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    High suction polymeric foam materials
    5.
    发明授权
    High suction polymeric foam materials 有权

    公开(公告)号：US6107356A

    公开(公告)日：2000-08-22

    申请号：US378787

    申请日：1999-08-23

    申请人： Thomas Allen DesMarais

    发明人： Thomas Allen DesMarais

    IPC分类号： A61L15/42 ,  C08F220/18 ,  C08K5/103 ,  C08J9/26

    CPC分类号： C08F220/18 ,  A61L15/425 ,  C08K5/103 ,  C08J2201/028 ,  C08J2205/05

    摘要： Disclosed are polymeric foam structures suitable for absorbing and storing body fluids such as urine, menses and the like. These liquid storage structures are high suction collapsible polymeric foam materials. The collapsed foams, upon contact with aqueous fluids, can absorb and expand these fluids even when opposed by significant hydrostatic pressures. These absorbent polymeric foams comprise interconnected open-cells. In one aspect, the foams can absorb at least about 25 g/g against a hydrostatic head pressure of 50 cm. In another aspect, the foams of the present invention will have a vertical hang sorption height at 90% of at least about 60 cm.

    Heterogeneous foam materials
    6.
    发明授权
    Heterogeneous foam materials 失效
    不均匀泡沫材料

    公开(公告)号：US5869171A

    公开(公告)日：1999-02-09

    申请号：US87169

    申请日：1998-05-29

    申请人： Thomas Michael Shiveley ,  Thomas Allen DesMarais ,  John Collins Dyer ,  Keith Joseph Stone

    发明人： Thomas Michael Shiveley ,  Thomas Allen DesMarais ,  John Collins Dyer ,  Keith Joseph Stone

    IPC分类号： A41D13/02 ,  A61F13/15 ,  A61F13/49 ,  A61F13/53 ,  A61L15/42 ,  B29C67/20 ,  B29K105/04 ,  C08F2/32 ,  C08J9/28 ,  B32B3/26

    CPC分类号： A61F13/53 ,  A61F13/532 ,  A61F13/534 ,  A61L15/425 ,  C08F2/32 ,  C08J9/28 ,  C08J2201/028 ,  Y10T428/249953

    摘要： The present invention relates to a HIPE-derived heterogeneous polymeric foam structure of interconnected open-cells, wherein the foam structure has at least two distinct regions. Such heterogeneous foams have various applications, such as energy and fluid absorption, insulation, and filtration.The invention further relates to a heterogeneous absorbent polymeric foam that, upon contact with aqueous fluids (in particular body fluids such as urine and blood), can acquire, distribute, and store these fluids.The foams of the invention have at least two distinct regions having different density, polymer composition, surface properties, and/or microcellular morphology.The invention further relates to a process for obtaining the heterogeneous foams by polymerizing a high internal phase water-in-oil emulsion, or HIPE. In one aspect, the process utilizes at least two distinct HIPEs, with each emulsion having a relatively small amount of an oil phase and a relatively greater amount of a water phase.

    摘要翻译： 本发明涉及相互连接的开孔的HIPE衍生的多相聚合物泡沫结构，其中泡沫结构具有至少两个不同的区域。 这种不均匀的泡沫具有各种应用，例如能量和流体吸收，绝缘和过滤。 本发明还涉及一种非均相吸收聚合物泡沫，其在与含水流体（特别是体液如尿液和血液）接触时可以获得，分配和储存这些流体。 本发明的泡沫体具有至少两个具有不同密度，聚合物组成，表面性质和/或微孔形态的不同区域。 本发明还涉及通过聚合高内相油包水乳液或HIPE获得异质泡沫的方法。 在一个方面，该方法利用至少两种不同的HIPE，每种乳液具有相对少量的油相和相对较大量的水相。

    Foam materials for insulation, derived from high internal phase emulsions
    8.
    发明授权
    Foam materials for insulation, derived from high internal phase emulsions 失效

    公开(公告)号：US5753359A

    公开(公告)日：1998-05-19

    申请号：US680400

    申请日：1996-07-15

    申请人： John Collins Dyer ,  Thomas Allen DesMarais

    发明人： John Collins Dyer ,  Thomas Allen DesMarais

    IPC分类号： B32B5/18 ,  C08F2/32 ,  C08F212/00 ,  C08F220/12 ,  C08F257/02 ,  C08F265/04 ,  C08F265/06 ,  C08J9/28 ,  B32B3/26

    CPC分类号： C08J9/283 ,  B32B5/18 ,  C08F257/02 ,  C08F265/04 ,  C08F265/06 ,  C08J2325/08 ,  Y10T428/249953 ,  Y10T428/249978

    摘要： 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, nonionic 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.sup.2 /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.degree. 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.

    Use of foam materials derived from high internal phase emulsions for insulation
    9.
    发明授权
    Use of foam materials derived from high internal phase emulsions for insulation 失效
    使用衍生自高内相乳液的泡沫材料进行绝缘

    公开(公告)号：US5728743A

    公开(公告)日：1998-03-17

    申请号：US700964

    申请日：1996-08-21

    申请人： John Collins Dyer ,  Thomas Allen DesMarais

    发明人： John Collins Dyer ,  Thomas Allen DesMarais

    IPC分类号： C08F2/32 ,  C08F212/00 ,  C08F220/12 ,  C08J9/28

    CPC分类号： C08J9/283 ,  C08F2/32 ,  C08J2325/08

    摘要： The invention relates to the use of polymeric foam materials for 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 in the art as high internal phase emulstions, or "HIPEs." The HIPE-derived foam materials used in the present invention comprise a generally hydrophobic, flexible, semi-flexible, or rigid nonionic polymeric foam structure of interconnected open-cells. These foam structures have: A) a specific surface area per foam volume of at least about 0.01 m.sup.2 /cc; B) a density of less than about 0.05 g/cc; and C) a glass transition temperature (Tg) of between about -20.degree. and 90.degree. C. The foams can be used as thermal, acoustic, and/or mechanical insulation materials. In a preferred embodiment, the foams used can be prepared, packaged, and shipped in a compressed, high density state and will "spring back" upon activation (e.g. heat) to the original density of the foam.

    摘要翻译： 本发明涉及聚合物泡沫材料用于绝缘的用途。 这些聚合物泡沫通过聚合具有相对较高的水相与油相之比的油包水乳液来制备，本领域通常称为高内相乳液或“HIPE”。 用于本发明的HIPE衍生的泡沫材料包括互连的开孔的一般疏水性，柔性的，半柔性的或刚性的非离子聚合物泡沫结构。 这些泡沫结构具有：A）每泡沫体积的比表面积至少约0.01m 2 / cc; B）密度小于约0.05g / cc; 和C）玻璃化转变温度（Tg）在约-20°至90℃之间。泡沫可用作热，声和/或机械绝缘材料。 在优选的实施方案中，所使用的泡沫可以被制备，包装并以压缩的高密度状态运输，并且在激活（例如加热）时将“弹回”到泡沫的原始密度。

    Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
    10.
    发明授权
    Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids 失效
    由用于获取含水流体的高内相乳液制成的吸收泡沫

    公开(公告)号：US5692939A

    公开(公告)日：1997-12-02

    申请号：US688700

    申请日：1996-07-30

    申请人： Thomas Allen DesMarais

    发明人： Thomas Allen DesMarais

    IPC分类号： A61L15/00 ,  A61L15/42 ,  C08F2/32 ,  C08F212/08 ,  C08F220/10 ,  C08J9/28 ,  B32B3/26 ,  A61F13/15

    CPC分类号： A61L15/425 ,  Y10T428/249975 ,  Y10T428/249979 ,  Y10T428/24998 ,  Y10T442/651

    摘要： Absorbent foam materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary absorption pressures and capacity-per-weight properties that allow them to acquire fluid, with or without the aid of gravity. These absorbent foams also give up this fluid efficiently to higher absorption pressure storage materials, including foam-based absorbent fluid storage components, without collapsing. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs).

    摘要翻译： 吸收泡沫材料，能够获取和分配水性流体，特别是排出的体液，如尿液。 这些吸收性泡沫结合了相对较高的毛细管吸收压力和每重量容量的性质，允许它们在重力的帮助下或不借助重力的情况下获得流体。 这些吸收性泡沫体也可以有效地将这种流体放弃到较高的吸收压力储存材料，包括基于泡沫的吸收剂流体储存组分，而不会塌陷。 这些吸收泡沫体通过聚合高内相乳液（HIPE）制成。