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    Acrylonitrile copolymers containing sulfonic acid groups
    1.
    发明授权
    Acrylonitrile copolymers containing sulfonic acid groups 失效
    含有亚磺酸的丙烯酸共聚物

    公开(公告)号：US3666722A

    公开(公告)日：1972-05-30

    申请号：US3666722D

    申请日：1971-03-25

    申请人： BAYER AG

    发明人： SZITA JENO ,  BAHR ULRICH ,  MARZOLPH HERBERT ,  NISCHK GUNTHER

    IPC分类号： C08F220/44 ,  C08F19/00

    CPC分类号： C08F220/44

    摘要： This invention relates to acrylonitrile copolymers containing at least 50 percent by weight of acrylonitrile and up to 10 percent by weight of an ethylenically insaturated sulfonic acid compound of the formula WHEREIN R represents a hydrogen atom or a methyl group, A represents an alkylene radical and X represents hydrogen, ammonium, an alkali or an organic ammonium cation, the balance being one or more additional copolymerizable monomers, and to a process for their production by copolymerizing said monomers in an aqueous medium with a redox catalyst system or in an organic polar solvent with a radical catalyst. The copolymers show a high degree of whiteness, outstanding thermal stability and excellent textile properties together with a high affinity for basic dyes.

    摘要翻译： 本发明涉及丙烯腈共聚物，其含有至少50重量％的丙烯腈和至多10重量％的下式的烯键式不饱和磺酸化合物，其中：R表示氢原子或甲基，A表示亚烷基，X表示 表示氢，铵，碱或有机铵阳离子，余量为一种或多种另外的可共聚单体，以及通过在水介质中将所述单体与氧化还原催化剂体系或有机极性溶剂共聚而制备的方法， 一种自由基催化剂。

    N'-substituted n-(amidosulfonyl)-sulfonic acid amides
    6.
    发明授权
    N'-substituted n-(amidosulfonyl)-sulfonic acid amides 失效
    N-取代的N-（氨基磺酰基）磺酰氨基

    公开(公告)号：US3483208A

    公开(公告)日：1969-12-09

    申请号：US3483208D

    申请日：1967-04-04

    申请人： BAYER AG

    发明人： BAHR ULRICH ,  SULING CARLHANS ,  NISCHK GUNTHER ,  SZITA JENO

    IPC分类号： C08F20/44 ,  C08F220/44 ,  C07C143/82 ,  C07D31/48

    CPC分类号： C08F220/44 ,  C08F2/36 ,  C08F20/44

    摘要： 1,142,187. N - Sulphamoylsulphonamides. FARBENFABRIKEN BAYER A.G. 11 April, 1967 [14 April, 1966; 28 April, 1966], No. 16579/67. Heading C2C. [Also in Division C3] Novel N 1 -substituted N-(sulphamoyl)-sulphonamides of the formula RSO 2 NHSO 2 NR 1 R 2 in which R is alkyl or aryl which may be substituted with one or more groups which are inert under the reaction conditions and R 1 and R 2 are C 1-6 alkyl or together with the adjacent nitrogen atom form a heterocyclic ring may be prepared (a) by reacting an alkyl metal derivative of a sulphonamide of the formula RSO 2 NHM in which M is an alkali metal atom with a sulphamoyl halide of the formula XSO 2 NR 1 R 2 in which X is a halogen atom at 70-150‹ C. in an inert organic anhydrous solvent in the presence of a base or (b) by reacting an alkali metal derivative of a N-substituted sulphamide of the formula R 1 R 2 NSO 2 NHM with a sulphonyl chloride of the formula RSO 2 X at 70-150‹ C. in an inert anhydrous organic solvent in the presence of a base. Suitable bases include alkali metal carbonates and tertiary amines.