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    • 6. 发明授权
    • Gasket manufacture
    • 垫片制造
    • US5570501A
    • 1996-11-05
    • US351277
    • 1994-12-07
    • Alan W. AtkinsonMelanie J. Walsh
    • Alan W. AtkinsonMelanie J. Walsh
    • F16J15/12
    • F16J15/122Y10T156/1039Y10T29/49982
    • An embossed sheet coated at least partially with expanded graphite and suitable for use as a gasket or as a component layer of a gasket is manufactured by positioning a planar metallic sheet between an upper embossing die and a lower embossing die with a layer of particles of expanded graphite between one of said dies and a surface of the sheet. One of the dies has a protuberance to emboss a ridge into the sheet while the other die has a recess to receive the ridge. The method also comprises pressing the dies together to cause the particles to coalesce and form a coating attached to the sheet while simultaneously embossing said ridge into the sheet.
    • PCT No.PCT / GB93 / 01480 Sec。 371日期1994年12月7日第 102(e)日期1994年12月7日PCT提交1993年7月14日PCT公布。 公开号WO94 / 03742 日期1994年2月17日至少部分地用膨胀石墨涂覆并适合用作垫圈或垫圈的组分层的压花片通过将平面金属片定位在上压纹模和下压纹模之间来制造, 在所述模具之一和片材的表面之间的膨胀石墨颗粒层。 模具中的一个具有将脊压印到片材中的突起,而另一个模具具有用于接收脊的凹部。 该方法还包括将模具压在一起以使颗粒聚结并形成附着到片材上的涂层,同时将所述脊部压印成片材。
    • 9. 发明授权
    • Gaskets
    • 垫圈
    • US06610771B1
    • 2003-08-26
    • US09424123
    • 2000-01-06
    • John R. HoyesAlan W. AtkinsonStephen P. BondAdam M. West
    • John R. HoyesAlan W. AtkinsonStephen P. BondAdam M. West
    • C08K334
    • C09K3/10
    • A gasket is described. The gasket comprises a sealing layer and a support layer. The sealing layer is formed from a resilient material which comprises a CEV component in a proportion of at least 25% w/w of the sealing layer. The CEV component is at least partially derived from dry CEV. A hydrolysis resistant polymer to improve the water resistance of the sealing layer is also provided in the proportion of less than 20% w/w of the sealing layer. Generally, the level of CEV falls within the range 25-80% w/w of the sealing layer. A method of producing a gasket is also described. The method involves applying a wet sealing layer dough to a support material, and drying the wet sealing layer dough on the support material. The solids content of the wet sealing layer dough prior to the drying step is in the range 30-80% w/w of the dough material.
    • 描述垫圈。 垫圈包括密封层和支撑层。 密封层由弹性材料形成,该弹性材料包括比例为密封层的至少25%w / w的CEV组分。 CEV组分至少部分来源于干CEV。 还提供了防水密封聚合物以提高密封层的耐水性,其比例小于密封层的20%w / w。 通常,CEV的水平落在密封层的25-80%w / w的范围内。 还描述了制造垫圈的方法。 该方法包括将湿密封层面团施加到支撑材料上,并将湿密封层面团干燥在支撑材料上。 在干燥步骤之前湿密封层面团的固体含量在面团材料的30-80%w / w的范围内。