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    SILICONE COMPOSITIONS
    553.
    发明申请
    SILICONE COMPOSITIONS 审中-公开

    公开(公告)号：US20190031932A1

    公开(公告)日：2019-01-31

    申请号：US16148766

    申请日：2018-10-01

    Applicant: Saint-Gobain Performance Plastics Corporation

    Inventor： Jianfeng Zhang ,  Michael J. Tzivanis ,  Xipeng Liu ,  Jian L. Ding

    IPC: C09J183/06

    Abstract: This disclosure relates to polymerizable silicone compositions, methods for polymerizing such compositions, and to polymerized silicone compositions formed thereby. In one embodiment, a polymerizable composition includes one or more first organosiloxanes or organosilanes, each comprising a plurality of silicon hydride functional groups, one or more second organosiloxanes or organosilanes, each comprising a plurality of reactive heterocycloalkyl functional groups; and one or more third organosiloxanes or organosilanes, each comprising at least about one silicon hydride functional group and at least about one reactive heterocycloalkyl functional group; and an effective amount of a borane catalyst, present, for example, in an amount within the range of 0.0005 wt % to about 10 wt %, wherein the ratio of reactive heterocycloalkyl functional groups to reactive silicon hydride functional groups in the composition is in the range of 1:5 to 5:1. The compositions and methods are useful, for example, in adhesive and sealing applications.

    Bi-directional rotary valve
    554.
    发明授权
    Bi-directional rotary valve 有权

    公开(公告)号：US10184568B2

    公开(公告)日：2019-01-22

    申请号：US14498892

    申请日：2014-09-26

    Applicant: Saint-Gobain Performance Plastics Corporation

    Inventor： Jon M. Lenhert ,  Aaron V. Gordon

    IPC: F16K1/226

    Abstract: A bi-directional cryogenic rotary valve having a housing defining a fluid passageway, a control member rotatably disposed within the fluid passageway, and a seal assembly positioned along an inner surface of the housing to provide a bubble tight seal between the housing and the control member. The rotary valve adapted to operate at or near cryogenic temperatures (i.e., at −160° C.) while maintaining an effective seal in both the forward and reverse directions. The rotary valve being capable of retrofitting against wear and operational stress sustained from repeated use and operation.

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