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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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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：US20080221250A1
公开(公告)日：2008-09-11
申请号：US12124271
申请日：2008-05-21
IPC分类号： C08K5/05
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：US20070029697A1
公开(公告)日：2007-02-08
申请号：US11494893
申请日：2006-07-28
申请人： Devin Flowers , Clay Jones , Robert Cavanaugh
发明人： Devin Flowers , Clay Jones , Robert Cavanaugh
IPC分类号： C09D5/02
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： 分散纺丝不熔融加工的含氟聚合物纤维的方法，其中形成不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性分散体和基质聚合物的水溶液的混合物。 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：US20070207273A1
公开(公告)日：2007-09-06
申请号：US11709531
申请日：2007-02-21
CPC分类号： B32B17/04 , C03C25/1095 , C09D127/18 , Y10T428/25 , Y10T428/2982 , Y10T428/2991 , Y10T428/3154
摘要： A process for making a fluoropolymer coated substrate comprising: applying an aqueous fluoropolymer dispersion coating composition comprising an aqueous medium and fluoropolymer particles with a fluorosurfactant content of less than about 300 ppm to a substrate to form a wet coating on the substrate, the aqueous fluoropolymer coating composition comprising added water soluble salt; and drying the wet coating to form the fluoropolymer coated substrate by applying high frequency electromagnetic radiation to the wet coating, the added water soluble salt being effective to decrease the time required to dry the wet coating on the substrate by at least about 5% compared to an otherwise identical coating composition without the added water soluble salt.
摘要翻译： 一种制备含氟聚合物涂覆的基材的方法，包括：将含氟介质的含氟聚合物分散体涂料组合物和含氟表面活性剂含量小于约300ppm的含氟聚合物颗粒施加到基材上以在基材上形成湿涂层，含氟聚合物涂层 组合物包含加入的水溶性盐; 并通过对湿涂层施加高频电磁辐射来干燥湿涂层以形成含氟聚合物涂覆的基材，所加的水溶性盐有效地将基材上的湿涂层干燥所需的时间减少至少约5％ 没有添加水溶性盐的其他相同的涂料组合物。
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