Addition polymerizable aromatic sulfonium salts and polymers thereof
    11.
    发明授权
    Addition polymerizable aromatic sulfonium salts and polymers thereof 失效
    加成可聚合芳族锍盐及其聚合物

    公开(公告)号:US4528384A

    公开(公告)日:1985-07-09

    申请号:US164744

    申请日:1980-06-30

    CPC分类号: C08F2/28 C08F12/32

    摘要: Novel polymers having high activity as cationic surface-active agents are prepared by the addition polymerization of ethylenically unsaturated aromatic sulfonium salts, e.g., ##STR1## When such polymers are heated and/or dried, they are irreversibly converted to inert, nonionic residues without the elimination of odorous by-products.The novel sulfonium salt polymers having relatively low molecular weight and low charge density are particularly useful as surfactants or emulsifiers in the emulsion polymerization of ethylenically unsaturated monomers such as styrene, butadiene, alkyl acrylates and the like. The polymers having high molecular weight and high charge density are useful as thickeners and flocculants.

    摘要翻译: 通过烯键式不饱和芳族锍盐的加成聚合制备具有高活性的阳离子表面活性剂的新型聚合物,例如,当加热和/或干燥这些聚合物时,它们不可逆地转化为惰性的非离子残余物, 消除恶臭副产品。 具有相对低分子量和低电荷密度的新型锍盐聚合物在烯属不饱和单体如苯乙烯,丁二烯,丙烯酸烷基酯等的乳液聚合中特别可用作表面活性剂或乳化剂。 具有高分子量和高电荷密度的聚合物可用作增稠剂和絮凝剂。

    Perfluorocarbon-polymeric coatings having low critical surface tensions
    12.
    发明授权
    Perfluorocarbon-polymeric coatings having low critical surface tensions 失效
    具有低临界表面张力的全氟碳聚合物涂层

    公开(公告)号:US4344993A

    公开(公告)日:1982-08-17

    申请号:US182892

    申请日:1980-09-02

    摘要: Coatings having very low critical surface tensions comprise (1) a hydrophilic polymer such as polyacrylamide, (2) an ionic perfluorocarbon compound such as 3-[((heptadecafluorooctyl)sulfonyl)amino]-N,N,N-trimethyl-1-propanaminium iodide and (3) a cyclic sulfonium zwitterion cross-linking agent such as 2,2-bis(3-tetrahydrothiophenium-4-oxidophenyl)-propylidene. Such coatings are most advantageously employed as release coatings on internal surfaces of chemical reaction vessels in order to minimize the deposition (build-up) of undesirable materials on such internal surfaces.

    摘要翻译: 具有非常低的临界表面张力的涂层包括(1)亲水性聚合物如聚丙烯酰胺,(2)离子全氟化碳化合物如3 - [((十七氟辛基)磺酰基)氨基] -N,N,N-三甲基-1-丙胺 碘化物和(3)环状锍两性离子交联剂如2,2-双(3-四氢噻吩-4-氧基苯基) - 亚丙基。 这种涂层最有利地用作化学反应容器的内表面上的剥离涂层,以便最小化在这样的内表面上不期望的材料的沉积(堆积)。

    Cyclic sulfonium ylids
    13.
    发明授权
    Cyclic sulfonium ylids 失效
    环状锍基

    公开(公告)号:US4196298A

    公开(公告)日:1980-04-01

    申请号:US958275

    申请日:1978-11-06

    CPC分类号: C07D333/46

    摘要: Novel cyclic sulfonium ylids corresponding to the formula ##STR1## wherein R is a hydrocarbylene radical (or a hydrocarbylene radical whose chain length is interrupted by an atom of oxygen or sulfur) of from 2 to about 20 carbon atoms, are useful as cross-linking agents for carboxyl-containing polymers. The compounds are conveniently prepared by reacting phenacyltetrahydrothiophenium bromide with the corresponding hydrocarbylene diisocyanate in the presence of a strong base (e.g. sodium hydride) and anhydrous tetrahydrofuran.

    摘要翻译: 对应于其中R为2-20个碳原子的亚烃基(或其长度被氧或硫原子间隔的亚烃基)的环状锍基, 含羧基聚合物的交联剂。 通过使苯甲酰基四氢噻吩溴与相应的亚烃基二异氰酸酯在强碱(如氢化钠)和无水四氢呋喃的存在下反应来方便地制备这些化合物。

    Reverse osmosis membrane
    15.
    发明授权
    Reverse osmosis membrane 失效
    反渗透膜

    公开(公告)号:US5464538A

    公开(公告)日:1995-11-07

    申请号:US240351

    申请日:1994-05-10

    IPC分类号: G03F7/038 G03F7/039 B01D69/12

    CPC分类号: G03F7/038 G03F7/039

    摘要: Novel reverse osmosis membranes and a method for preparing such membranes are described. A substrate can be coated with a first compound bearing a plurality of onium groups and a second compound bearing a plurality of nucleophilic groups. The resulting coating cures readily upon exposure to actinic radiation.

    摘要翻译: 描述了新的反渗透膜和制备这种膜的方法。 基材可以涂覆有带有多个鎓基的第一化合物和带有多个亲核基团的第二化合物。 所得涂层暴露于光化辐射下易于固化。

    Perfluorocarbon based polymeric coatings having low critical surface
tensions
    20.
    发明授权
    Perfluorocarbon based polymeric coatings having low critical surface tensions 失效
    具有低临界表面张力的全氟碳基聚合物涂层

    公开(公告)号:US4592930A

    公开(公告)日:1986-06-03

    申请号:US777264

    申请日:1985-09-16

    IPC分类号: C08F8/18

    CPC分类号: C08F8/18

    摘要: Polymers comprising pendant rearranged oxazoline and/or oxazine portions linked to a perfluorocarbon moiety having a perfluoroalkyl group are prepared. Such polymers can provide coating compositions which exhibit critical surface tensions of wetting of less than about 15 dynes/cm.

    摘要翻译: 制备包含与具有全氟烷基的全氟化碳部分连接的重排的恶唑啉和/或恶嗪部分的聚合物。 这样的聚合物可以提供涂层组合物,其表现出小于约15达因/厘米的临界表面张力的润湿。