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    Continuous process for polymerizing, curing and drying high internal phase emulsions
    13.
    发明授权
    Continuous process for polymerizing, curing and drying high internal phase emulsions 有权
    用于聚合，固化和干燥高内相乳液的连续方法

    公开(公告)号：US06299808B1

    公开(公告)日：2001-10-09

    申请号：US09586908

    申请日：2000-06-05

    Applicant: Steven W. Mork ,  Bruce A. Malone

    Inventor： Steven W. Mork ,  Bruce A. Malone

    IPC: B29D700

    CPC classification number: B29C43/22 ,  B29C44/30 ,  B29C67/202 ,  C08J9/28 ,  C08J2201/028 ,  C08J2201/0504

    Abstract: The invention comprises a fully continuous process for shaping a high internal phase emulsion (HIPE) with a polymerizable continuous phase into dry foam, comprising 1) providing a high internal phase emulsion (HIPE) comprising (a) at least 70 percent by volume of an eternal phase comprising one or more polymerizable monomer; (b) a surfactant in an amount effective to produce a high internal phase emulsion; and (c) an internal phase; 20 depositing the emulsion onto a lower moving support substrate; 3) leveling the emulsion to a desired thickness above the support substrate; 4) polymerizing the monomers by running the emulsion and the lower moving support substrate through a heating zone for a time sufficient to polymerize at least 75% of the monomer in the HIPE by the end of the heating zone; and 5) drying the polymerized HIPE in a drying zone for a time sufficient to produce a foam having greater than 50% of the internal phase removed.

    Abstract translation: 本发明包括用于将具有可聚合连续相成型为干泡沫的高内相乳液（HIPE）成型为完全连续的方法，其包括1）提供高内相乳液（HIPE），其包含（a）至少70体积％ 永久相包含一种或多种可聚合单体; （b）有效产生高内相乳液的表面活性剂; 和（c）内相; 20将乳液沉积到下移动的支撑基底上; 3）将乳液调平至支撑衬底上方所需的厚度; 4）通过使加热区域使乳液和下部移动的载体基材通过加热区域的末端使得至少75％的HIPE中的单体聚合足够的时间来聚合单体; 和5）在干燥区中干燥聚合的HIPE一段足以产生具有除去内相的50％以上的泡沫的时间。

    Process for making heterogeneous foam materials
    15.
    发明授权
    Process for making heterogeneous foam materials 失效
    制造异质泡沫材料的工艺

    公开(公告)号：US5856366A

    公开(公告)日：1999-01-05

    申请号：US934258

    申请日：1997-09-19

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

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

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

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

    Abstract: 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.

    Abstract translation: 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。

    Process to prepare low density porous crosslinked polymeric materials
    16.
    发明授权
    Process to prepare low density porous crosslinked polymeric materials 失效
    制备低密度多孔交联聚合物材料的方法

    公开(公告)号：US5362762A

    公开(公告)日：1994-11-08

    申请号：US226203

    申请日：1994-04-11

    Applicant: Sharon M. Beshouri

    Inventor： Sharon M. Beshouri

    IPC: C08F2/32 ,  C08J9/28

    CPC classification number: C08J9/283 ,  C08F2/32 ,  C08J2201/028 ,  C08J2201/0504

    Abstract: Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators, useful in preparing low density porous crosslinked polymeric foams, are obtained by using a surfactant system containing (a) one or more sorbitan fatty acid ester or saccharide fatty acid ester and (b) a glycerol monofatty acid ester. A higher water to oil ratio water-in-oil emulsions can be formed with the same formulation by using the glycerol monofatty acid ester cosurfactant.

    Abstract translation: 通过使用含有（a）一种或多种脱水山梨糖醇脂肪酸酯或糖的表面活性剂体系，可获得含有可聚合乙烯基单体，交联单体和引发剂的稳定的高内相油包水乳液，其可用于制备低密度多孔交联聚合物泡沫体 脂肪酸酯和（b）甘油单脂肪酸酯。 通过使用甘油单脂酸酯辅助表面活性剂，可以用相同的配方形成更高的油包水比例的油包水乳液。

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