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    Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
    8.
    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：US5550167A

    公开(公告)日：1996-08-27

    申请号：US520793

    申请日：1995-08-30

    申请人： Thomas A. DesMarais

    发明人： Thomas A. DesMarais

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

    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。

    Recirculating a portion of high internal phase emulsions prepared in a continuous process
    10.
    发明授权
    Recirculating a portion of high internal phase emulsions prepared in a continuous process 失效
    循环连续过程中制备的一部分高内相乳液

    公开(公告)号：US5827909A

    公开(公告)日：1998-10-27

    申请号：US716510

    申请日：1996-09-17

    申请人： Thomas A. DesMarais

    发明人： Thomas A. DesMarais

    IPC分类号： B01F3/08 ,  B01F5/06 ,  B01F5/10 ,  B01F7/00 ,  B01F13/10 ,  B01J13/00 ,  B01J20/26 ,  C08F2/32 ,  C08J9/26 ,  C08J9/28

    CPC分类号： B01F3/0811 ,  B01F3/0807 ,  B01F3/0853 ,  B01F5/102 ,  B01F13/1025 ,  B01F2003/0826 ,  B01F2003/0842 ,  B01F5/0602 ,  B01F7/00 ,  Y10S516/929 ,  Y10S516/931

    摘要： An improvement in a continuous process for making high internal phase emulsions that are typically polymerized to provide microporous, open-celled polymeric foam materials capable of absorbing aqueous fluids, especially aqueous body fluids such as urine. The improvement involves recirculating a portion (about 50% or less) of the emulsion withdrawn from the dynamic mixing zone of this continuous process. This increases the uniformity of the emulsion ultimately obtained from this continuous process in terms of having the water droplets homogeneously dispersed in the oil phase. This also improves the stability of the HIPE and expands the temperature range for pouring and curing this HIPE during subsequent emulsion polymerization. The improvement also eliminates the need for a static mixer outside the dynamic mixing zone, and allows for processing where relatively low pressure drops are required across the mixing zone.

    摘要翻译： 用于制备高内相乳液的连续方法的改进，其通常被聚合以提供能够吸收含水流体，特别是尿液体液等微孔，开孔聚合物泡沫材料。 该改进涉及将从该连续过程的动态混合区抽出的乳液的一部分（约50％或更少）再循环。 这就增加了从这个连续过程中最终获得的乳液的均匀性，就是使水滴均匀地分散在油相中。 这也提高了HIPE的稳定性，并扩大了在随后的乳液聚合过程中倾倒和固化该HIPE的温度范围。 该改进也消除了在动态混合区之外的静态混合器的需要，并且允许在混合区域需要相对低的压降的处理。