POLYMERS, POLYMER MEMBRANES AND METHODS OF PRODUCING THE SAME
    2.
    发明申请
    POLYMERS, POLYMER MEMBRANES AND METHODS OF PRODUCING THE SAME 有权
    聚合物,聚合物膜及其生产方法

    公开(公告)号:US20130047844A1

    公开(公告)日:2013-02-28

    申请号:US13696643

    申请日:2010-05-13

    Abstract: A method for preparing a polymeric material includes: providing a polymeric matrix having at least one polymer and at least one porogen; and degrading the at least one porogen at a temperature T≦1.1 Tg, where Tg is a glass transition temperature of the polymeric matrix. The degrading step includes exposing the polymeric matrix to thermal degradation, chemical degradation, electrical degradation and/or radiation degradation, wherein the polymeric material has a permeability at least 1.2 times a permeability of the polymeric matrix for a gas, and a selectivity of the polymeric material is at least 0.35 times a selectivity of the polymeric matrix for a gas pair. The method preferably provides gas separation membranes that exceed Robeson's upper bound relationship for at least one gas separation pair. Novel polymeric materials, gas separation membranes and fluid component separation methods are also described.

    Abstract translation: 制备聚合材料的方法包括:提供具有至少一种聚合物和至少一种致孔剂的聚合物基质; 并在温度T n1E下降解至少一种致孔剂; 1.1 Tg,其中Tg是聚合物基质的玻璃化转变温度。 降解步骤包括将聚合物基质暴露于热降解,化学降解,电降解和/或辐射降解,其中聚合物材料具有至少1.2倍的聚合物基质对于气体的渗透性,并且聚合物的选择性 材料是气体对的聚合物基质的选择性的至少0.35倍。 该方法优选提供超过用于至少一个气体分离对的Robeson上限关系的气体分离膜。 还描述了新颖的聚合物材料,气体分离膜和流体组分分离方法。

    Protecting carbon steel from corrosion with nonconducting poly(aniline)
    3.
    发明授权
    Protecting carbon steel from corrosion with nonconducting poly(aniline) 失效
    用不导电的聚(苯胺)保护碳钢免受腐蚀

    公开(公告)号:US5441772A

    公开(公告)日:1995-08-15

    申请号:US129699

    申请日:1993-09-29

    Abstract: Carbon steel substrates are protected from corrosive environments by a coating of nonconductive poly(aniline) which has been chemically prepared and cast onto the substrate from solution. The coating can also include other polymers which are miscible with the poly(aniline) but do not protonate it so as to make it conductive. Such polymers can include polyimides, epoxies, and urethane linked diisocyanates, among others. In these blends, a weight composition of at least 5% poly(aniline) to the other polymer is preferred. Overall, the nonconductive form of polyaniline has been found to be more effective in this service than the conductive form. Air oxidation of the poly(aniline) coating before exposure to a corrosive environment enhances the benefits.

    Abstract translation: 碳钢基材通过已经化学制备并从溶液流延到基材上的非导电聚(苯胺)涂层来防止腐蚀环境。 涂层还可以包括与聚(苯胺)可混溶但不使其质子化以使其导电的其它聚合物。 这些聚合物可以包括聚酰亚胺,环氧化物和氨基甲酸酯连接的二异氰酸酯等。 在这些共混物中,优选至少5%的聚(苯胺)与其它聚合物的重量组成。 总的来说,已经发现聚苯胺的非导电形式在这种使用中比导电形式更有效。 在暴露于腐蚀性环境之前,聚(苯胺)涂层的空气氧化增强了效果。

    Copolyesters
    7.
    发明授权
    Copolyesters 失效
    共聚酯

    公开(公告)号:US5039717A

    公开(公告)日:1991-08-13

    申请号:US304042

    申请日:1989-01-30

    CPC classification number: C08G63/60

    Abstract: Injection-moldable copolyesters of terephthalate units, ethylene units and a high proportion (e.g. 82-87) mole %) of oxybenzoate units, and cookware made of such copolyesters. Process for making such copolyesters by reacting polyethylene terephthalate with p-acetoxybenzoic acid in a solvent, first at a temperature below 240.degree. C. to product a fragmented polyester, raising the temperature to split off acetic acid, then adding more acetoxybenzoic acid to raise the oxybenzoate content to more than 80 mole %.

    Abstract translation: 对苯二甲酸酯单元的注射成型共聚酯,乙烯单元和高比例(例如82-87)摩尔%)的羟基苯甲酸酯单元,以及由这种共聚酯制成的炊具。 通过使聚对苯二甲酸乙二醇酯与对乙酰氧基苯甲酸在溶剂中反应制备这种共聚酯的方法,首先在低于240℃的温度下制备碎片聚酯,提高温度以分离乙酸,然后加入更多的乙酰氧基苯甲酸, 羟基苯甲酸酯含量超过80%(摩尔)。

    Water or gas purification by bulk absorption
    9.
    发明授权
    Water or gas purification by bulk absorption 失效
    水或气体通过大量吸收净化

    公开(公告)号:US4956095A

    公开(公告)日:1990-09-11

    申请号:US459009

    申请日:1989-12-29

    CPC classification number: C02F1/285 B01D53/1493 B01D53/72

    Abstract: Water or gas containing organic impurities is purified by contact with a poly(trialkylsilylpropyne), such as poly[1-(trimethylsilyl)-1-propyne], operating as a bulk absorbent. Regeneration of the absorbent can be by vacuum or a stream of air.

    Abstract translation: 含有有机杂质的水或气体通过与聚(三烷基甲硅烷基丙炔)接触来纯化,例如聚[1-(三甲基甲硅烷基)-1-丙炔]作为体吸收剂。 吸收剂的再生可以是真空或空气流。

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