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    Nanomodified backbones for polyimides with difunctional and mixed-functionality endcaps
    21.
    发明授权
    Nanomodified backbones for polyimides with difunctional and mixed-functionality endcaps 有权

    公开(公告)号：US09670325B2

    公开(公告)日：2017-06-06

    申请号：US15084060

    申请日：2016-03-29

    Applicant: THE BOEING COMPANY

    Inventor： Thomas K. Tsotsis

    IPC: C08G77/388 ,  C08G73/10 ,  C08L79/08

    CPC classification number: C08G77/388 ,  C08G73/101 ,  C08G73/1014 ,  C08L79/08

    Abstract: Polyimides containing a backbone with at least one nanoparticle component and made from oligomers having endcaps that are difunctional or a mix of di- and monofunctionality are provided. The endcaps may be nadic or phenylethynyl. The backbone may be wholly inorganic or made from a mixture of inorganic and organic groups. The oligomers may be created in-situ using standard polymerization of monomeric reactants chemistry using a solvent or may be provided as a pre-imidized compound that may be either a solid or liquid. It is believed that the nanoparticle component of the polymer backbone provides superior thermo-oxidative stability verses unmodified organic backbones. It is further believed that providing difunctional or a mixture of di- and monofunctional endcaps allows for increased crosslinking to provide improved strength and stiffness verses wholly monofunctional endcapped oligomers for polyimides. The nanoparticle is part of the backbone of the polymer and not solely a pendant group.

    Nanomodified backbones for polyimides with difunctional and mixed-functionality endcaps
    22.
    发明授权
    Nanomodified backbones for polyimides with difunctional and mixed-functionality endcaps 有权
    具有双功能和混合功能性端帽的聚酰亚胺的纳米改性骨架

    公开(公告)号：US09505864B2

    公开(公告)日：2016-11-29

    申请号：US14473232

    申请日：2014-08-29

    Applicant: THE BOEING COMPANY

    Inventor： Thomas K. Tsotsis

    IPC: C08F238/00 ,  C08F226/06 ,  C08G73/10 ,  C08L79/08

    CPC classification number: C08F238/00 ,  C08F226/06 ,  C08G73/101 ,  C08L79/08

    Abstract: Polyimides containing a backbone with at least one nanoparticle component and made from oligomers having endcaps that are difunctional or a mix of di- and monofunctionality are provided. The endcaps may be nadic or phenylethynyl. The backbone may be wholly inorganic or made from a mixture of inorganic and organic groups. The oligomers may be created in-situ using standard polymerization of monomeric reactants chemistry using a solvent or may be provided as a pre-imidized compound that may be either a solid or liquid. It is believed that the nanoparticle component of the polymer backbone provides superior thermo-oxidative stability verses unmodified organic backbones. It is further believed that providing difunctional or a mixture of di- and monofunctional endcaps allows for increased crosslinking to provide improved strength and stiffness verses wholly monofunctional endcapped oligomers for polyimides. The nanoparticle is part of the backbone of the polymer and not solely a pendant group.

    Abstract translation: 提供含有具有至少一个纳米颗粒组分并由具有双官能的端帽或具有二官能度和单官能团的混合物的寡聚物制成的骨架的聚酰亚胺。 端帽可以是天然或苯基乙炔基。 骨架可以是完全无机的或由无机和有机基团的混合物制成。 可以使用溶剂的单体反应物化学的标准聚合原位产生低聚物，或者可以提供为可以是固体或液体的预酰亚胺化化合物。 据信聚合物骨架的纳米颗粒组分提供了与未改性的有机骨架相当的优异的热氧化稳定性。 进一步认为，提供二官能或双官能末端封端的混合物允许增加交联以提供改进的强度和刚度与聚酰亚胺的全部单官能封端的低聚物。 纳米颗粒是聚合物骨架的一部分，而不仅仅是侧基。

    Veil-stabilized Composite with Improved Tensile Strength
    23.
    发明申请
    Veil-stabilized Composite with Improved Tensile Strength 审中-公开
    具有提高拉伸强度的面纱稳定复合材料

    公开(公告)号：US20160009051A1

    公开(公告)日：2016-01-14

    申请号：US13753708

    申请日：2013-01-30

    Applicant: The Boeing Company

    Inventor： Thomas K. Tsotsis

    IPC: B32B5/02 ,  B32B37/14 ,  B32B5/26

    CPC classification number: B32B5/022 ,  B32B5/028 ,  B32B5/06 ,  B32B5/26 ,  B32B7/02 ,  B32B37/14 ,  B32B2250/20 ,  B32B2250/42 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2262/02 ,  B32B2262/106 ,  B32B2305/076 ,  B32B2305/20 ,  B32B2305/72 ,  B32B2307/54 ,  B32B2307/542 ,  B32B2605/18 ,  C08J5/24

    Abstract: A veil-stabilized composite may include at least one reinforcing layer, the reinforcing layers being formed of a reinforcing material, a plurality of interlayers disposed alternately between and bonded to the reinforcing layers, each of the interlayers being formed of an interlayer material having a first distortional-deformation capability, and a matrix material infused in the reinforcing layers and the interlayers, the matrix material having a second distortional-deformation capability, wherein the first distortional-deformation capability is greater than the second distortional-deformation capability to increase tensile strength of the composite.

    Abstract translation: 面纱稳定的复合材料可以包括至少一个增强层，所述增强层由增强材料形成，多个中间层交替地设置在所述增强层之间并与所述增强层接合，每个所述夹层由具有第一 所述基体材料具有第二变形变形能力，其中所述第一变形变形能力大于所述第二变形变形能力以提高所述第二变形变形能力，以增加所述第二变形变形能力， 复合材料。

    Systems for manufacturing modular rotor blades
    24.
    发明授权
    Systems for manufacturing modular rotor blades 有权

    公开(公告)号：US11186045B2

    公开(公告)日：2021-11-30

    申请号：US16948286

    申请日：2020-09-11

    Applicant: The Boeing Company

    Inventor： Marc R. Matsen ,  Thomas K. Tsotsis

    IPC: B29C65/00 ,  B29C65/02 ,  B29L31/08

    Abstract: A system for manufacturing a rotor blade comprises a first tooling, positioned at a factory location and configured to assemble a first blade module, comprising a first-module skin and a first-module spar, each comprising a first thermoplastic polymer and a first reinforcement material. The system also comprises a second tooling, configured to assemble a second blade module, comprising a second-module skin and a second-module spar, each comprising a second thermoplastic polymer and a second reinforcement material. The system further comprises a first support, positioned at a field location and configured to receive the first blade module, and a second support, positioned at the field location and configured to receive the second blade module. The system also comprises a spar welding assembly, positioned at the field location and configured to join the first-module spar with the second-module spar.

    Barrier coating structure
    26.
    发明授权
    Barrier coating structure 有权

    公开(公告)号：US11066561B2

    公开(公告)日：2021-07-20

    申请号：US16375321

    申请日：2019-04-04

    Applicant: THE BOEING COMPANY

    Inventor： Thomas K. Tsotsis

    IPC: B32B9/00 ,  B32B15/08 ,  C09D5/24 ,  C09D171/00 ,  C09D133/24 ,  C09D179/08 ,  C09D179/00 ,  C09D183/04 ,  C09D5/00 ,  B32B9/04 ,  B32B15/00

    Abstract: The present disclosure provides a barrier-coating structure that includes a polymer-matrix composite having a first surface and a second surface. The barrier-coating structure includes a flexible layer having a first surface and a second surface and a sol-gel layer having a first surface and a second surface. The first surface of the flexible layer contacts the second surface of the flexible layer. The barrier-coating structure includes a barrier layer having a first surface and a second surface. The sol-gel and/or the barrier layer may comprise one or more reactive substituents. The first surface of the barrier layer may be a laser-ablated surface.

    COMPOSITE STRUCTURES AND METHODS FOR MANUFACTURING COMPOSITE STRUCTURES
    27.
    发明申请
    COMPOSITE STRUCTURES AND METHODS FOR MANUFACTURING COMPOSITE STRUCTURES 有权

    公开(公告)号：US20210122124A1

    公开(公告)日：2021-04-29

    申请号：US16660923

    申请日：2019-10-23

    Applicant: The Boeing Company

    Inventor： Thomas K. Tsotsis

    IPC: B29C65/00 ,  B64F5/10 ,  B29D99/00

    Abstract: A method for manufacturing a composite structure. The method includes depositing a plurality of thermoplastic particles onto at least one of a surface of a filler member and a surface of a structural member. The method further includes assembling the filler member with the structural member such that the plurality of thermoplastic particles are disposed proximate an interface between the filler member and the structural member.

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