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    NOVEL TRANSPARENT POLYMERS AND METHODS FOR MAKING THE SAME
    13.
    发明申请
    NOVEL TRANSPARENT POLYMERS AND METHODS FOR MAKING THE SAME 有权
    新型透明聚合物及其制备方法

    公开(公告)号：US20170022324A1

    公开(公告)日：2017-01-26

    申请号：US14807243

    申请日：2015-07-23

    Applicant: The Boeing Company

    Inventor： Andrew P. Nowak ,  April R. Rodriguez ,  Erin E. Stache

    IPC: C08G75/26 ,  C08G75/04

    CPC classification number: C08G75/26 ,  C08G18/18 ,  C08G18/3876 ,  C08G18/722 ,  C08G18/73 ,  C08G18/758 ,  C08G75/00 ,  C08G75/045 ,  G02B1/04 ,  G02B1/043 ,  C08L81/02

    Abstract: A novel copolymer is made from a thiol terminated hydrocarbon monomer and at least one additional monomer chosen from the compounds of i) a terminally unsaturated hydrocarbon monomer, ii) an isocyanate functionalized hydrocarbon monomer and iii) a silane monomer substituted with two or more C2 to C8 terminally unsaturated alkenyl groups or C2 to C8 terminally unsaturated alkynyl groups, wherein the copolymer is a linear polymer, branched polymer or crosslinked polymer network, with the following provisos: if the at least one additional monomer is either a) a terminally unsaturated hydrocarbon monomer that is not a polymer having 12 carbon atoms or more, or b) a silane monomer, then the thiol terminated hydrocarbon monomer includes a saturated hydrocarbon ring with two or more terminal thiol groups attached to the hydrocarbon ring; if the terminally unsaturated hydrocarbon monomer is polybutadiene, the polybutadiene contains from about 0 mol % to about 30 mol % of polymer units in the cis-1,4-butadiene form; and if the at least one additional monomer is an isocyanate functionalized hydrocarbon monomer, then a ratio of the molecular mass of the thiol terminated hydrocarbon monomer to the number of sulfur atoms in the thiol terminated hydrocarbon monomer ranges from 65 to 500.

    Abstract translation: 新型共聚物由硫醇封端的烃单体和至少一种另外的单体制备，所述单体选自i）末端不饱和烃单体，ii）异氰酸酯官能化的烃单体，和iii）被两个或更多个C2取代的硅烷单体 C8末端不饱和烯基或C2至C8末端不饱和炔基，其中所述共聚物是线性聚合物，支化聚合物或交联聚合物网络，具有以下条件：如果所述至少一种另外的单体是a）末端不饱和烃单体 即不是具有12个碳原子或更多个碳原子的聚合物，或b）一种硅烷单体，那么硫醇封端的烃单体包括一个具有两个或多个连接到烃环上的末端巯基的饱和烃环; 如果末端不饱和烃单体是聚丁二烯，则聚丁二烯含有约0mol％至约30mol％的顺式-1,4-丁二烯形式的聚合物单元; 并且如果至少一种另外的单体是异氰酸酯官能化的烃单体，则硫醇封端的烃单体的分子量与硫醇封端的烃单体中的硫原子数之比为65-500。

    Electromagnetic shielding material and methods of formation
    14.
    发明授权
    Electromagnetic shielding material and methods of formation 有权

    公开(公告)号：US10932399B1

    公开(公告)日：2021-02-23

    申请号：US16722233

    申请日：2019-12-20

    Applicant: The Boeing Company

    Inventor： Andrew P. Nowak ,  Adam F. Gross ,  April R. Rodriguez ,  Russell Mott ,  Richard E. Sharp ,  Ashley Dustin

    IPC: H05K9/00 ,  B29C70/88 ,  B22F1/02

    Abstract: Examples include a method of forming an electromagnetic shielding material, the method including: applying a magnetic field to a precursor material that includes first ferromagnetic particles embedded within a first portion of a matrix material and second ferromagnetic particles embedded within a second portion of the matrix material, thereby causing the first ferromagnetic particles and the second ferromagnetic particles to move such that longitudinal axes of the first ferromagnetic particles and the second ferromagnetic particles become more aligned with the magnetic field; thereafter forcing the first portion of the matrix material through a filter, thereby moving the first ferromagnetic particles from the first portion of the matrix material into the second portion of the matrix material; and curing the second portion of the matrix material to form the electromagnetic shielding material. Additional examples include an electromagnetic shielding material and an apparatus for forming an electromagnetic shielding material.

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