufficiently rigid and may not require additional dielectric structural support. The ceramic composite may be sufficiently fracture resistant to enable machining of intricate and complex patterns and designs with a high aspect ratio of the coil length to width or thickness. The ceramic composite may be used with any heater shape, orientation, and size.

    Polymer network forming silane compositions
    180.
    发明授权
    Polymer network forming silane compositions 有权

    公开(公告)号：US11267955B2

    公开(公告)日：2022-03-08

    申请号：US16674713

    申请日：2019-11-05

    Applicant: Momentive Performance Materials Inc.

    Inventor： William Michael York ,  Adeyemi Adedayo Adepetun ,  Lesley Hwang ,  Eric Pohl

    IPC: C08L7/00 ,  B60C1/00 ,  B60C11/00 ,  C07F7/18 ,  C08J3/20 ,  C09C1/30

    Abstract: A silane based additive, rubber formulations including the additive and tires having tread portions made with the additive, together with methods of forming those products, are provided. Uncured rubber formulations in accordance with preferred embodiments of the invention comprise (1) a rubbery primary polymer or polymer blend, such as natural rubber and/or synthetic rubber; (2) reinforcing silica filler; (3) a network forming monomer or polymer, especially a thermosetting network forming moiety, for forming a secondary polymeric network; and (4) a silane containing one or more moieties of the aforementioned network forming polymer. In particular networks which can be generated in-situ are preferred. The cured rubber formulation should comprise the silica, having the secondary polymer network coupled thereto, within the rubber matrix, and not directly to the rubber chains via sulfidic linkages.

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