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1.发明授权Viscosity control for reduced fluorosurfactant aqueous fluoropolymer dispersions by the addition of cationic surfactants 失效通过添加阳离子表面活性剂来降低含氟表面活性剂含水氟聚合物分散体的粘度控制公开(公告)号：US08329836B2
公开(公告)日：2012-12-11
申请号：US12501610
申请日：2009-07-13
IPC分类号： C08F2/10
CPC分类号： C09D127/18 , C08F6/16 , C08K5/19 , C08L27/12 , C08L27/18
摘要： A stabilized aqueous fluoropolymer dispersion comprising fluoropolymer particles, wherein the dispersion contains less that about 300 ppm fluorosurfactant based on the weight of the dispersion and a cationic surfactant. The cationic surfactant aids in reducing the viscosity of the dispersion and preferred cationic surfactants are volatile in coating or film casting operations involving drying and sintering of the dispersion.
摘要翻译： 包含含氟聚合物颗粒的稳定的含水氟聚合物分散体，其中所述分散体基于分散体的重量和阳离子表面活性剂包含少于约300ppm的含氟表面活性剂。 阳离子表面活性剂有助于降低分散体的粘度，优选的阳离子表面活性剂在涉及干燥和烧结分散体的涂布或薄膜浇铸操作中是挥发性的。
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2.发明授权Process for forming filled bearings from fluoropolymer dispersions stabilized with anionic polyelectrolyte dispering 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：US07914853B2
公开(公告)日：2011-03-29
申请号：US12791911
申请日：2010-06-02
IPC分类号： B05D3/02
CPC分类号： C08L27/18 , C08K3/24 , C08L1/08 , C08L33/02 , C08L33/14 , C08L79/08 , C09D127/18 , C08L2666/26 , C08L2666/04 , C08L2666/20
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07871673B2
公开(公告)日：2011-01-18
申请号：US12791906
申请日：2010-06-02
IPC分类号： B05D3/02
CPC分类号： C08L27/18 , C08K3/24 , C08L1/08 , C08L33/02 , C08L33/14 , C08L79/08 , C09D127/18 , C08L2666/26 , C08L2666/04 , C08L2666/20
摘要： 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.
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4.发明申请Viscosity Control for Reduced Fluorosurfactant Aqueous Fluoropolymer Dispersions by the Addition of Cationic Surfactants 失效通过添加阳离子表面活性剂降低含氟表面活性剂含水氟聚合物分散体的粘度控制公开(公告)号：US20090275693A1
公开(公告)日：2009-11-05
申请号：US12501610
申请日：2009-07-13
IPC分类号： C08L27/12
CPC分类号： C09D127/18 , C08F6/16 , C08K5/19 , C08L27/12 , C08L27/18
摘要： A stabilized aqueous fluoropolymer dispersion comprising fluoropolymer particles, wherein the dispersion contains less that about 300 ppm fluorosurfactant based on the weight of the dispersion and a cationic surfactant. The cationic surfactant aids in reducing the viscosity of the dispersion and preferred cationic surfactants are volatile in coating or film casting operations involving drying and sintering of the dispersion.
摘要翻译： 包含含氟聚合物颗粒的稳定的含水氟聚合物分散体，其中所述分散体基于分散体的重量和阳离子表面活性剂包含少于约300ppm的含氟表面活性剂。 阳离子表面活性剂有助于降低分散体的粘度，优选的阳离子表面活性剂在涉及干燥和烧结分散体的涂布或薄膜浇铸操作中是挥发性的。
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公开(公告)号：US5939193A
公开(公告)日：1999-08-17
申请号：US363029
申请日：1994-12-23
申请人： Boris J. Katsen , John P. McCue , John Cavanaugh
发明人： Boris J. Katsen , John P. McCue , John Cavanaugh
CPC分类号： G03G7/004 , G03G7/0006 , G03G7/0013 , G03G7/0046 , Y10S428/913 , Y10T428/24802 , Y10T428/24942 , Y10T428/2982 , Y10T428/31504 , Y10T428/31786 , Y10T428/31855
摘要： Provided is a transparent recording sheet useful in producing electrophotographic images for overhead projections. The recording sheet comprises a transparent polymeric base and an imaging layer. The imaging layer comprises at least one resin and at least one transparentizer in amounts sufficient to have the imaging layer exhibit a T.sub.g in the range of from about -15 to about 50.degree. C.
摘要翻译： 提供了一种用于制造高架投影用电子照相图像的透明记录纸。 记录片材包括透明聚合物基底和成像层。 成像层包括至少一种树脂和至少一种透明化剂，其量足以使成像层的Tg在约-15至约50℃的范围内。
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公开(公告)号：US07985361B2
公开(公告)日：2011-07-26
申请号：US12124271
申请日：2008-05-21
IPC分类号： D01F6/12
CPC分类号： D01F6/12 , C08L1/00 , C08L27/18 , C08L29/14 , C08L71/02 , C08L2205/03 , C08L2205/16 , D01F6/48 , Y10T428/3154 , C08L2666/04 , C08L2666/02
摘要： 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.
摘要翻译： 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。
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7.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
IPC分类号： B05D3/02
CPC分类号： C08L27/18 , C08K3/24 , C08L1/08 , C08L33/02 , C08L33/14 , C08L79/08 , C09D127/18 , C08L2666/26 , C08L2666/04 , C08L2666/20
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07390448B2
公开(公告)日：2008-06-24
申请号：US11494893
申请日：2006-07-28
IPC分类号： D01F6/12
CPC分类号： D01F6/12 , C08L1/00 , C08L27/18 , C08L29/14 , C08L71/02 , C08L2205/03 , C08L2205/16 , D01F6/48 , Y10T428/3154 , C08L2666/04 , C08L2666/02
摘要： 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.
摘要翻译： 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。
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公开(公告)号：USD527009S1
公开(公告)日：2006-08-22
申请号：US29215009
申请日：2004-10-14
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公开(公告)号：US06956078B2
公开(公告)日：2005-10-18
申请号：US10099368
申请日：2002-03-13
申请人： Robert John Cavanaugh , Clay Woodward Jones , Kazuo Konabe , Daniel N. Levy , Philippe Andre Fernand Thomas , Theodore A. Treat
发明人： Robert John Cavanaugh , Clay Woodward Jones , Kazuo Konabe , Daniel N. Levy , Philippe Andre Fernand Thomas , Theodore A. Treat
IPC分类号： B32B15/082 , B32B27/30 , C08F259/08 , C08K5/06 , C08L27/18 , C08L51/00 , C08L51/06 , C08L71/02 , C09D7/12 , C09D127/18 , C09D151/00 , C09D171/02 , C23C26/00 , D06M15/256 , B32B27/28
CPC分类号： C09D127/18 , C08F259/08 , C08K5/06 , C08L27/18 , C08L51/003 , C08L71/02 , C08L2205/02 , C09D151/003 , Y10T428/3154 , Y10T428/31544 , C08L2666/02
摘要： An aqueous dispersion composition of about 30 to about 70 weight % non-melt-processible fluoropolymer particles having a standard specific gravity (SSG) of less than 2.225 and about 2 to about 11 weight % surfactant based on the weight of said fluoropolymer comprising a compound or mixture of compounds of the formula: R(OCH2CH2)nOH wherein R is a branched alkyl, branched alkenyl, cycloalkyl, or cycloalkenyl hydrocarbon group having 8-18 carbon atoms and n is an average value of 5 to 18. The fluoropolymer particles of the dispersion comprise a core of high molecular weight polytetrafluoroethylene and a shell of lower molecular weight polytetrafluoroethylene or modified polytetrafluoroethylene. Preferably, the aqueous dispersion composition comprises about 45 to about 65 weight % non-melt-processible fluoropolymer particles.
摘要翻译： 基于所述含氟聚合物的重量，含有约30至约70重量％的不可熔融加工的含氟聚合物颗粒的标准比重（SSG）小于2.225和约2至约11重量％的表面活性剂的水分散体组合物， 或下式的化合物的混合物：<？in-line-formula description =“In-line Formulas”end =“lead”？> R（OCH 2 CH 2 CH 2） ）其中R是具有8个碳原子的支链烷基，支链烯基，环烷基或环烯基烃基，其中R是支链烷基，支链烯基，环烷基或具有8个 -18个碳原子，n为5-18的平均值。该分散体的含氟聚合物颗粒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。 优选地，水分散体组合物包含约45至约65重量％的不可熔融加工的含氟聚合物颗粒。
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