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8 条记录 (耗时 0.012 秒)

    Chloropolyethylene, process for the manufacture thereof and its use
    3.
    发明授权
    Chloropolyethylene, process for the manufacture thereof and its use 失效
    氯聚乙烯，其制造方法及其用途

    公开(公告)号：US4562224A

    公开(公告)日：1985-12-31

    申请号：US553690

    申请日：1983-11-21

    申请人： Wolfram Busch ,  Johannes Brandrup ,  Dietrich Fleischer

    发明人： Wolfram Busch ,  Johannes Brandrup ,  Dietrich Fleischer

    IPC分类号： C08F8/00 ,  C08F8/18 ,  C08F8/20 ,  C08F8/22 ,  C08F10/00 ,  C08F10/02 ,  C08L23/26 ,  C08L23/28 ,  C08L101/00

    CPC分类号： C08F8/22

    摘要： The invention provides finely dispersed, agglomeration-free chloropolyethylene having good rubber and anti-blocking properties. The invention provides furthermore a process for the manufacture of such a chloropolyethylene, according to which chlorination of the starting polyethylene is carried out in the presence of a dispersing agent system of poly-N-vinylprrolidone and hydrophobic silicic acid. This process allows also the use of polyethylene types having a pronounced tendency to agglomeration.

    摘要翻译： 本发明提供了具有良好的橡胶和防粘连性能的精细分散，无团聚的聚氯乙烯聚乙烯。 本发明还提供了制造这种氯代聚乙烯的方法，根据该方法，在聚N-乙烯基吡咯烷酮和疏水硅酸的分散剂体系的存在下进行起始聚乙烯的氯化。 该方法还允许使用具有明显倾向于聚集的聚乙烯类型。

    Process for the preparation of fluorocarbon polymers containing carboxyl groups, and certain starting materials required for this, and the fluoro-sulfato compounds formed as intermediate products in the process
    4.
    发明授权
    Process for the preparation of fluorocarbon polymers containing carboxyl groups, and certain starting materials required for this, and the fluoro-sulfato compounds formed as intermediate products in the process 失效
    制备含有羧基的氟碳聚合物的方法，以及所需的某些原料以及在该方法中形成为中间产物的氟 - 硫酸酯化合物

    公开(公告)号：US4471076A

    公开(公告)日：1984-09-11

    申请号：US467179

    申请日：1983-02-16

    申请人： Peter Blickle ,  Johannes Brandrup ,  Hans Millauer ,  Werner Schwertfeger ,  G/u/ nter Siegemund

    发明人： Peter Blickle ,  Johannes Brandrup ,  Hans Millauer ,  Werner Schwertfeger ,  G/u/ nter Siegemund

    IPC分类号： C08F8/12 ,  B01J39/20 ,  C08F8/34

    CPC分类号： C08F8/12 ,  C08F2800/10

    摘要： Substantially non-crosslinked fluorocarbon polymers containing carboxyl groups are prepared starting from non-crosslinked and in some cases new, fluorocarbon polymers in which the linear macromolecules carry side chains containing the end group --CHFX (X is F or CF.sub.3). The starting polymers are first reacted with peroxodisulfuryl difluoride FSO.sub.2 O--OSO.sub.2 F to give the corresponding fluorosulfato derivatives containing the side chain end groups. ##STR1## In the event that X is F, these derivaties are then converted into the corresponding carboalkoxy derivatives by means of an alcohol, the fluorosulfato group being split off, and these carboalkoxy derivatives are then converted by saponification into the products containing the free carboxyl groups; the fluorosulfato derivatives can also be hydrolyzed with water, if appropriate in the presence of an inert solvent and/or bases, to give, without further treatment, the products containing the free carboxyl groups.The fluorosulfato derivatives in which X is CF.sub.3 in the side chain end groups are first decomposed in the presence of catalytic amounts of alkali metal fluorides and/or aprotic nitrogen bases to give the products containing the side chain end groups ##STR2## and the latter are then hydrolyzed to give the products containing the free carboxyl group.Virtually non-crosslinked fluorocarbon polymers containing carboxyl groups are of industrial importance in the form of cation exchanger membranes in electrolytic cells, particularly in chlor-alkali electrolysis.

    摘要翻译： 含有羧基的基本上非交联的碳氟化合物聚合物是从非交联的，在某些情况下，新的含有端基-CHFX（X是F或CF 3）的侧链的大分子的氟碳聚合物开始制备的。 起始聚合物首先与过氧二硫代氟化二氟FSO 2 O-OSO 2 F反应，得到含有侧链端基的相应的氟代磺酰基衍生物。 （X是F或CF3）。 在X为F的情况下，这些衍生物然后通过醇转化成相应的烷氧基衍生物，将氟代磺酰基分解，然后将这些烷氧羰基衍生物通过皂化转化成含有游离羧基的产物; 如果在惰性溶剂和/或碱存在的情况下，氟磺酸衍生物也可以用水水解，得到含有游离羧基的产物，无需进一步处理。 在侧链端基中X为CF 3的氟代硫脲衍生物首先在催化量的碱金属氟化物和/或非质子氮碱的存在下分解，得到含有侧链端基的产物，并且后者为 然后水解，得到含有游离羧基的产物。 含有羧基的几乎不交联的碳氟化合物聚合物在电解槽中的阳离子交换膜的形式具有工业上的重要性，特别是在氯碱电解中。

    Polymerization of vinylic monomer in presence of benzothiazol-hydrazones
    7.
    发明授权
    Polymerization of vinylic monomer in presence of benzothiazol-hydrazones 失效
    乙烯基单体在苯并噻唑 - 腙存在下的聚合

    公开(公告)号：US4256854A

    公开(公告)日：1981-03-17

    申请号：US971525

    申请日：1978-12-20

    申请人： Edgar Fischer ,  Johannes Brandrup ,  Jurgen Weinlich

    发明人： Edgar Fischer ,  Johannes Brandrup ,  Jurgen Weinlich

    IPC分类号： C08F14/00 ,  C08F2/00 ,  C08F259/04 ,  C23F15/00 ,  C08F14/06 ,  C08L27/06

    CPC分类号： C23F15/005 ,  C08F2/004 ,  C08F259/04

    摘要： The present invention provides a process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in aqueous dispersion in the presence of radical-forming catalysts and optionally suspension stabilizers, emulsifiers and further polymerization auxiliaries, which comprises carrying out the polymerization in a reactor the inner walls of which and other parts where polymer deposits may form are coated partially or entirely with a coating containing determined compounds of the formula ##STR1## In accordance with this invention, a substantial suppression of polymer deposit formation is achieved especially in the case of vinyl chloride copolymers.

    摘要翻译： 本发明提供了一种通过在自由基形成催化剂和任选的悬浮稳定剂，乳化剂和其它聚合助剂的存在下在水分散体中聚合单体或单体混合物来制造氯乙烯聚合物的方法，其包括进行聚合反应 可以形成聚合物沉积物的内壁和聚合物沉积物的其它部分的反应器被部分或全部地涂覆在含有下列化合物的涂层中：根据本发明，实现聚合物沉积物形成的实质性抑制，特别是在 氯乙烯共聚物的情况。