Semipermeable membranes prepared from polymers containing adjacent,
pendent carboxy groups
    2.
    发明授权
    Semipermeable membranes prepared from polymers containing adjacent, pendent carboxy groups 失效
    半透膜由含有相邻的侧链羧基的聚合物制备

    公开(公告)号:US4663050A

    公开(公告)日:1987-05-05

    申请号:US500116

    申请日:1983-06-01

    IPC分类号: B01D71/40 B01D13/00

    CPC分类号: B01D71/40

    摘要: Semipermeable membranes useful for separating mixtures of ethanol and water into enriched fractions of each are prepared by cross-linking 50-90 weight percent of at least one polymer containing pendent, adjacent carboxy groups with 10-50 weight percent of at least one diamine. Membranes prepared from copolymers of maleic anhydride and styrene cross-linked with a polyoxyalkylene diamine are exemplary. These membranes are also useful in gas separation processes, such as separating oxygen from nitrogen.

    摘要翻译: 通过将50-90重量%的至少一种含有侧链的相邻羧基的聚合物与10-50重量%的至少一种二胺交联而制备用于将乙醇和水的混合物分离成富集部分的半透膜。 由马来酸酐和与聚氧化烯二胺交联的苯乙烯的共聚物制备的膜是示例性的。 这些膜也可用于气体分离过程,例如从氮气中分离氧气。

    Imidized surface protection for maleic anhydride interpolymer articles
    3.
    发明授权
    Imidized surface protection for maleic anhydride interpolymer articles 失效
    马来酸酐互聚物制品的酰亚胺化表面保护

    公开(公告)号:US4508787A

    公开(公告)日:1985-04-02

    申请号:US217482

    申请日:1980-12-17

    摘要: A protective coating which is resistant to attack by basic solutions is formed from interpolymers containing maleic anhydride (MAH). An article is coated with a solution of the dissolved ammonium or amine salts of the MAH interpolymer, or if the article itself contains MAH the salts may alternatively be formed on the surface of the article by applying a basic solution containing the ammonium or amine ions. The article is then dried and heated at a temperature sufficient to form the cyclic imide structure from the ammonium or amine salt of the MAH, typically about 160 to 200.degree. C.

    摘要翻译: 耐碱性溶液侵蚀的保护涂层由含有马来酸酐(MAH)的互聚物形成。 用MAH互聚物的溶解的铵盐或胺盐的溶液涂覆制品,或者如果制品本身含有MAH,则可以通过施加含有铵或胺离子的碱性溶液在制品的表面上形成盐。 然后将制品干燥并在足以从MAH的铵盐或胺盐形成环状酰亚胺结构的温度下加热,通常约160至200℃。

    High nitrile resins containing maleic anhydride
    6.
    发明授权
    High nitrile resins containing maleic anhydride 失效
    含有马来酸酐的高腈树脂

    公开(公告)号:US4349653A

    公开(公告)日:1982-09-14

    申请号:US27955

    申请日:1979-04-09

    CPC分类号: C08F220/42 C08F279/02

    摘要: Polymeric compositions having high softening temperatures, good gas barrier properties and low creep properties are composed of an olefinically unsaturated nitrile, another monovinyl component and maleic anhydride and optionally a diene monomer.

    摘要翻译: 具有高软化温度,良好气体阻隔性能和低蠕变性能的聚合物组合物由烯属不饱和腈,另一单乙烯基组分和马来酸酐和任选的二烯单体组成。

    Thermoplastic nitrile resin blends
    7.
    发明授权
    Thermoplastic nitrile resin blends 失效
    热塑性腈树脂共混物

    公开(公告)号:US4153648A

    公开(公告)日:1979-05-08

    申请号:US846289

    申请日:1977-10-28

    IPC分类号: C08L33/20 C08L23/00 C08L33/00

    CPC分类号: C08L33/20

    摘要: Blends of high-acrylonitrile thermoplastic copolymers with acrylonitrile-indene copolymers have improved softening temperatures, improved gas barrier properties and other improved physical properties.

    摘要翻译: 高丙烯腈热塑性共聚物与丙烯腈 - 茚共聚物的共混物具有改善的软化温度,改善的气体阻隔性能和其它改进的物理性能。

    High nitrile resins containing maleic anhydride
    8.
    发明授权
    High nitrile resins containing maleic anhydride 失效
    含有马来酸酐的高腈树脂

    公开(公告)号:US4197263A

    公开(公告)日:1980-04-08

    申请号:US944109

    申请日:1978-09-20

    IPC分类号: C08F279/02

    CPC分类号: C08F279/02

    摘要: Polymeric compositions having high softening temperatures, good gas barrier properties and low creep properties are composed of an olefinically unsaturated nitrile, another monovinyl component and maleic anhydride and optionally a diene monomer.

    摘要翻译: 具有高软化温度,良好气体阻隔性能和低蠕变性能的聚合物组合物由烯属不饱和腈,另一单乙烯基组分和马来酸酐和任选的二烯单体组成。

    Chlorinated poly(vinyl chloride) compositions
    10.
    发明授权
    Chlorinated poly(vinyl chloride) compositions 失效
    氯化聚(氯乙烯)组合物

    公开(公告)号:US4677164A

    公开(公告)日:1987-06-30

    申请号:US859519

    申请日:1986-05-05

    IPC分类号: C08L27/22 C08L27/24 C08F32/08

    CPC分类号: C08L27/24

    摘要: A composition comprising an intimate admixture of(a) 50 to 98 parts by weight of chlorinated poly(vinyl chloride) and(b) 50 to 2 parts by weight of an addition tetrapolymer containing the following monomers combined in the polymer structure in the following weight percentages:______________________________________ Weight Percent______________________________________Acrylonitrile 15-35Methyl methacrylate 5-45Indene 5-45.alpha.-methylstyrene or 5-45styrene or amixture of both______________________________________Where (a) plus (b) total 100 parts by weight, and the total parts by weight of combined indene plus .alpha.-methyl styrene plus styrene in the tetrapolymer (b) is 38-70 parts by weight.

    摘要翻译: 一种组合物,其包含(a)50至98重量份的氯化聚(氯乙烯)和(b)50至2重量份的加成四聚物的混合物,所述四元共聚物包含以下列重量组合在聚合物结构中的以下单体 百分比:重量百分比 - 丙烯腈15-35-甲基丙烯酸甲酯5-45-内酯5-45-α-甲基苯乙烯或5-45-苯乙烯或二者的混合物 - 其中(a)加(b)总共100份 并且在四元共聚物(b)中的组合茚和α-甲基苯乙烯加苯乙烯的总重量份数为38-70重量份。