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13 条记录 (耗时 0.02 秒)

    Polymerization of chloroprene
    1.
    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。

    Thermoplastic moulding materials made from vinyl chloride polymers and graft polymers and having improved properties
    5.
    发明授权
    Thermoplastic moulding materials made from vinyl chloride polymers and graft polymers and having improved properties 失效
    由氯乙烯聚合物和接枝聚合物制成并具有改进性能的热塑性成型材料

    公开(公告)号：US4778850A

    公开(公告)日：1988-10-18

    申请号：US64410

    申请日：1987-06-22

    申请人： Christian Lindner ,  Hartmuth Buding ,  Hans-Eberhard Braese ,  Rudolf Casper ,  Karl-Heinz Ott

    发明人： Christian Lindner ,  Hartmuth Buding ,  Hans-Eberhard Braese ,  Rudolf Casper ,  Karl-Heinz Ott

    IPC分类号： C08L9/02 ,  C08L21/00 ,  C08L23/08 ,  C08L27/00 ,  C08L27/06 ,  C08L51/04 ,  C08L73/00

    CPC分类号： C08L27/06 ,  C08L51/04 ,  C08L9/02

    摘要： A: Thermoplastic moulding materials made from a vinyl chloride homopolymer or copolymer containing at least 50% by weight of vinyl choloride units,B: a graft polymer, prepared by graft polymerization ofB1: 50 to 85 parts by weight of a mixture of at least two of the monomers styrene, acrylonitrile, methyl methacrylate and .alpha.-methyl styrene onB2: 50 to 15 parts by weight of an at least partially crosslinked butadiene or acrylate rubber having average particle diameters of 0.08 to 1 .mu.m, andC: a hydrogenated nitrile rubber in which the nitrile group content is 50 to 28% by weight and the degree of hydrogenation is greater than 50%, andD: optionally, a non-crosslinked, rubber-like ethylene or alkyl acrylate polymer, optionally containing copolymerized up to 70% by weight of vinyl acetate, acrylonitrile, methyl methacrylate or carbon monoxide,E: optionally at least partially crosslinked, rubber-like ethylene or alkyl acrylate polymer, optionally containing copolymerized up to 50% by weight of vinyl acetate, acrylonitrile, methyl methacrylate or carbon monoxide.

    摘要翻译： A：由含有至少50重量％的乙烯基氯化物单元的氯乙烯均聚物或共聚物制成的热塑性成型材料B：接枝聚合物，其通过接枝聚合B1：50至85重量份的至少 两种单体苯乙烯，丙烯腈，甲基丙烯酸甲酯和α-甲基苯乙烯在B2上：50至15重量份的平均粒径为0.08至1μm的至少部分交联的丁二烯或丙烯酸酯橡胶，和C：氢化 丁腈橡胶，其中腈基含量为50〜28重量％，氢化度大于50％，D：任选地，非交联橡胶状乙烯或丙烯酸烷基酯聚合物，任选地含有至多 70重量％的乙酸乙烯酯，丙烯腈，甲基丙烯酸甲酯或一氧化碳，E：任选地至少部分交联的橡胶状乙烯或丙烯酸烷基酯聚合物，任选地含有最多达50个 乙酸乙烯酯，丙烯腈，甲基丙烯酸甲酯或一氧化碳的重量％。

    Process for the production of 2,3-dichlorobutadiene-(1,3)
    7.
    发明授权
    Process for the production of 2,3-dichlorobutadiene-(1,3) 失效
    2,3-二氯丁二烯 - （1,3）

    公开(公告)号：US4629816A

    公开(公告)日：1986-12-16

    申请号：US471183

    申请日：1983-03-01

    申请人： Josef Heinrich ,  Rudolf Casper ,  Manfred Beck

    发明人： Josef Heinrich ,  Rudolf Casper ,  Manfred Beck

    IPC分类号： B01J31/02 ,  C07B61/00 ,  C07C17/00 ,  C07C17/25 ,  C07C21/20 ,  C07C67/00 ,  C07C17/34

    CPC分类号： C07C17/25

    摘要： 2,3-Dichlorobutadiene-(1,3) is obtained from 2,3,4-trichlorobutene-1 by dehydrohalogenation in the presence of a phase transfer catalyst, an inhibitor and oxygen according to an improved process in which the aqueous solution of an alkali metal hydroxide is added to the mixture of trichlorobutene, catalyst, inhibitor and optionally water, and the reaction is carried out at a temperature of from -10.degree. to +60.degree. C. under an inert gas which contains from 0.1 to 8% by weight of oxygen.

    摘要翻译： 根据改进的方法，在相转移催化剂，抑制剂和氧的存在下，通过脱卤化氢由2,3,4-三氯丁烯-1获得2,3-二氯丁二烯 - （1,3），其中将 将碱金属氢氧化物加入到三氯丁烷，催化剂，抑制剂和任选的水的混合物中，反应在-10℃至+ 60℃的温度下进行，惰性气体含有0.1至8％的 氧气重量

    Absorber with suction pump
    8.
    发明授权
    Absorber with suction pump 失效
    吸气器带抽水泵

    公开(公告)号：US4188196A

    公开(公告)日：1980-02-12

    申请号：US862088

    申请日：1977-12-19

    申请人： Rudolf Casper ,  Roland Grober ,  Karl-Heinz Schabel ,  Klaus Siemer

    发明人： Rudolf Casper ,  Roland Grober ,  Karl-Heinz Schabel ,  Klaus Siemer

    IPC分类号： G01F11/02 ,  G01N1/22 ,  G01N1/24 ,  G01N30/00 ,  B01D53/04

    CPC分类号： G01N1/2214 ,  G01N1/24 ,  G01N2001/2223

    摘要： In order to control noxious substances in the air, the air to be monitored is continuously drawn through an absorber. An absorber with a suction pump connected downstream is used for this purpose. A particularly small and compact device composed of an absorber and suction pump may be obtained by forming the inlet valve and outlet valve of the suction pump as O-ring disc valves and by providing the pump drive with a light barrier.

    摘要翻译： 为了控制空气中的有害物质，待监测的空气被连续地吸入吸收器。 为此，使用具有连接在下游的抽吸泵的吸收器。 通过将抽吸泵的入口阀和出口阀形成为O形圈阀，并且通过为泵驱动器提供光屏障，可以获得由吸收器和抽吸泵组成的特别小型紧凑的装置。

    Thermoplastic moulding compositions of ABS and hydrogenated nitrile rubber
    10.
    发明授权
    Thermoplastic moulding compositions of ABS and hydrogenated nitrile rubber 失效
    ABS和氢化丁腈橡胶的热塑性成型组合物

    公开(公告)号：US4857591A

    公开(公告)日：1989-08-15

    申请号：US65024

    申请日：1987-06-22

    申请人： Herbert Eichenauer ,  Hartmuth Buding ,  Joachim Doring ,  Rudolf Casper ,  Karl-Heinz Ott

    发明人： Herbert Eichenauer ,  Hartmuth Buding ,  Joachim Doring ,  Rudolf Casper ,  Karl-Heinz Ott

    IPC分类号： C08L25/08 ,  C08L33/04 ,  C08L33/12 ,  C08L33/20 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L55/00 ,  C08L55/02

    CPC分类号： C08L51/04 ,  C08L55/02

    摘要： Thermoplastic moulding compositions consisting ofI. 75 to 99.5% by weight of a polymer ofA. 0 to 95% by weight, 95% or less by weight; of a graft copolymer prepared by grafting polymerization ofA.1 5 to 95% by weight of a mixture ofA.1.1 50 to 95% by weight of styrene, .alpha.-methylstyrene, nuclear-substituted styrene, methyl methacrylate or mixtures thereof andA.1.2 50 to 5% by weight of (meth)acrylonitrile, methyl methacrylate, maleic anhydride, N-substituted maleimide or mixtures thereof onA.2 95 to 5% by weight of a rubber with a glass transition temperature Tg or

    摘要翻译： 热塑性成型组合物由I组成，重量百分比为75％至99.5％的聚合物，重量百分比为重量百分比为95％ 通过接枝A.1.5至95重量％的A.1.1 50至95重量％的苯乙烯，α-甲基苯乙烯，核取代的苯乙烯，甲基丙烯酸甲酯或其混合物的混合物和A.1.1的混合物制备的接枝共聚物 .1.2在A.2的95至5重量％的玻璃化转变温度Tg或0℃的橡胶中，50至5重量％的（甲基）丙烯腈，甲基丙烯酸甲酯，马来酸酐，N-取代的马来酰亚胺或其混合物 C.和B.100至5重量％的B.1的热塑性聚合物95至50重量％的苯乙烯，α-甲基苯乙烯，核取代的苯乙烯或甲基丙烯酸甲酯或其混合物，B.2-5至50 （甲基）丙烯腈，甲基丙烯酸甲酯，马来酸酐，N-取代的马来酰亚胺或其混合物的重量％。 25〜0.5重量％的氢化丁腈橡胶。