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    Process for Forming Filled Bearings from Fluoropolymer Dispersions Stabilized with Anionic Polyelectrolyte Dispersing Agents
    22.
    发明申请
    Process for Forming Filled Bearings from Fluoropolymer Dispersions Stabilized with Anionic Polyelectrolyte Dispersing Agents 有权
    用阴离子聚电解质分散剂稳定的含氟聚合物分散体形成填充轴承的方法

    公开(公告)号：US20100239768A1

    公开(公告)日：2010-09-23

    申请号：US12791906

    申请日：2010-06-02

    Applicant: Robert John Cavanaugh ,  Clay Woodward Jones

    Inventor： Robert John Cavanaugh ,  Clay Woodward Jones

    IPC: B05D3/02

    CPC classification number: C08L27/18 ,  C08K3/24 ,  C08L1/08 ,  C08L33/02 ,  C08L33/14 ,  C08L79/08 ,  C09D127/18 ,  C08L2666/26 ,  C08L2666/04 ,  C08L2666/20

    Abstract: The present invention provides a process for making a filled fluoropolymer bearing comprising providing an aqueous fluoropolymer dispersion comprising fluoropolymer particles and anionic polyelectrolyte dispersing agent in an amount sufficient for stabilization. The dispersion contains less than about 300 ppm fluorosurfactant based on the weight of the dispersion. The dispersion is coagulated to make a mush and a bearing filler is added to the dispersion prior to or after making the mush. The mush containing bearing filler is applied onto a bearing substrate to produce a coated substrate which is sintered and formed into a bearing.

    Abstract translation: 本发明提供了一种制备填充的含氟聚合物轴承的方法，包括提供含氟聚合物颗粒和阴离子聚电解质分散剂的水性含氟聚合物分散体，其量足以使其稳定。 基于分散体的重量，分散体含有少于约300ppm的含氟表面活性剂。 分散体凝结成糊状物，并且在制备糊料之前或之后将分散体加入到分散体中。 将含糊的含轴承填料施加到轴承基材上以制备被烧结并形成轴承的涂覆基材。

    Spinning low fluorosurfactant fluoropolymer dispersions
    24.
    发明授权
    Spinning low fluorosurfactant fluoropolymer dispersions 有权
    旋转低含氟表面活性剂含氟聚合物分散体

    公开(公告)号：US07390448B2

    公开(公告)日：2008-06-24

    申请号：US11494893

    申请日：2006-07-28

    Applicant: Devin Flowers ,  Clay Woodward Jones ,  Robert John Cavanaugh

    Inventor： Devin Flowers ,  Clay Woodward Jones ,  Robert John Cavanaugh

    IPC: D01F6/12

    CPC classification number: D01F6/12 ,  C08L1/00 ,  C08L27/18 ,  C08L29/14 ,  C08L71/02 ,  C08L2205/03 ,  C08L2205/16 ,  D01F6/48 ,  Y10T428/3154 ,  C08L2666/04 ,  C08L2666/02

    Abstract: A process for dispersion spinning non-melt-processible fluoropolymer fiber in which a mixture of an aqueous dispersion of non-melt-processible polytetrafluoroethylene or modified polytetrafluoroethylene fluoropolymer particles and an aqueous solution of matrix polymer is formed. The non melt-processible particles have an SSG of less than about 2.40. The aqueous dispersion contains an aliphatic alcohol ethoxylate nonionic surfactant having a 20% residuals temperature determined by thermogravimetric analysis (TGA) of less than about 290° C. and is essentially free of surfactants containing aromatic groups. The dispersion has a fluorinated surfactant content of less than about 300 ppm. The mixture is extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce. The present invention also provides a spinning composition useful for the dispersion spinning of non-melt-processible fluoropolymer fiber.

    Abstract translation: 一种分散纺丝非熔体加工性含氟聚合物纤维的方法，其中形成了不可熔融加工的聚四氟乙烯或改性聚四氟乙烯含氟聚合物颗粒的水分散体和基质聚合物水溶液的混合物。 不可熔融加工的颗粒具有小于约2.40的SSG。 水性分散体含有脂肪醇乙氧基化物非离子表面活性剂，其具有通过热重分析（TGA）测定的低于约290℃的20％残留温度，并且基本上不含含芳族基团的表面活性剂。 分散体具有小于约300ppm的氟化表面活性剂含量。 将混合物挤压成含有浓缩离子的凝固浴，其凝结基质聚合物以形成中间纤维结构。 中间纤维结构被烧结以分解基体聚合物并聚结。 本发明还提供了一种可用于不可熔融加工的含氟聚合物纤维的分散纺丝的纺丝组合物。

    Dispersion spinning core-shell fluoropolymers
    25.
    发明授权
    Dispersion spinning core-shell fluoropolymers 有权
    分散纺丝芯 - 壳含氟聚合物

    公开(公告)号：US07347960B2

    公开(公告)日：2008-03-25

    申请号：US10980701

    申请日：2004-11-03

    Applicant: Clay Woodward Jones

    Inventor： Clay Woodward Jones

    IPC: D01F6/12

    CPC classification number: D01D5/06 ,  C08L1/26 ,  C08L27/18 ,  D01D1/02 ,  D01F1/02 ,  D01F6/12 ,  D01F6/48 ,  Y10T428/3154 ,  C08L2666/26

    Abstract: A process is disclosed for dispersion spinning non-melt-processible fluoropolymer fiber in which a mixture of an aqueous dispersion of non-melt-processible fluoropolymer particles and an aqueous solution of a matrix polymer is formed. The non-melt-processible fluoropolymer particles have an SSG of less than about 2.40 and comprise a core of high molecular weight polytetrafluoroethylene and a shell of lower molecular weight polytetrafluoroethylene or modified polytetrafluoroethylene. The mixture is extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce the non-melt-processible fluoropolymer particles to form the fiber. The present invention also provides for spinning composition useful for the dispersion spinning of non-melt-processible fluoropolymer fiber.

    Abstract translation: 公开了用于分散纺丝不可熔融加工的含氟聚合物纤维的方法，其中形成不可熔融加工的含氟聚合物颗粒的水分散体和基质聚合物的水溶液的混合物。 不可熔融加工的含氟聚合物颗粒具有小于约2.40的SSG，并且包含高分子量聚四氟乙烯核和低分子量聚四氟乙烯或改性聚四氟乙烯的壳。 将混合物挤压成含有浓缩离子的凝固浴，其凝结基质聚合物以形成中间纤维结构。 中间纤维结构被烧结以分解基质聚合物并聚结不可熔融加工的含氟聚合物颗粒以形成纤维。 本发明还提供了用于不可熔融加工的含氟聚合物纤维的分散纺丝的纺丝组合物。

    Aqueous Fluoropolymer Dispersion Stabilized with Amine Oxide Surfactant and Process for Making Coagulated Fluoropolymer Resin
    27.
    发明申请
    Aqueous Fluoropolymer Dispersion Stabilized with Amine Oxide Surfactant and Process for Making Coagulated Fluoropolymer Resin 有权
    用氧化胺表面活性剂稳定的含氟聚合物分散体和制备凝结的含氟聚合物树脂的方法

    公开(公告)号：US20110207905A1

    公开(公告)日：2011-08-25

    申请号：US13097151

    申请日：2011-04-29

    Applicant: Clay Woodward Jones

    Inventor： Clay Woodward Jones

    IPC: C08F114/18

    CPC classification number: C08K5/32 ,  C08L27/12

    Abstract: An aqueous fluoropolymer dispersion comprising an aqueous medium, fluoropolymer particles, and an amine oxide surfactant. Coagulated fluoropolymer resin is produced from the dispersion by adding an acidic reagent in sufficient amount to cause coagulation and separation of the coagulated fluoropolymer resin from the aqueous medium. Another particulate component such as particular polymer, filler, pigment, solid lubricant, etc., may be added to the dispersion and co-coagulated to form a mixture of coagulated fluoropolymer resin and particulate component.

    Abstract translation: 一种包含含水介质，含氟聚合物颗粒和氧化胺表面活性剂的含氟聚合物水分散体。 通过加入足够量的酸性试剂使分散体从凝胶化的含氟聚合物树脂与水性介质凝结分离，由分散体生成凝聚的含氟聚合物树脂。 可以将另外的颗粒组分如特定的聚合物，填料，颜料，固体润滑剂等添加到分散体中并共凝固形成凝固的含氟聚合物树脂和颗粒组分的混合物。

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