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    • 9. 发明授权
    • Polymerization of chloroprene
    • 氯丁二烯的聚合
    • US4786698A
    • 1988-11-22
    • US132975
    • 1987-12-15
    • Rudiger MuschEberhard MullerPeter WendlingWolfgang KonterGerhard Hohmann
    • Rudiger MuschEberhard MullerPeter WendlingWolfgang KonterGerhard Hohmann
    • C08F2/22C08F2/24C08F2/26C08F2/38C08F4/30C08F4/40C08F36/18
    • C08F36/18
    • Gel-free polychloroprene is obtained, at high monomer conversions, using a polymerization initiator comprising sodium dithionite or a mixture of sodium dithionite with formamidinesulphinic acid or with potassium peroxydisulphate or with formamidinesulphinic acid and potassium peroxodisulphate or with potassium peroxodisulphate and sodium anthraquinon-.beta.-sulphonate or with formamidinesulphinic acid and potassium peroxodisulphate and sodium anthraquinone-.beta.-sulphonate, and in the presence of oxygen and a chain transfer agent when 30 to 90% of the initiator is present at the commencement of polymerization and the remainder is added in portions during the polymerization, only further sodium dithionite being added at a conversion >60% in the case of an initiator combination, and when 20 to 80% by weight of the total amount of chain transfer agents is present before or at the commencement of polymerization and the remaining amount is added in one or more parts at monomer conversions of greater than 20%.
    • 使用包含连二亚硫酸钠或连二亚硫酸钠与甲酰胺亚磺酸钠或与过氧二硫酸钾或与甲脒亚磺酸和过氧二硫酸钾或与过氧二硫酸钾和蒽醌-β-磺酸钠的混合物的聚合引发剂,以高单体转化率获得无凝胶的聚氯丁二烯 或与甲酰胺亚磺酸和过二硫酸钾和蒽醌-β-磺酸钠反应,并且在氧和链转移剂存在下,当聚合开始时存在30至90%的引发剂,其余部分在 在引发剂组合的情况下,只有进一步的连二亚硫酸钠以60%的转化率加入,并且当在聚合开始之前或在聚合开始时存在20至80重量%的链转移剂的总量 在单体转化时,一个或多个部分加入量 大于20%。
    • 10. 发明授权
    • Process for the production of polymers having reactive end groups
    • 用于生产具有反应性端基的聚合物的方法
    • US4611037A
    • 1986-09-09
    • US762948
    • 1985-08-06
    • Rudiger MuschOskar NuykenStephen D. PaskAxel VischerMichael Walter
    • Rudiger MuschOskar NuykenStephen D. PaskAxel VischerMichael Walter
    • C08F4/00C08F2/04C08F2/06C08F2/38C08F4/06C08F8/24C08F10/00C08F16/00C08F16/12
    • C08F110/10
    • An improved process for the production of polymers having halogen end groups from cationically polymerizable monomers, the monomer being polymerized in an inert solvent at a temperature of from +10.degree. to -130.degree. C. using a catalyst system consisting of a metal halide and an organic halide, compounds corresponding to the following general formula being used as organic halides: ##STR1## wherein X represents a halogen atom;R.sub.1, R.sub.2, R.sub.3, represent C.sub.5 -C.sub.10 cycloalkyl, or a C.sub.1 -C.sub.20 straight- or branched-chain alkyl or ##STR2## wherein R.sub.4 and R.sub.5 represent C.sub.5 -C.sub.10 -cycloalkyl or a C.sub.1 -C.sub.20 straight- or branched-chain alkyl;and the organic halide has at least 5 carbon atoms and at most 50 carbon atoms and is in a concentration of from 10.sup.-1 to 10.sup.-6 mols per mol of monomer, while BX.sub.3, SnX.sub.4, TiX.sub.4, SbX.sub.5 or FeX.sub.3, wherein X is fluorine, chlorine, bromine or iodine, is used as metal halide in from 2 to 500 times molar excess, based on the organic halide.
    • 一种用于生产具有来自阳离子可聚合单体的卤素端基的聚合物的改进方法,所述单体在惰性溶剂中在+ 10℃至-130℃的温度下聚合,使用由金属卤化物和 有机卤化物,对应于以下通式的化合物用作有机卤化物:其中X表示卤素原子; R1,R2,R3代表C5-C10环烷基或C1-C20直链或支链烷基或者其中R4和R5代表C5-C10-环烷基或C1-C20直链或支链烷基 ; 并且有机卤化物具有至少5个碳原子和至多50个碳原子,并且每摩尔单体的浓度为10-1至10-6摩尔,而BX3,SnX4,TiX4,SbX5或FeX3,其中X为 氟,氯,溴或碘作为金属卤化物,以有机卤化物计,其摩尔过量为2至500倍。