Method for preparing an open porous polymer material and an open porous polymer material
    54.
    发明授权
    Method for preparing an open porous polymer material and an open porous polymer material 有权
    制备开孔多孔聚合物材料和开孔多孔聚合物材料的方法

    公开(公告)号:US07425288B2

    公开(公告)日:2008-09-16

    申请号:US10451989

    申请日:2001-12-21

    Abstract: A method for preparing an open pourous polymer material, comprises forming of a polymer solution, addition of a porogen to the polymer solution and precipitation with water of polymer from the polymer solution, and the method then comprises removal of solvent and porogen from the polymer material wherein the precipitation is homogenous through that the water is in form of crystal water and that the crystal water is bonded to the porogen, wherein the porogen is a sugar hydrate. An open porous polymer material, a mixture comprising a sugar hydrate and a polymer solution, and a designed material, and uses thereof are also disclosed.

    Abstract translation: 一种制备开放聚合物材料的方法,包括形成聚合物溶液,向聚合物溶液中加入致孔剂并用聚合物溶液中的聚合物水进行沉淀,然后该方法包括从聚合物材料中除去溶剂和致孔剂 其中沉淀是均匀的,因为水是结晶水的形式,结晶水与致孔剂结合,其中致孔剂是糖水合物。 还公开了开放的多孔聚合物材料,包含糖水合物和聚合物溶液的混合物,以及设计的材料及其用途。

    Elastomeric film and product therefrom
    59.
    发明授权
    Elastomeric film and product therefrom 失效
    弹性薄膜和产品

    公开(公告)号:US3832214A

    公开(公告)日:1974-08-27

    申请号:US15771671

    申请日:1971-06-28

    Applicant: TENNECO CHEM

    Inventor: WANG W

    CPC classification number: C08J9/28 B32B27/00 C08J2201/0544

    Abstract: SUPPLE, MICROPOROUS, BREATHABLE ELASTOMERIC FILMS WITH A SYSTEM OF INTERCOMMUNICATING CELLS ARE DESCRIBED. THE FILMS WHICH OPTICALLY CONTAIN INERT ORGANIC OR INORGANIC PARTICLES VARYING IN SIZE FROM ABOUT 0.02 MICRON TO 150 MICRONS ARE PREPARED BY DEPOSITION FROM A SOLUTION SPREAD ON A SUITABLE SURFACE. DEPOSITION IS EFFECTED BY EXPOSURE OF THE SOLUTION TO A LIQUID WHICH IS MISCIBLE WITH THE SOLVENT BUT WHICH DOES NOT DISSOLVE THE ELASTOMER. THE USEOF THE FILM IN THE PREPARATION OF LEATHER REPLACEMENT COMPOSITIONS BY INTEGRATION AS A GRAIN LAYER IN AND ON THE SURFACE OF SUITABLE SUBSTRATES IS DESCRIBED. FOR THIS USE THE SELECTED SUBSTRATE IS WET WITH A LIQUID IN WHICH THE ELASTOMER IS INSOLUBLE, COATED WITH A SOLUTION OF THE ELASTOMER IN A SOLVENT WHICH IS MISCIBLE WITH THE LIQUID USED TO WET SUBSTRATE, AND THE WET, COATED SUBSTRATE IS TREATED WITH ADDITIONAL LIQUIE TO DEPOSIT THE ELASTOMER EXTENDING INTO THE UPPER STRATA OF THE SUBSTRATE AND ABOVE ITS SURFACE.

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