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    • 8. 发明授权
    • Skived foam article containing energy absorbing phase change material
    • 含有能量吸收相变材料的滑动泡沫制品
    • US5955188A
    • 1999-09-21
    • US165583
    • 1998-10-02
    • Robert J. Pushaw
    • Robert J. Pushaw
    • B32B5/18D06M23/04D06M23/12B32B5/16
    • B32B5/18D06M23/04D06M23/12C08J2421/00Y10T428/249994Y10T428/249995Y10T428/25Y10T428/254Y10T442/469
    • A composition for saturation of preformed, previously cured foam substrates having an at least partially open cell configuration, includes a polymer binder in which microspheres containing a phase change material are dispersed. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. A preferred cured foam substrate is a skived polyurethane or polyether foam of from 20 to 1000 mils in thickness, preferably 20 to 200 mils in thickness, having up to 6 ounces per square yard or more of encapsulated phase change material embedded in a polymer binder. One method of applying the binder with dispersed encapsulated phase change materials is by applying a binder/microsphere dispersion to the upper surface of a previously cured foam sheet with, then drawing a vacuum from the underside of the cured foam sheet to permeate from 20% to 100% of the cured foam sheet with the binder/microsphere dispersion. The resulting product is then cured. An alternative method of applying the binder with embedded encapsulated phase change materials using knife over roll technique to an exposed surface of the skived foam is disclosed in which the most preferred viscosity of the uncured polymer binder is from 7,000 to 9,000 centipoise.
    • 用于饱和预先形成的,具有至少部分开放的电池构型的预先固化的泡沫基材的组合物包括其中分散有相变材料的微球的聚合物粘合剂。 优选的相变材料包括链烷烃。 微球可以被微胶囊化。 优选的固化泡沫基材是20至1000密耳厚度,优选20至200密耳厚度的具有高达6盎司/平方码或更多的嵌入聚合物粘合剂中的包封的相变材料的空心聚氨酯或聚醚泡沫。 用分散的包封的相变材料施加粘合剂的一种方法是通过将粘合剂/微球分散体施加到预先固化的泡沫板的上表面,然后从固化的泡沫板的下侧抽出真空从20%渗透到 100%固化的泡沫片材与粘合剂/微球分散体。 然后将所得产物固化。 公开了一种替代方法,其中将具有嵌入的包封的相变材料的粘合剂用刮刀技术施加到所述喷雾泡沫的暴露表面,其中未固化的聚合物粘合剂的最优选粘度为7,000至9,000厘泊。