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    Process for the production of high molecular weight polychloroprene and its use as a starting material for adhesives
    6.
    发明授权
    Process for the production of high molecular weight polychloroprene and its use as a starting material for adhesives 失效
    用于生产高分子量聚氯丁二烯的方法及其用作粘合剂的起始材料

    公开(公告)号：US4405742A

    公开(公告)日：1983-09-20

    申请号：US280018

    申请日：1981-06-30

    申请人： Rudiger Musch ,  Rudiger Schubart ,  Wilhelm Gobel ,  Heinrich Alberts ,  Gerhard Hohmann

    发明人： Rudiger Musch ,  Rudiger Schubart ,  Wilhelm Gobel ,  Heinrich Alberts ,  Gerhard Hohmann

    IPC分类号： C08F36/18 ,  C09J3/12 ,  C08F2/24 ,  C08F2/38

    CPC分类号： C08F36/18

    摘要： By adding substances corresponding to the following general formula I ##STR1## in which X=O, S or N--R.sub.5 ; R.sub.1 =hydrogen, C.sub.1 -C.sub.19 -alkyl, C.sub.2 -C.sub.19 -alkenyl, phenyl, C.sub.1 -C.sub.4 -alkylene phenyl, C.sub.5 -C.sub.12 -cycloalkyl or C.sub.5 -C.sub.12 -cycloalkenyl; R.sub.2 =hydrogen, C.sub.1 -C.sub.19 -alkyl, C.sub.2 -C.sub.12 -alkenyl, phenyl or C.sub.1 -C.sub.4 -alkylene phenyl; R.sub.3 =hydrogen, C.sub.1 -C.sub.19 -alkyl, C.sub.2 -C.sub.19 -alkenyl, phenyl, C.sub.1 -C.sub.4 -alkylene phenyl, acryl formyl or acetyl; R.sub.4 and R.sub.5 =same or different, C.sub.1 -C.sub.19 -alkyl, C.sub.2 -C.sub.19 -alkenyl, phenyl, C.sub.1 -C.sub.4 -alkylene phenyl, acryl, C.sub.5 -C.sub.12 -cycloalkyl or C.sub.5 -C.sub.12 -cycloalkenyl; R.sub.4 and R.sub.5 may also form a C.sub.4 -C.sub.7 -ring which may optionally contain an oxygen atom in ether form and the radicals R.sub.1 and R.sub.2 may form a C.sub.5 -C.sub.12 -alkylene bridge or a C.sub.5 -C.sub.12 -alkenylene bridge, the radicals R.sub.1 and R.sub.4 may form a C.sub.2 -C.sub.9 -alkylene bridge and the radicals R.sub.1 and R.sub.3 may form a C.sub.3 -C.sub.10 -alkylene bridge; where R.sub.1 and R.sub.2 are attached, the ring formed may be bridged by a C.sub.1 -C.sub.4 -alkylene bridge and the ring systems formed may be substituted by the radical R.sub.6 which represents hydrogen, C.sub.1 -C.sub.5 -alkyl or C.sub.2 -C.sub.5 -alkenyl, in quantities of from 0.05 to 3% by weight, based on 100 parts by weight of monomer, to the aqueous emulsion polymerization of chloroprene at the beginning of the reaction, during or after polymerization, but at the latest before the residual monomers are removed, high-viscosity polychloroprenes characterized by excellent processing behaviour and product properties are obtained.

    摘要翻译： 通过添加对应于下列通式I（I）的物质，其中X = O，S或N-R 5; R1 =氢，C1-C19 - 烷基，C2-C19 - 烯基，苯基，C1-C4-亚烷基苯基，C5-C12-环烷基或C5-C12-环烯基; R2 =氢，C1-C19 - 烷基，C2-C12-烯基，苯基或C1-C4-亚烷基苯基; R3 =氢，C1-C19 - 烷基，C2-C19 - 烯基，苯基，C1-C4-亚烷基苯基，丙烯酰甲酰基或乙酰基; R 4和R 5相同或不同，C 1 -C 19 - 烷基，C 2 -C 19 - 烯基，苯基，C 1 -C 4亚烷基苯基，丙烯酰基，C 5 -C 12 - 环烷基或C 5 -C 12 - 环烯基; R4和R5还可以形成可以任选地含有醚形式的氧原子的C 4 -C 7环，并且基团R 1和R 2可以形成C 5 -C 12亚烷基桥或C 5 -C 12 - 亚烯基桥，基团R 1和 R4可以形成C 2 -C 9 - 亚烷基桥，基团R 1和R 3可以形成C 3 -C 10亚烷基桥; 其中R 1和R 2连接，所形成的环可以被C 1 -C 4 - 亚烷基桥桥连，所形成的环体系可以被代表氢，C 1 -C 5 - 烷基或C 2 -C 5 - 烯基的基团R 6代替， 在反应开始时，在聚合过程中或之后的氯丁二烯的水乳液聚合中，基于100重量份的单体，以0.05重量％的量计，残留单体除去之前的量高 获得以优异的加工性能和产品性能为特征的粘性聚氯乙烯。

    Polymerization of chloroprene
    7.
    发明授权
    Polymerization of chloroprene 失效
    氯丁二烯的聚合

    公开(公告)号：US4839447A

    公开(公告)日：1989-06-13

    申请号：US223092

    申请日：1988-07-22

    申请人： Rudolf Casper ,  Peter Wendling ,  Wolfgang Konter ,  Gerhard Hohmann

    发明人： Rudolf Casper ,  Peter Wendling ,  Wolfgang Konter ,  Gerhard Hohmann

    IPC分类号： C08F2/22 ,  C08F2/24 ,  C08F2/26 ,  C08F2/38 ,  C08F4/30 ,  C08F4/40 ,  C08F36/18

    CPC分类号： C08F36/18

    摘要： Storage-stable polychloroprene is obtained, using a polymerization initiator comprising a mixture of(1) a redox system comprising(a) a reducing agent selected from the group consisting of(i) sodium dithionite,(ii) formamidine sulphinic acid, and(iii) a mixture from (i) and (ii),(b) potassium peroxodisulphate as an oxidizing agent and, optionally,(2) sodium anthraquinone-.beta.-sulphonate as a co-activatorin the presence of oxygen, wherein from 10 to 90 by weight of the initiator are present at the commencement of polymerization and the remainder is added during the polymerization, and after a certain degree of conversion the reducing agent is the only component of redox system (1) which remains to be added.

    摘要翻译： 使用包含（1）氧化还原体系的混合物的聚合引发剂获得存储稳定的聚氯丁二烯，所述氧化还原体系包含（a）选自（i）连二亚硫酸钠，（ii）甲脒亚磺酸和（iii） ）来自（i）和（ii）的混合物，（b）过氧二硫酸钾作为氧化剂，和任选地（2）在氧气存在下作为共活化剂的蒽醌-β-磺酸钠，其中10至90 重量的引发剂在聚合开始时存在，并且在聚合过程中加入剩余物，并且在一定程度的转化后，还原剂是剩余添加的氧化还原体系（1）的唯一组分。