Semipermeable membranes prepared from polymers containing adjacent,
pendent carboxy groups
    1.
    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
    2.
    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℃。

    Impact improvement of rubber-modified nitrile resins
    7.
    发明授权
    Impact improvement of rubber-modified nitrile resins 失效
    橡胶改性腈树脂的改善效果

    公开(公告)号:US4043947A

    公开(公告)日:1977-08-23

    申请号:US649223

    申请日:1976-01-15

    CPC分类号: C08F279/02 C08L51/04

    摘要: The impact resistance of rubber-modified high-nitrile thermoplastic resins is greatly improved by including certain oils such as triethyl phosphate, 2-ethyl hexanoic acid, 2,4-di-t-butyl phenol, trimethyl phosphate, tributyl phosphate, 4-hexyl resorcinol, epoxidized soybean oil, 2,6-di-t-butyl-4-methyl phenol, and p-nonyl phenol therein.

    摘要翻译: 橡胶改性高腈热塑性树脂的耐冲击性通过包括某些油如磷酸三乙酯,2-乙基己酸,2,4-二叔丁基苯酚,磷酸三甲酯,磷酸三丁酯,4-己基 间苯二酚,环氧化大豆油,2,6-二叔丁基-4-甲基苯酚和对壬基苯酚。