High stability polytetrafluoroethylene dispersions and method for obtaining same
    12.
    发明申请
    High stability polytetrafluoroethylene dispersions and method for obtaining same 审中-公开
    高稳定性聚四氟乙烯分散体及其制备方法

    公开(公告)号:US20050096425A1

    公开(公告)日:2005-05-05

    申请号:US10947531

    申请日:2004-09-22

    Abstract: A process for stabilizing aqueous dispersions of polytetrafluoroethylene (PTFE) or co- and terpolymers of PTFE by adding a macromolecular species directly to the aqueous dispersion. Surprisingly, it has been observed that after the macromolecular species has been added to the dispersion of PTFE or co- and terpolymers of PTFE, the dispersions are very stable, do not readily coagulate, and remain stable even when subjected to freeze/melt cycles. The amount of macromolecular species which may be added may vary from about 0.1 wt. % to about 20.0 wt. %, for example, and suitable macromolecular species include polyacrylic acid (PAA), polyvinylalcohol (PVOH), polyethyleneimies (PEI), and polyethylene glycol (PEG), and others. The present method is particularly effective for stabilizing commercially available “unstabilized” aqueous dispersions of PTFE or co- and terpolymers of PTFE which do not include a surfactant or are substantially free of surfactant.

    Abstract translation: 通过将大分子物质直接加入到水分散体中来稳定聚四氟乙烯(PTFE)或PTFE的共聚物和三元共聚物的水分散体的方法。 令人惊奇的是,已经观察到,在将大分子物质添加到PTFE或PTFE的共聚物和三元共聚物的分散体中之后,分散体非常稳定,即使在进行冷冻/熔融循环时也不容易凝结,并保持稳定。 可加入的大分子物质的量可以为约0.1wt。 %至约20.0重量% 例如,合适的大分子物质包括聚丙烯酸(PAA),聚乙烯醇(PVOH),聚乙二醇(PEI)和聚乙二醇(PEG)等。 本方法对于稳定市售的“不稳定”的PTFE水性分散体或不含表面活性剂或基本上不含表面活性剂的PTFE的共聚和三元共聚物特别有效。

    Special Golf Swing Training Aid
    13.
    发明申请

    公开(公告)号:US20170189780A1

    公开(公告)日:2017-07-06

    申请号:US15382537

    申请日:2016-12-16

    Abstract: This is an Improved Golf Practice Device usable for practice under replicated golfing conditions. It relates to a golf practice device with a retrievable tethered ball and which is usable for practice under replicated golfing conditions. It is made of a golf club grip; an inner dowel shaft for grip; an insert in the dowel shaft; a manner for retaining such as an insert; a flexible cord, rope or the like such as a parachute cord; a manner for retaining cord in shaft such as a washer and knot in cord; a spherical resistance device such as a whiffle ball or the like wherein the device provides a training aid for a golfer to improve his normal golf swing, cadence, and timing rhythm throughout the golf swing using all of one's body parts, the leg movement, the arms, the wrists, everything when one swings through the stroke.

    Blended fluoropolymer compositions
    17.
    发明授权
    Blended fluoropolymer compositions 有权
    混合的含氟聚合物组合物

    公开(公告)号:US09074084B2

    公开(公告)日:2015-07-07

    申请号:US13296752

    申请日:2011-11-15

    Abstract: Blended fluoropolymer compositions are provided, in which a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first fluoropolymer may be polytetrafluoroethylene (PTFE), such as a low molecular weight PTFE (LPTFE) in the form of an aqueous dispersion having a mean particle size of less than 1.0 microns (μm) and a first melt temperature (Tm) of 332° C. or less. The second fluoropolymer may be a melt processable fluoropolymer (MPF), such as methylfluoroalkoxy (MFA), fluorinated ethylene propylene (FEP), or perfluoroalkoxy (PFA), for example, in the form of an aqueous dispersion having a mean particle size of less than 1.0 microns (μm). When the blended fluoropolymer composition is dried, a crystal structure representing a true alloy of the fluoropolymers is formed, having melt characteristics that differ from those of the individual fluoropolymers.

    Abstract translation: 提供了混合的含氟聚合物组合物,其中第一含氟聚合物的液体分散体与第二含氟聚合物的液体分散体共混。 第一含氟聚合物可以是聚四氟乙烯(PTFE),例如水分散体形式的低分子量PTFE(LPTFE),其平均粒度小于1.0微米(μm),第一熔融温度(Tm)为332 ℃以下。 第二含氟聚合物可以是可熔融加工的含氟聚合物(MPF),例如甲基氟代烷氧基(MFA),氟化乙烯丙烯(FEP)或全氟烷氧基(PFA),例如水平分散体形式,其平均粒径较小 大于1.0微米(μm)。 当混合的含氟聚合物组合物被干燥时,形成表示含氟聚合物的真正合金的晶体结构,其熔体特性与单独的含氟聚合物的熔体特性不同。

    Method of Repairing Tong Jaw
    18.
    发明申请
    Method of Repairing Tong Jaw 审中-公开
    Tong aw修复方法

    公开(公告)号:US20100050407A1

    公开(公告)日:2010-03-04

    申请号:US12200070

    申请日:2008-08-28

    CPC classification number: E21B19/161 Y10T29/49735

    Abstract: A method for repairing a damaged or corroded tong jaw having a jaw root and an original seating component. The method includes the steps of: (a) machining away corroded or damaged portions of the original seating component; (b) machining into a non-damaged portion of the original seating component and/or jaw root, thereby forming a machined base configured to receive a new seating component, the new seating component including a feature adapted for engaging the machined base. The new seating component is then connected onto the machined base.

    Abstract translation: 一种用于修复具有颚骨根部和原始座椅部件的损坏或腐蚀的钳爪的方法。 该方法包括以下步骤:(a)加工原有座椅部件的腐蚀或损坏部分; (b)加工成原始座椅部件和/或颚骨根部的未损坏部分,由此形成被配置成接纳新的座椅部件的加工底座,所述新的座椅部件包括适于接合加工底座的特征。 然后将新的座椅部件连接到加工的基座上。

    BLENDED FLUOROPOLYMER COMPOSITIONS
    19.
    发明申请
    BLENDED FLUOROPOLYMER COMPOSITIONS 有权
    混合氟聚合物组合物

    公开(公告)号:US20090317553A1

    公开(公告)日:2009-12-24

    申请号:US12468580

    申请日:2009-05-19

    Abstract: Blended fluoropolymer compositions are provided. In one embodiment, a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first fluoropolymer may be polytetrafluoroethylene (PTFE), such as a low molecular weight PTFE (LPTFE) that has been polymerized via a dispersion or emulsion polymerization process, and which has not been agglomerated, irradiated, or thermally degraded. The LPTFE may be in the form of an aqueous dispersion, having a mean particle size of less than 1.0 microns (μm), with the LPTFE having a first melt temperature (Tm) of 332° C. or less. The second fluoropolymer may be a melt processible fluoropolymer (MPF), such as methylfluoroalkoxy (MFA), fluorinated ethylene propylene (FEP), or perfluoroalkoxy (PFA), for example, in the form of an aqueous dispersion, and having a mean particle size of less than 1.0 microns (μm). Blending of the dispersions facilitates interaction of the LPTFE and MPF on a submicron level to facilitate intimate blending such that, when the blended fluoropolymer composition is dried, a crystal structure representing a true alloy of the fluoropolymers is formed, having melt characteristics that differ from those of the individual fluoropolymers. The blended fluoropolymer composition may be used to provide a coating having improved impermeability, stain resistance, abrasion resistance, smoothness, and higher contact angles.

    Abstract translation: 提供混合的含氟聚合物组合物。 在一个实施方案中,将第一含氟聚合物的液体分散体与第二含氟聚合物的液体分散体共混。 第一含氟聚合物可以是聚四氟乙烯(PTFE),例如已经通过分散体或乳液聚合方法聚合并且未被聚集,照射或热降解的低分子量PTFE(LPTFE)。 LPTFE可以是水分散体的形式,其平均粒度小于1.0微米(mum),LPTFE的第一熔融温度(Tm)为332℃或更低。 第二含氟聚合物可以是可熔融加工的含氟聚合物(MPF),例如甲基氟代烷氧基(MFA),氟化乙烯丙烯(FEP)或全氟烷氧基(PFA),例如以水分散体的形式,并且具有平均粒径 小于1.0微米(mum)。 分散体的混合促进了LPTFE和MPF在亚微米级的相互作用,以促进紧密共混,使得当混合的含氟聚合物组合物被干燥时,形成表示含氟聚合物的真正合金的晶体结构,其熔体特性与那些 的各种含氟聚合物。 混合的含氟聚合物组合物可用于提供具有改进的不渗透性,耐污性,耐磨性,光滑度和更高接触角的涂层。

    Method of treating fluoropolymer particles and the products thereof
    20.
    发明授权
    Method of treating fluoropolymer particles and the products thereof 失效
    氟聚合物颗粒及其制品的处理方法

    公开(公告)号:US07220483B2

    公开(公告)日:2007-05-22

    申请号:US10345541

    申请日:2003-01-16

    Abstract: Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

    Abstract translation: 对含氟聚合物颗粒进行高能量处理,以改变颗粒表面的化学官能度,从而改变颗粒的表面特性。 这些特性提高了这些颗粒的有用性,并使其高度分散,甚至在水中。 表面处理的含氟聚合物颗粒经历化学交联过程,或者可以进行高能量处理工艺,并且可以任选地在上述方法之前用大分子化学物质进行预处理。 高能量处理可以用于表面处理含氟聚合物颗粒,并且在一些实施方案中,还可能引起含氟聚合物的链断裂,从而降低含氟聚合物颗粒的分子量。 表面处理的含氟聚合物颗粒可用于在各种基材上形成含氟聚合物涂层。

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