Self-Healing Composite of Thermoset Polymer and Programmed Super Contraction Fibers

    公开(公告)号:US20190210922A1

    公开(公告)日:2019-07-11

    申请号:US16353087

    申请日:2019-03-14

    摘要: A composition comprising thermoset polymer, shape memory polymer to facilitate macro scale damage closure, and a means for molecular scale healing is disclosed; the composition has the ability to resolve structural defects by a bio-mimetic close-then heal process. In use, the shape memory polymer serves to bring surfaces of a structural defect into approximation, whereafter use of the means for molecular scale healing allowed for movement of the healing means into the defect and thus obtain molecular scale healing. The means for molecular scale healing can be a thermoplastic such as fibers, particles or spheres which are used by heating to a level at or above the thermoplastic's melting point, then cooling of the composition below the melting temperature of the thermoplastic. Compositions of the invention have the ability to not only close macroscopic defects, but also to do so repeatedly even if another wound/damage occurs in a previously healed/repaired area.

    Seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace and fabricating method thereof
    3.
    发明授权
    Seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace and fabricating method thereof 有权
    抗震破坏变形可记录屈曲约束支架及其制造方法

    公开(公告)号:US08789319B2

    公开(公告)日:2014-07-29

    申请号:US13696501

    申请日:2011-10-09

    IPC分类号: E04B1/98 E04H9/02

    摘要: A seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace is disclosed. A core plate is disposed in the concrete filled steel tubular outer sleeve, and an end portion of the core plate is provided with a core plate stiffening rib. A brace deformation recording device includes two toothed racks, a ratchet gear, a first cord spool, and a second cord spool. The two toothed racks are fixed on the core plate stiffening rib, and ratchet pawls in the length direction thereof face opposite directions. The ratchet gear is fixedly connected to the concrete filled steel tubular outer sleeve. The ratchet gear is disposed between the two toothed racks. A tooth on the ratchet gear is engaged with a ratchet pawl. The first cord spool is fixed on the ratchet gear. The second cord spool is fixed on the core plate stiffening rib.

    摘要翻译: 公开了一种地震发生的抗破裂变形可记录屈曲约束支架。 芯板设置在混凝土填充的钢管外套筒中,芯板的端部设有芯板加强肋。 支架变形记录装置包括两个齿形齿条,棘轮齿轮,第一帘线卷轴和第二帘线卷轴。 两个齿条固定在芯板加强肋上,棘爪在其长度方向上面向相反方向。 棘轮固定连接到混凝土填充的钢管外套筒上。 棘齿设置在两个齿条之间。 棘轮上的齿与棘爪啮合。 第一个线轴被固定在棘轮上。 第二个线轴被固定在芯板加强筋上。

    Candle warmer lamp
    4.
    外观设计

    公开(公告)号:USD1013932S1

    公开(公告)日:2024-02-06

    申请号:US29889192

    申请日:2023-04-10

    申请人: Guoqiang Li

    设计人: Guoqiang Li

    摘要: FIG. 1 is a first perspective view of a candle warmer lamp showing my new design;
    FIG. 2 is a second perspective view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a back view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top view thereof;
    FIG. 8 is a bottom view thereof;
    FIG. 9 is a perspective view of another state of the candle warmer lamp thereof;
    FIG. 10 is a perspective view of another state of the candle warmer lamp thereof; and,
    FIG. 11 is an enlarged view of the selected portion 11 in FIG. 1.
    The broken lines shown in the drawings depict portions of the candle warmer lamp that form no part of the claimed design.

    Smart Rutting and Cracking Resistant Asphalt Pavement Incorporating Shape Memory Polymers

    公开(公告)号:US20190284396A1

    公开(公告)日:2019-09-19

    申请号:US16299223

    申请日:2019-03-12

    申请人: Guoqiang Li

    发明人: Guoqiang Li

    IPC分类号: C08L95/00 E01C7/26

    摘要: The low temperature cracking and high temperature rutting of polymer-modified asphalt concrete pavement can be reduced. The composite includes asphalt and at least one polymer that expands at low temperature, triggered by cooling-induced tensile stress, to reduce thermal cracking. The composite includes at least one polymer that expands at high temperature, so that the composite recovers after compression induced by traffic loading at higher temperatures, thereby reducing rutting. The system reduces thermal stress, and reduces or even eliminates thermal cracking and rutting. Shape memory polymers (SMPs) are used to improve asphalt compositions so that they better resist both thermal cracking and rutting. The SMP(s) can be incorporated into the asphalt, or a portion of fine aggregates can be replaced with SMP particles or SMP fibers, or aggregate replacement and asphalt modification can be combined. An alternative embodiment uses a standalone SMP component within an asphalt pavement, for example the form of a pre-stretched SMP grid, or a pre-stretched SMP stress-absorbing membrane, or an SMP-modified asphalt tack coat, etc., to reduce cracking and to provide reinforcement.

    Conversion 9-dihydro-13-acetylbaccatin III into 10-deacetylbaccatin III
    10.
    发明授权
    Conversion 9-dihydro-13-acetylbaccatin III into 10-deacetylbaccatin III 失效
    将9-二氢-13-乙酰基浆果赤霉素III转化为10-脱乙酰基浆果赤霉素III

    公开(公告)号:US06812356B2

    公开(公告)日:2004-11-02

    申请号:US10254972

    申请日:2002-09-26

    IPC分类号: C07D30514

    CPC分类号: C07D305/14 Y02P20/55

    摘要: 9-dihydro-13-acetylbaccatin III, one of the chemicals obtained from Taxus canadensis is used to produce, inter alia, 10-decetylbaccatin III, a useful intermediate for the preparation of paclitaxel and analogues thereof The 9-dihydro-13-acetylbaccatin III is converted into the 10-deacetylbaccatin III by a simple three step process involving (a) replacement of the C-7 hydroxyl group of tho 9-dihydro compound with a protecting group, (b) the oxidizing of the C-7 protected compound to produce a C-9 ketone, and (c) the deprotecting of the C-9 ketone to produce 10-deacetylbaccatin III.

    摘要翻译: 9-二氢-13-乙酰浆果赤霉素III是从加拿大红豆杉获得的化学药品之一,尤其用于制备10-癸基浆果赤霉素III,其是制备紫杉醇及其类似物的有用中间体9-二氢-13-乙酰浆果赤霉素III 通过简单的三步法转化为10-脱乙酰基浆果赤霉素III,其包括(a)用保护基置换tho-二氢化合物的C 7羟基,(b)将C-7保护的化合物氧化成 产生C-9酮,和(c)C-9酮的脱保护产生10-脱乙酰基浆果赤霉素III。