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    • 102. 发明申请
    • FOAM MATERIALS FOR INSULATION, DERIVED FROM HIGH INTERNAL PHASE EMULSIONS
    • 用于绝缘的泡沫材料,由高内相乳液衍生
    • WO1996040823A1
    • 1996-12-19
    • PCT/US1996010168
    • 1996-06-03
    • THE PROCTER & GAMBLE COMPANY
    • THE PROCTER & GAMBLE COMPANYDESMARAIS, Thomas, AllenDYER, John, Collins
    • C08J09/28
    • B32B5/18B32B2266/06B32B2307/304B32B2307/73C08F257/02C08F265/04C08F265/06C08J9/283C08J2325/08Y10T428/249953Y10T428/249978C08F212/36C08F2/22
    • The present invention relates to compressable polymeric foam materials useful as insulation. These polymeric foams are prepared by polymerization of certain water-in-oil emulsions having a relatively high ratio of water phase to oil phase, commonly known as "HIPEs". The polymeric foam materials comprise a generally hydrophobic, flexible or semi-flexible, non-ionic polymeric foam structure of interconnected open-cells. The foam structures have: (a) a specific surface area per foam volume of at least about 0.01 m /cc; (b) an expanded density of less than about 0.05 g/cc; and (c) a ratio of expanded to compressed thickness of at least about 3:1; wherein when the foam is compressed to 33 % of its original expanded thickness and is thereafter maintained without artificial restraint on its surface, said foam will reexpand by no more than 50 % after 21 days at ambient temperature (22 DEG C). In a preferred embodiment, the foams of the present invention, when heated to their Tg or higher, will reexpand to 90 % of their original thickness within about 1 day or less. The invention also relates to a process for making the compressible polymeric foam material comprising polymerizing a water-in-oil emulsion having a volume to weight ratio of water phase to oil phase in the range of from about 20:1 to about 250:1.
    • 本发明涉及可用作绝缘材料的可压缩聚合物泡沫材料。 这些聚合物泡沫通过聚合具有相对较高的水相与油相的比例的通常称为“HIPEs”的某些油包水乳液来制备。 聚合物泡沫材料包括相互连接的开孔的通常疏水性,柔性或半柔性的非离子聚合物泡沫结构。 泡沫结构具有:(a)每泡沫体积的比表面积至少约0.01m 2 / cc; (b)发泡密度小于约0.05g / cc; 和(c)膨胀压缩厚度的比至少为3:1; 其中当泡沫被压缩到其原始膨胀厚度的33%,然后在其表面上维持没有人造约束时,在环境温度(22℃)下21天后,所述泡沫将​​再膨胀不超过50%。 在优选的实施方案中,当加热至Tg或更高时,本发明的泡沫体将在约1天或更短时间内再膨胀至其原始厚度的90%。 本发明还涉及一种制备可压缩聚合物泡沫材料的方法,其包括聚合油相与油相的体积与重量比在约20:1至约250:1范围内的油包水乳液。
    • 105. 发明申请
    • IMPACT ABSORBING COMPOSITES AND THEIR PRODUCTION
    • 影响吸收复合材料及其生产
    • WO1989002363A1
    • 1989-03-23
    • PCT/US1988003249
    • 1988-09-20
    • DONZIS, Byron, A.
    • B32B01/00
    • B32B3/26A41D31/005B32B5/18B32B7/08B32B27/065B32B2266/0278B32B2266/06B32B2305/022B32B2307/56B32B2375/00B60R21/045F16F1/37
    • An improved composite for absorbing and dispersing impacting forces is disclosed. The composite (10) includes a flexible plastic enclosure (12, 14) defining an internal cavity (15). The flexible enclosure is generally impermeable to air and capable of having its internal pressure changed. The composite further includes a foam core (11) filling the cavity and retained within the cavity and adhered on substantially all of its external surface to the internal surface of the cavity. The cavity can be pressurized by valve (16) for higher impact absorbance. Methods for fabricating the composites are disclosed, as well. These methods include forming the outer enclosure by applying a solution/suspension of the prepolymer of controlled solids content to the core and also can include the step of preheating the core prior to coating it.
    • 公开了用于吸收和分散冲击力的改进的复合材料。 复合材料(10)包括限定内腔(15)的柔性塑料外壳(12,14)。 柔性外壳通常不透气并能够改变内部压力。 复合材料还包括填充空腔的泡沫芯(11)并保持在空腔内并且基本上将其外表面附着到空腔的内表面。 腔可以通过阀(16)加压,以获得较高的冲击吸光度。 还公开了制造复合材料的方法。 这些方法包括通过将控制的固体含量的预聚物的溶液/悬浮液施加到芯上来形成外壳,并且还可以包括在涂覆之前预热芯的步骤。