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    • 5. 发明申请
    • POLYURETHANE/UREA SILICON CARBIDE NANOCOMPOSITE
    • 聚氨酯/尿素碳化硅纳米复合材料
    • WO2017027231A1
    • 2017-02-16
    • PCT/US2016/044747
    • 2016-07-29
    • 3M INNOVATIVE PROPERTIES COMPANY
    • MARX, Ryan E.LOMEDA, Jay R.THOMPSON, Wendy L.DAMTE, Gezahegn D.TARBUTTON, Kent, S.KAYSER, Armin
    • C08K3/34C08K9/06
    • C08K3/34B82Y30/00C01B32/956C01P2004/64C08K3/14C08K9/06C08L75/02C08L75/08C08L2201/08C08L2203/16C08L75/00
    • Polyurethane/urea nanocomposites, precursors thereof, and methods of their manufacture and use are provided, the nanocomposites comprising: a) a polyurethane/urea polymer matrix, and b) surface modified silicon carbide nanoparticles dispersed within and covalently bound to a polyurethane/urea polymer comprising the polyurethane/urea polymer matrix. In some embodiments, the surface modified silicon carbide nanoparticle comprises a silicon carbide core and a linking group covalently bound to the surface of the silicon carbide core and covalently bound to the polyurethane/urea polymer. In some embodiments, the linking group is a moiety according to Formula where the urethane group of the linking group is covalently bound to the polyurethane/urea polymer; and where each open valence of the silicon atom of the linking group is bound to a hydroxyl group (-OH) or is covalently bound to the surface of the silicon carbide core through an oxygen atom.
    • 提供了聚氨酯/尿素纳米复合材料,其前体及其制造和使用方法,所述纳米复合材料包括:a)聚氨酯/脲聚合物基体,以及b)分散在聚氨酯/脲聚合物内并共价结合的表面改性的碳化硅纳米颗粒 包括聚氨酯/脲聚合物基质。 在一些实施方案中,表面改性的碳化硅纳米颗粒包括碳化硅芯和共价结合到碳化硅芯的表面并与聚氨酯/脲聚合物共价结合的连接基团。 在一些实施方案中,连接基团是根据式的部分,其中连接基团的氨基甲酸酯基团与聚氨酯/脲聚合物共价结合; 并且其中连接基团的硅原子的每个开放价态与羟基(-OH)结合或通过氧原子共价结合到碳化硅芯的表面。
    • 8. 发明申请
    • EROSION RESISTANT FILMS FOR USE ON HEATED AERODYNAMIC SURFACES
    • 用于加热空气动力学表面的耐腐蚀膜
    • WO2009023424A2
    • 2009-02-19
    • PCT/US2008/071293
    • 2008-07-28
    • 3M INNOVATIVE PROPERTIES COMPANY
    • MARX, Ryan E.FEISEL, Bryan C.WEISS, Douglas E.
    • C09J7/02B64D15/02B64D15/12
    • B64C1/12B32B37/12B32B2405/00B32B2605/18B64D15/02B64D15/12C08G18/0895C08G18/4277C08G18/664C08G2270/00C09J7/22C09J7/25C09J7/38C09J133/08C09J2201/606C09J2205/114C09J2400/283C09J2423/045C09J2433/00C09J2433/006C09J2467/005C09J2475/006Y10T428/28
    • The present disclosure provides a tape comprising: a) a single layer comprising a crosslinked polymer, selected from the group consisting of crosslinked polyurethane, crosslinked polyurea, and crosslinked mixed polyurethane/polyurea polymer, and b) an adhesive layer. In another embodiment, the disclosure provides an erosion resistant construction comprising, first, an element of an aircraft comprising: an aircraft skin segment having an external surface, and a deicing mechanism associated with said aircraft skin segment capable of heating said external surface to temperatures in excess of 65°C; and, second, a tape comprising: at least one layer comprising a crosslinked elastomeric polymer, which may be a crosslinked polymer selected from the group consisting of crosslinked polyurethane, crosslinked polyurea, and crosslinked mixed polyurethane/polyurea polymer, and an adhesive layer; wherein the tape is bonded to the external surface of the aircraft skin segment by the adhesive layer. In another embodiment, the tape comprises at least one layer comprising a semi-interpenetrating polymer network of a crosslinked acrylate and an uncrosslinked polymer selected from the group consisting of polyurethane, polyurea, and mixed polyurethane/polyurea polymer.
    • 本公开提供了一种带,其包括:a)包含选自交联聚氨酯,交联聚脲和交联的混合聚氨酯/聚脲聚合物的交联聚合物的单层,和b)粘合剂层。 在另一个实施例中,本发明提供一种防侵蚀结构,其包括:首先是飞机的元件,其包括:具有外表面的飞行器皮肤部分,以及与所述飞行器皮肤部分相关联的除冰机构,其能够将所述外部表面加热到 超过65°C; 以及第二种,包括:包含交联的弹性体聚合物的至少一层,其可以是选自交联聚氨酯,交联聚脲和交联的混合聚氨酯/聚脲聚合物的交联聚合物和粘合剂层; 其中胶带通过粘合剂层结合到飞行器皮肤区段的外表面。 在另一个实施方案中,带包括至少一层,其包含交联的丙烯酸酯和选自聚氨酯,聚脲和混合的聚氨酯/聚脲聚合物的未交联聚合物的半互穿聚合物网络。