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20 条记录 (耗时 0.015 秒)

    Stabilization of crosslinkable polymers
    1.
    发明授权
    Stabilization of crosslinkable polymers 失效
    可交联聚合物的稳定化

    公开(公告)号：US4145500A

    公开(公告)日：1979-03-20

    申请号：US819162

    申请日：1977-07-26

    申请人： Theo Neukam ,  Frank Druschke ,  Francis Bentz ,  Gunther Nischk

    发明人： Theo Neukam ,  Frank Druschke ,  Francis Bentz ,  Gunther Nischk

    IPC分类号： C08F2/00 ,  C08F2/10 ,  C08F2/44 ,  C08F220/00 ,  C08F220/42 ,  C08F220/44 ,  C08F220/48

    CPC分类号： C08F220/44

    摘要： The invention relates to a process for the production of a stabilized crosslinkable copolymer of acrylonitrile which comprises copolymerizing at least 65% by weight of acrylonitrile with from 0.1 to 3% by weight of an N-methylol acyl ester of an ethylenically unsaturated carboxylic acid amide, optionally from 0.5 to 5% by weight of an N-methylol alkyl ether of an ethylenically unsaturated carboxylic acid amide and, optionally, at least one other copolymerizable comonomer in an aqueous medium in the presence of a redox catalyst and in the presence of at least one water-soluble compound containing a carboxylic acid amide group.

    摘要翻译： 本发明涉及一种制备丙烯腈稳定的可交联共聚物的方法，该方法包括将至少65重量％的丙烯腈与0.1-3重量％的烯键式不饱和羧酸酰胺的N-羟甲基酰基酯， 任选的0.5至5重量％的烯键式不饱和羧酸酰胺的N-羟甲基烷基醚和任选的至少一种其它共聚单体在水性介质中，在氧化还原催化剂存在下和至少存在 一种含有羧酸酰胺基团的水溶性化合物。

    2-Methylene propane phosphonic acid esters and their copolymer with acrylonitrile
    5.
    发明授权
    2-Methylene propane phosphonic acid esters and their copolymer with acrylonitrile 失效
    2-亚甲基丙烷膦酸酯及其与丙烯腈的共聚物

    公开(公告)号：US3935174A

    公开(公告)日：1976-01-27

    申请号：US499068

    申请日：1974-08-20

    申请人： Eugen Velker ,  Francis Bentz ,  Gunther Nischk

    发明人： Eugen Velker ,  Francis Bentz ,  Gunther Nischk

    IPC分类号： C07F9/38 ,  C07F9/40 ,  C08F30/02 ,  C08F220/44 ,  C08F210/00 ,  C08F220/02 ,  C08F220/42 ,  C08F220/70

    CPC分类号： C08F30/02 ,  C07F9/3826 ,  C07F9/4015 ,  C07F9/4031 ,  C08F220/44

    摘要： 2-METHYLENE PROPANE PHOSPHONIC ACID ESTERS AND THEIR COPOLYMERS WITH ACRYLONITRILE ARE THE OBJECTS OF THE INVENTION. The fibers produced from the copolymers are flame-resistant and show increased thermal stability, improved affinity for dyes and fastness to light. The copolymers of acrylonitrile and 2-methylene propane phosphonic acid esters - in addition to other comonomers - are produced by polymerizing the monomers in solution or - preferably - in an aqueous suspension or emulsion. Formed articles, such as fibres from said copolymers can be prepared by spinning a solution of the copolymer in an organic solvent p.i. in dimethyl formamide.

    摘要翻译： 2-甲基丙酸膦酸酯及其与丙烯腈共聚物是本发明的目的。 由共聚物生产的纤维具有阻燃性，并且显示出增加的热稳定性，改善对染料的亲和力和耐光牢度。 除了其它共聚单体之外，丙烯腈和2-亚甲基丙烷膦酸酯的共聚物是通过在溶液中或优选在水性悬浮液或乳液中聚合单体制备的。 形成的制品，例如来自所述共聚物的纤维可以通过将共聚物溶液旋转在有机溶剂p.i中来制备。 在二甲基甲酰胺中。