Porous infusible polymer parts
    184.
    发明授权
    Porous infusible polymer parts 有权
    多孔不熔聚合物部件

    公开(公告)号:US08193255B2

    公开(公告)日:2012-06-05

    申请号:US12974048

    申请日:2010-12-21

    Abstract: Porous infusible polymer (IP) parts are made by incorporating 0.2 to 10 volume percent organic fibers, preferably with short lengths, into the particulate IP, consolidating the mixture under pressure and optionally heating, and then “burning off” the fibers. After the fibers are burned off the resulting part has porosity in which the pores are elongated, usually retaining the shape of the organic fibers. When these parts are exposed to moisture (which they usually absorb) and then suddenly heated they tend not to blister from vaporization of the water. This makes them useful as parts for aircraft (jet) and other engines and other applications where sudden temperature increase may occur.

    Abstract translation: 多孔不可渗透聚合物(IP)部件通过将0.2至10体积%有机纤维(优选短长度)掺入颗粒物IP中来制备,在压力和任选加热下固化混合物,然后“烧掉”纤维。 在纤维被烧掉之后,所得部分具有多孔性,其中孔被拉长,通常保持有机纤维的形状。 当这些部件暴露于水分(它们通常吸收)时,然后突然加热,它们往往不会由于水的蒸发而起泡。 这使得它们可用作飞机(喷气)和其他发动机以及可能发生突然升温的其他应用的部件。

    POROUS POLYMER AND PROCESS FOR PRODUCING THE SAME
    188.
    发明申请
    POROUS POLYMER AND PROCESS FOR PRODUCING THE SAME 失效
    多孔聚合物及其制造方法

    公开(公告)号:US20090045119A1

    公开(公告)日:2009-02-19

    申请号:US11915302

    申请日:2006-05-09

    Abstract: The present invention relates to a polymeric porous material characterized in that: the porous material has a bimodal pore size distribution attributable to macropores having a pore size of at least 50 nm and mesopores having a pore size of from 2 nm to less than 50 nm, the proportion of the specific surface area of the macropores to the specific surface area of all pores of the porous material is at least 10%, and the porous material is produced by (1) polymerizing a monomer in the presence of a polymerization initiator using as a porogen a solution obtained by dissolving a polymer having a weight-average molecular weight of at least 100,000 and a molecular weight distribution Mw/Mn of not more than 1.5 in a good solvent for the monomer, and (2) removing the porogen from the resultant product.

    Abstract translation: 本发明涉及一种聚合物多孔材料,其特征在于:多孔材料具有归属于孔径至少为50nm的大孔和孔径为2nm至小于50nm的中孔的双峰孔径分布, 大孔的比表面积与多孔材料的所有孔的比表面积的比例为至少10%,多孔材料通过(1)在聚合引发剂的存在下使用单体聚合来制备多孔材料,其使用如 通过将具有至少100,000的重均分子量和不大于1.5的分子量分布Mw / Mn的聚合物溶解在用于单体的良溶剂中而获得的致孔剂溶液,和(2)从所述单体中除去致孔剂 结果产品。

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