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    多孔质体的制备方法及其用途
    13.
    发明公开
    多孔质体的制备方法及其用途 失效

    公开(公告)号：CN101541868A

    公开(公告)日：2009-09-23

    申请号：CN200880000595.3

    申请日：2008-03-24

    Applicant: 株式会社JMS

    Inventor： 栈敷俊信 ,  平井聪

    IPC: C08J9/28 ,  A61K9/00 ,  A61K47/34 ,  A61L27/00 ,  A61L31/00

    CPC classification number: C08J9/28 ,  A61L27/56 ,  C08J9/0061 ,  C08J2201/052 ,  C08J2367/04 ,  C08J2467/00

    Abstract: 本发明提供了通过多孔质化处理制备在所需区域中具有不同物性的多孔质体的方法，该方法不是用粘合剂等将预先多孔质化的2个以上部件粘合。配制含有聚合物和原料配制用溶剂的原料。作为前述原料，制备至少两种以上不同组成的原料。而且，通过将前述各原料冷冻为所需的形状，形成前述各原料的冷冻体。让所形成的冷冻体彼此接触，形成前述冷冻体的集合体，让前述集合体处于前述冷冻体开始融化的条件下，然后将前述集合体冷冻干燥。这样，可以获得具有不同物性的区域的多孔质体。这种多孔质体例如可以用作防粘连材料、细胞培养等的支架材料。

    POROUS POLYMER BLEND STRUCTURES
    16.
    发明申请
    POROUS POLYMER BLEND STRUCTURES 有权
    多孔聚合物混合结构

    公开(公告)号：US20090286894A1

    公开(公告)日：2009-11-19

    申请号：US12296177

    申请日：2007-04-05

    Applicant: Justin John Cooper-White ,  Yang Cao ,  Andrew Stewart Rowlands

    Inventor： Justin John Cooper-White ,  Yang Cao ,  Andrew Stewart Rowlands

    IPC: C08J9/00

    CPC classification number: C08J9/28 ,  C08J2201/052

    Abstract: A porous polymer blend, and a method of producing a porous polymer blend from at least two immiscible polymers. The at least two immiscible polymer being blended together and exhibiting the absence of complete phase separation. The method of producing a porous polymer blend comprising: forming a liquid composition comprising at least two immiscible polymers dissolved in a common solvent; subjecting the liquid composition to a reduction in temperature to cause at least two immiscible polymers to phase separate into a common polymer rich phase and a common polymer poor phase; solidifying the at least two immiscible polymers in the common polymer rich phase so as to avoid complete phase separation of the at least two immiscible polymers; and removing the common polymer pore phase to provide a blend of the at least two immiscible polymers having a porous morphology.

    Abstract translation: 多孔聚合物共混物，以及从至少两种不混溶聚合物制备多孔聚合物共混物的方法。 将至少两种不混溶的聚合物混合在一起并表现出不完全的相分离。 制备多孔聚合物共混物的方法，包括：形成液体组合物，其包含溶解在常见溶剂中的至少两种不混溶的聚合物; 使液体组合物经历温度降低，使至少两种不混溶的聚合物相分离成常见的富聚合物相和常见的聚合物不良相; 在常见的富聚合物相中固化至少两种不混溶的聚合物，以避免至少两种不混溶的聚合物的完全相分离; 并除去常见的聚合物孔相以提供具有多孔形态的至少两种不混溶聚合物的共混物。

    Hydrophilic porous material sterilizable with gamma-ray
    17.
    发明授权
    Hydrophilic porous material sterilizable with gamma-ray 失效
    亲水性多孔材料可用γ射线灭菌

    公开(公告)号：US5180492A

    公开(公告)日：1993-01-19

    申请号：US716287

    申请日：1991-06-17

    Applicant: Makoto Ohnishi ,  Kenichi Shimura

    Inventor： Makoto Ohnishi ,  Kenichi Shimura

    IPC: C08J7/18 ,  C08J9/28 ,  C08J9/40

    CPC classification number: C08J9/28 ,  C08J7/18 ,  C08J9/405 ,  C08J2201/03 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/12 ,  Y10T428/249979

    Abstract: A .gamma.-ray-sterilizable hydrophilic porous material has been found which includes a continuous layer made of a synthetic polymer compound forming a porous substrate and a hydrophilic and .gamma.-ray-resistant polymer supported on at least part of the surface of the porous substrate in an amount not less than 5% by weight, based on the porous substrate. The hydrophilic porous material has an average pore diameter in the range of 0.02 to 20 .mu.m, a porosity in the range of 10 to 90% and a wall thickness in the range of 10 .mu.m to 5.0 mm.

    Abstract translation: 已经发现了一种γ-射线消毒的亲水性多孔材料，其包括由形成多孔基材的合成高分子化合物制成的连续层，以及负载在多孔基材表面的至少部分表面上的亲水性和耐γ射线抗性聚合物 基于多孔基材的量不小于5重量％。 亲水性多孔质材料的平均孔径为0.02〜20μm，孔隙率为10〜90％，壁厚在10〜5.0mm的范围内。

    0.1 Micron rated polypropylene membrane and method for its preparation
    20.
    发明授权
    0.1 Micron rated polypropylene membrane and method for its preparation 失效
    0.1微米级聚丙烯膜及其制备方法

    公开(公告)号：US4490431A

    公开(公告)日：1984-12-25

    申请号：US438823

    申请日：1982-11-03

    Applicant: Gunter H. Vitzthum ,  Michael A. Davis

    Inventor： Gunter H. Vitzthum ,  Michael A. Davis

    IPC: B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  C08J9/00 ,  C08J9/28 ,  B32B3/00 ,  B29D27/04

    CPC classification number: C08J9/28 ,  B01D67/003 ,  B01D69/02 ,  B01D71/26 ,  C08J2201/03 ,  C08J2201/052 ,  C08J2201/0542 ,  C08J2323/12 ,  Y10T428/249979

    Abstract: There is disclosed a substantially skinless microporous polypropylene membrane characterized by having(a) a bubble point of about 25 to about 50 psi;(b) a thickness of about 3 to about 7 mils;(c) a nitrogen flow rate of at least 0.5 liters per square centimeter-minute;(d) a burst strength of at least 10 psi; and(e) an S value of about 15, or less.There is also disclosed a method of preparing a microporous polypropylene membrane comprising heating a mixture of about 30 percent polypropylene and about 70 percent, N,N-bis(2-hydroxyethyl)tallowamine, by weight, to a temperature and for a time sufficient to form a homogeneous solution, casting or extruding said solution at a thickness of about 3 to about 7 mils, onto a chill roll maintained at a temperature of from about 50.degree. to about 80.degree. C., allowing said solution to solidify on said chill roll to form a solid sheet, removing said solid sheet from said chill roll and removing at least a substantial portion of the liquid from said sheet to form the microporous polypropylene membrane.

    Abstract translation: 公开了一种基本上无皮的微孔聚丙烯膜，其特征在于具有（a）约25至约50psi的起泡点; （b）约3至约7密耳的厚度; （c）至少0.5升/平方厘米分钟的氮气流量; （d）至少10psi的爆裂强度; 和（e）约15或更小的S值。 还公开了一种制备微孔聚丙烯膜的方法，其包括将约30％聚丙烯和约70％重量的N，N-双（2-羟乙基）牛油胺的混合物加热到足以使 形成均匀的溶液，将所述溶液以约3至约7密耳的厚度浇铸或挤出到保持在约50℃至约80℃温度的冷却辊上，使所述溶液在所述冷却辊上固化 以形成固体片材，从所述冷却辊中除去所述固体片材并从所述片材中除去至少大部分的液体以形成微孔聚丙烯膜。

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