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    • 57. 发明授权
    • Linings for pipelines and passageways
    • 管道和通道衬
    • US5937910A
    • 1999-08-17
    • US557067
    • 1995-11-13
    • Brian Burnett Chandler
    • Brian Burnett Chandler
    • F16L55/16B01J2/18B01J13/02B29C35/02B29C35/08B29C63/00B29C63/36B29C67/24B29C70/58B29K101/10B29L23/00C08K7/16C08L101/00F16L55/165
    • B29C70/58B01J13/02B01J2/18B29C35/08B29C63/0069B29C67/247F16L55/1656B29C2035/0811B29C35/0261B29C63/00B29K2105/0014B29K2105/16B29L2023/006
    • The invention provides that flexible lining tubes for application to underground pipelines and passageways comprise absorbent material which is impregnated with curable synthetic resin which can be cured when the tube is placed on the pipeline or passageway surface so that a rigid pipe within the pipe is formed. The curing of the resin is controlled by filling the curing agent into micropores or microporous particles which are dispersed throughout the resin. The curing agent is only released when the resin is subjected to applied energy such as sonic and/or heat energy. A preferred method is to include CURIE temperature magnetic particles in the resin and to excite (and thus heat) the magnetic particles by applying an alternating high frequency magnetic field. The heat from the magnetic particles opens the microporous particles and causes desorbence of the curing agent and then cure of the resin. The invention also provides that the curing agent is absorbed into the absorbent layer in the first place using sonic energy.
    • PCT No.PCT / GB94 / 01453 Sec。 371日期:1995年11月13日 102(e)1995年11月13日PCT PCT 1994年7月5日PCT公布。 出版物WO95 / 01861 日期1995年1月19日本发明提供用于地下管线和通道的挠性衬管包括浸渍有可固化合成树脂的吸收材料,当管被放置在管道或通道表面上时,可固化,使得刚性管内 管道形成。 通过将固化剂填充到分散在树脂中的微孔或微孔颗粒来控制树脂的固化。 只有当树脂受到诸如声波和/或热能的施加能量时,固化剂才被释放。 优选的方法是将CURIE温度磁性颗粒包括在树脂中并通过施加交替的高频磁场来激发(并因此加热)磁性颗粒。 来自磁性颗粒的热量打开微孔颗粒并导致固化剂的脱附,然后固化树脂。 本发明还提供了使用声能首先将固化剂吸收到吸收层中。
    • 60. 发明授权
    • Syntactic foam core incorporating honeycomb structure for composites
    • 含复合材料蜂窝结构的合成泡沫芯
    • US5773121A
    • 1998-06-30
    • US769792
    • 1996-12-19
    • Charles L. MeteerThomas E. Philipps
    • Charles L. MeteerThomas E. Philipps
    • B29C70/08B29C70/58B29C70/66B29D99/00B32B5/18B32B27/20B32B3/12B32B3/26B32B5/16B32B18/00
    • B29D99/001B29C70/086B29C70/58B29C70/66B32B27/20B32B5/18B29K2105/165Y10S493/966Y10T156/1003Y10T428/24157Y10T428/24165Y10T428/249972Y10T428/249974Y10T428/249986Y10T428/2996
    • A syntactic structural foam product in flat sheet form or curved three-dimensional form adaptable to such uses as a light weight structural core for composite laminates, is made of a mixture of hollow ceramic microspheres and dry resin powder, of either thermosetting or a high-temperature thermoplastic resin, distributed in the interstices of the mass of microspheres for integration of the mixture into desired form upon heating and cooling. The dry resin powder in another embodiment of the invention includes unexpanded expandable powder which will expand into microballoons in the confined spaces in which they reside and effect a bonding relation with surrounding particles upon supply of heat to the mixture. The foam product is produced by thoroughly intermixing and depositing the mixture as a layer over a surface having a release agent thereover within a dimension defined region. Heat is then supplied, with or without pressure, to the layer at a temperature and for a time period sufficient to effect a melting or softening of the resin powder. Thereafter the resin is cooled to a hardened condition to integrate the mixture into the product desired after which the product is withdrawn from the forming zone. The mixture in layer form can be reinforced with honeycomb structures and/or with elements such as glass or carbon fibers selectively included in the mixture for predeterminable physical properties.
    • 一种平板形式的复合结构泡沫产品或适用于复合层压材料的轻质结构芯的这种用途的弯曲三维形状由中空陶瓷微球和干燥树脂粉末的混合物制成, 分布在微球体的间隙中,用于在加热和冷却时将混合物整合成所需形式。 在本发明的另一个实施方案中的干燥树脂粉末包括未膨胀的可膨胀粉末,其将在它们所驻留的密闭空间中膨胀成微球,并在向混合物供应热量时与周围颗粒发生粘合关系。 泡沫产品通过将混合物作为层在其尺寸限定区域内具有脱模剂的表面上充分混合和沉积而制备。 然后在有或没有压力的情况下,在足以使树脂粉末熔化或软化的温度和时间内将热量提供给该层。 此后,将树脂冷却至硬化状态,以将混合物整合到所需的产品中,然后将产物从成形区取出。 层状混合物可以用蜂窝结构和/或选择性地包含在混合物中的元素例如玻璃或碳纤维来增强以获得预定的物理性能。