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    • 8. 发明授权
    • Ultrathin film, process for production thereof, and use thereof for
concentrating a specified gas in a gaseous mixture
    • 超薄膜,其生产方法及其用于将特定气体浓缩在气体混合物中的用途
    • US4493714A
    • 1985-01-15
    • US491536
    • 1983-05-04
    • Fumio UedaEiichi HashimotoTakeyoshi YamadaKoh Mori
    • Fumio UedaEiichi HashimotoTakeyoshi YamadaKoh Mori
    • B01D69/12B01D71/54B01D71/70C08G18/32C08G18/38C08G18/72C08G18/77B01D53/22
    • C08G18/3893B01D69/125B01D71/54B01D71/70C08G18/3225C08G18/72C08G18/778
    • An ultrathin film composed substantially of silicon-containing polyurea comprising polyaddition bonded units derived from(A) at least one polyamine selected from the group consisting of silicon-containing polyamines and hydrocarbon-type polyamines, each of said polyamines containing at least two primary or secondary amino groups in the molecule, and(B) at least one polyisocyanate compound selected from the group consisting of silicon-containing polyisocyanates and hydrocarbon-type polyisocyanates, each of said polyisocyanates having at least two isocyanate groups in the molecular chains;provided that when the polyisocyanate compound is the hydrocarbon-type polyisocyanate alone, at least one of the selected polyamines is a silicon-containing polyamine containing at least one terminal amino group in the molecule.A composite structure composed of a microporous supporting film and the ultrathin film supported thereon is useful for the production of a gaseous mixture containing a specified gas in a high concentration from a mixture of two or more gases including said specified gas, and is prepared by subjecting the polyamine and the polyisocyante compound to interfacial polyaddition reaction on a microporous supporting film to form an ultrathin film composed substantially of a silicon-containing polyurea on the microporous supporting film.
    • 一种基本上由含硅聚脲组成的超薄膜,其包含衍生自(A)至少一种选自含硅多胺和烃型多胺的多胺的加聚键合单元,每种所述多胺含有至少两个伯或仲二 分子中的氨基,(B)至少一种选自含硅多异氰酸酯和烃型多异氰酸酯的多异氰酸酯化合物,所述多异氰酸酯在分子链中具有至少两个异氰酸酯基; 条件是当多异氰酸酯化合物是单独的烃型多异氰酸酯时,所选择的多胺中的至少一种是在分子中含有至少一个末端氨基的含硅多胺。 由微孔支撑膜和其上支撑的超薄膜组成的复合结构可用于从包含所述特定气体的两种或更多种气体的混合物制备含有高浓度的特定气体的气体混合物,并且通过 多胺和多异氰酸酯化合物在微孔支撑膜上进行界面加聚反应,以在微孔支撑膜上形成基本上由含硅聚脲组成的超薄膜。
    • 10. 发明授权
    • Heat-curable and solvent-soluble ester group-containing polymer
compositions and process for their preparation
    • 可热固化和溶剂可溶的含酯基聚合物组合物及其制备方法
    • US4220563A
    • 1980-09-02
    • US847580
    • 1977-11-01
    • Shigeyoshi HaraTakeyoshi Yamada
    • Shigeyoshi HaraTakeyoshi Yamada
    • C08G73/16C08J11/18C08L67/00C09D5/25C08L67/02
    • C08J11/18C08G73/16C08L67/00C08J2367/02Y02W30/706
    • A heat-curable and solvent-soluble ester group-containing polymer composition is prepared by the steps of:(1) either (i) reacting a highly polymerized linear aromatic polyester with a diaryl carbonate to depolymerize it to a solvent-soluble low-molecular-weight polyester (component A) containing terminal aryl carboxylate groups, or (ii) effecting the above depolymerization in the presence of a compound containing at least two specified functional groups thereby to form a modified solvent-soluble low-molecular-weight polyester (component A') containing terminal aryl carboxylate groups; and(2) either (i) mixing the resulting component A or A' with a monomeric or solvent-soluble polymeric, polyfunctional compound (component B) containing at least two hydroxyl and/or primary or secondary amino groups or (ii) partially reacting the resulting component A or A' with the component B. The composition has superior workability in molding and curing, and gives cured molded products of high utilitarian value. It is especially suitable for use in wire enamelling varnishes.
    • 通过以下步骤制备可热固化和溶剂可溶的含酯基聚合物组合物:(1)(i)使高度聚合的线性芳族聚酯与碳酸二芳基酯反应以将其解聚成溶剂可溶的低分子量 含有末端芳基羧酸酯基的重量份聚酯(A成分),或者(ii)在含有至少两个特定官能团的化合物的存在下进行上述解聚,从而形成改性溶剂可溶性低分子量聚酯 A'),其包含末端芳基羧酸酯基团; (2)(i)将所得组分A或A'与含有至少两个羟基和/或伯或仲氨基的单体或溶剂可溶的聚合多官能化合物(组分B)混合,或(ii)部分反应 所得到的组分A或A'与组分B组合。该组合物在成型和固化中具有优异的可加工性,并且具有高功利价值的固化模制产品。 它特别适用于电线搪瓷清漆。