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公开(公告)号：US20110175298A1
公开(公告)日：2011-07-21
申请号：US13047863
申请日：2011-03-15
IPC分类号： F16J15/10
CPC分类号： F16J15/102 , B29C48/08 , B29C48/475 , B29K2027/18 , B29L2031/265 , B32B3/26 , B32B7/12 , B32B27/08 , B32B27/205 , B32B27/322 , B32B2307/50 , B32B2307/54 , B32B2307/546 , B32B2307/548 , B32B2307/552 , B32B2307/714 , B32B2307/72 , B32B2307/7242 , B32B2307/732 , B32B2581/00 , F16J15/104 , F16J15/3284 , F16L23/22 , Y10T428/215 , Y10T428/249978 , Y10T428/269
摘要： Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between .025 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.
摘要翻译： 改进的膨胀PTFE材料和由其制成的改进的垫圈材料，垫圈能够形成具有比现有的PTFE垫圈可能的更大的螺栓载荷保持力的密封。 本发明的膨胀PTFE膜可以被定制以在至少25,000psi的至少一个方向上表现出基体拉伸强度，在两个正交方向上的基体拉伸强度比在0.025和4之间，取向指数为50°或 较小，密度为2.0g / cc以下。 改进的垫圈表现出改善的机械性能，例如高螺栓载荷保持力，低蠕变性，高拉伸强度，低密封应力和高结晶度指数。
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公开(公告)号：US08158235B2
公开(公告)日：2012-04-17
申请号：US11868999
申请日：2007-10-09
IPC分类号： B32B3/22
CPC分类号： F16J15/102 , B29C47/0021 , B29C47/54 , B29K2027/18 , B29L2031/265 , B32B3/26 , B32B7/12 , B32B27/08 , B32B27/205 , B32B27/322 , B32B2307/50 , B32B2307/54 , B32B2307/546 , B32B2307/548 , B32B2307/552 , B32B2307/714 , B32B2307/72 , B32B2307/7242 , B32B2307/732 , B32B2581/00 , F16J15/104 , F16J15/3284 , F16L23/22 , Y10T428/215 , Y10T428/249978 , Y10T428/269
摘要： Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.
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公开(公告)号：US20100009180A1
公开(公告)日：2010-01-14
申请号：US12564115
申请日：2009-09-22
CPC分类号： F16J15/102 , B29C48/08 , B29C48/475 , B29K2027/18 , B29L2031/265 , B32B3/26 , B32B7/12 , B32B27/08 , B32B27/205 , B32B27/322 , B32B2307/50 , B32B2307/54 , B32B2307/546 , B32B2307/548 , B32B2307/552 , B32B2307/714 , B32B2307/72 , B32B2307/7242 , B32B2307/732 , B32B2581/00 , F16J15/104 , F16J15/3284 , F16L23/22 , Y10T428/215 , Y10T428/249978 , Y10T428/269
摘要： Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.025 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.
摘要翻译： 改进的膨胀PTFE材料和由其制成的改进的垫圈材料，垫圈能够形成具有比现有的PTFE垫圈可能的更大的螺栓载荷保持力的密封。 本发明的膨胀PTFE膜可以被调整为在至少25,000psi的至少一个方向上表现出基体拉伸强度，在两个正交方向上的基体拉伸强度比在0.025和4之间，取向指数为50°或更小 ，密度为2.0g / cc以下。 改进的垫圈表现出改善的机械性能，例如高螺栓载荷保持力，低蠕变性，高拉伸强度，低密封应力和高结晶度指数。
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公开(公告)号：US08231957B2
公开(公告)日：2012-07-31
申请号：US11868983
申请日：2007-10-09
IPC分类号： B32B3/22
CPC分类号： F16J15/102 , B29C47/0021 , B29C47/54 , B29K2027/18 , B29L2031/265 , B32B3/26 , B32B7/12 , B32B27/08 , B32B27/205 , B32B27/322 , B32B2307/50 , B32B2307/54 , B32B2307/546 , B32B2307/548 , B32B2307/552 , B32B2307/714 , B32B2307/72 , B32B2307/7242 , B32B2307/732 , B32B2581/00 , F16J15/104 , F16J15/3284 , F16L23/22 , Y10T428/215 , Y10T428/249978 , Y10T428/269
摘要： Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.
摘要翻译： 改进的膨胀PTFE材料和由其制成的改进的垫圈材料，垫圈能够形成具有比现有的PTFE垫圈可能的更大的螺栓载荷保持力的密封。 本发明的膨胀PTFE膜可以被定制以在至少25,000psi的至少一个方向上表现出基质拉伸强度，在两个正交方向上的基体拉伸强度比在0.25和4之间，取向指数为50°或更小 ，密度为2.0g / cc以下。 改进的垫圈表现出改善的机械性能，例如高螺栓载荷保持力，低蠕变性，高拉伸强度，低密封应力和高结晶度指数。
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公开(公告)号：US07829171B2
公开(公告)日：2010-11-09
申请号：US11868991
申请日：2007-10-09
IPC分类号： B32B3/22
CPC分类号： F16J15/102 , B29C47/0021 , B29C47/54 , B29K2027/18 , B29L2031/265 , B32B3/26 , B32B7/12 , B32B27/08 , B32B27/205 , B32B27/322 , B32B2307/50 , B32B2307/54 , B32B2307/546 , B32B2307/548 , B32B2307/552 , B32B2307/714 , B32B2307/72 , B32B2307/7242 , B32B2307/732 , B32B2581/00 , F16J15/104 , F16J15/3284 , F16L23/22 , Y10T428/215 , Y10T428/249978 , Y10T428/269
摘要： Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.
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公开(公告)号：US07829170B1
公开(公告)日：2010-11-09
申请号：US11059849
申请日：2005-02-16
IPC分类号： B32B3/22
CPC分类号： F16J15/102 , B29C47/0021 , B29C47/54 , B29K2027/18 , B29L2031/265 , B32B3/26 , B32B7/12 , B32B27/08 , B32B27/205 , B32B27/322 , B32B2307/50 , B32B2307/54 , B32B2307/546 , B32B2307/548 , B32B2307/552 , B32B2307/714 , B32B2307/72 , B32B2307/7242 , B32B2307/732 , B32B2581/00 , F16J15/104 , F16J15/3284 , F16L23/22 , Y10T428/215 , Y10T428/249978 , Y10T428/269
摘要： Improved expanded PTFE materials and improved gasket materials made therefrom, the gaskets being capable of forming a seal with greater bolt load retention than is possible with existing PTFE gaskets. The expanded PTFE membranes of the invention can be tailored to exhibit a matrix tensile strength in at least one direction of at least 25,000 psi, a matrix tensile strength ratio in two orthogonal directions of between 0.25 and 4, an orientation index of 50° or less, and a density of 2.0 g/cc or less. The improved gaskets exhibit improved mechanical properties such as high bolt load retention, low creep, high tensile strength, low stress to seal and high crystallinity index.
摘要翻译： 改进的膨胀PTFE材料和由其制成的改进的垫圈材料，垫圈能够形成具有比现有的PTFE垫圈可能的更大的螺栓载荷保持力的密封。 本发明的膨胀PTFE膜可以被定制以在至少25,000psi的至少一个方向上表现出基质拉伸强度，在两个正交方向上的基体拉伸强度比在0.25和4之间，取向指数为50°或更小 ，密度为2.0g / cc以下。 改进的垫圈表现出改善的机械性能，例如高螺栓载荷保持力，低蠕变性，高拉伸强度，低密封应力和高结晶度指数。
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公开(公告)号：US06485809B1
公开(公告)日：2002-11-26
申请号：US09372122
申请日：1999-08-11
申请人： Raymond Bryant Minor , Kevin Edward Dove , Ronald G. Egres, Jr. , Alexander Riedl , Hirokazu Hisano , David John Mills
发明人： Raymond Bryant Minor , Kevin Edward Dove , Ronald G. Egres, Jr. , Alexander Riedl , Hirokazu Hisano , David John Mills
IPC分类号： B32B302
CPC分类号： F16J15/102 , F16J15/104 , Y10T428/21 , Y10T428/215 , Y10T428/218 , Y10T428/219 , Y10T428/23 , Y10T428/233 , Y10T428/239 , Y10T428/249981 , Y10T428/3154 , Y10T428/31544
摘要： A multilayer, unitary gasket including at least one inner layer of expanded PTFE disposed between a first substantially air impermeable outer layer and a second substantially air impermeable outer layer, and a substantially air impermeable region bridging the first and second substantially air impermeable layers. The inventive gasket forms a substantially air impermeable seal when compressed at low stress.
摘要翻译： 多层整体垫片，包括设置在第一基本上不透气的外层和第二基本上不透气的外层之间的至少一个膨胀PTFE的内层，以及桥接第一和第二基本上不透气的层的基本上不透气的区域。 当在低应力下压缩时，本发明的垫圈形成基本上不透气的密封件。
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