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    Impact-resistant thermoplastic molding material and its use
    1.
    发明授权
    Impact-resistant thermoplastic molding material and its use 失效
    耐冲击热塑性材料及其应用

    公开(公告)号：US5112921A

    公开(公告)日：1992-05-12

    申请号：US447508

    申请日：1989-12-07

    申请人： Hans-Dieter Schwaben ,  Rainer Schlichtmann ,  Hubert Kindler ,  Peter Klaerner ,  Hans Mittnacht

    发明人： Hans-Dieter Schwaben ,  Rainer Schlichtmann ,  Hubert Kindler ,  Peter Klaerner ,  Hans Mittnacht

    IPC分类号： C08F279/00 ,  C08F279/02 ,  C08L25/06 ,  C08L51/04

    CPC分类号： C08F279/02 ,  C08L25/06 ,  C08L51/04

    摘要： An impact-resistant thermoplastic molding material which contains, based in each case on A+B, from 80 to 50% by weight of a hard matrix A of polystyrene having a molecular weight M.eta. of from 150,000 to 200,000 and from 50 to 20% by weight of a soft phase B which is uniformly distributed in the hard matrix and has a median particle diameter d.sub.50 (volume average) of from 1 to 10 .mu.m, and can be obtained by polymerizing styrene in the presence of an elastomeric grafting base, advantageously has a molecular weight of the grafted branches of from 1.1 to 1.35 times the molecular weight of the hard matrix, and the degree of grafting is from 50 to 100%.

    摘要翻译： 一种耐冲击热塑性成型材料，其包含基于A + B的每种情况，80至50重量％的分子量和上限＆amp; M等于150,000至200,000和50至20的聚苯乙烯硬质基质A 软质相B的重量百分数均匀分布在硬质基体中，中值粒径d50（体积平均）为1〜10μm，可以通过在弹性体接枝基质的存在下聚合苯乙烯而得到 有利地，接枝分子的分子量为硬质基质分子量的1.1〜1.35倍，接枝度为50〜100％。

    Process for the continuous preparation of rubber-modified polymers of vinylaromatics
    2.
    发明授权
    Process for the continuous preparation of rubber-modified polymers of vinylaromatics 失效
    连续制备乙烯基芳烃橡胶改性聚合物的方法

    公开(公告)号：US4427826A

    公开(公告)日：1984-01-24

    申请号：US273689

    申请日：1981-06-15

    申请人： Adolf Echte ,  Hermann Gausepohl ,  Hermann P. Hofmann ,  Hans Mittnacht

    发明人： Adolf Echte ,  Hermann Gausepohl ,  Hermann P. Hofmann ,  Hans Mittnacht

    IPC分类号： C08F2/38 ,  C08F4/00 ,  C08F279/02

    CPC分类号： C08F279/02

    摘要： A process, carried out without a diluent or in solution, in more than 2 reaction zones, for the continuous preparation of rubber-modified polymers of vinylaromatics, wherein a monomeric aromatic vinyl compound and an elastomeric polymer, in an amount of from 3 to 16% by weight based on the monomer, are polymerized, in the absence of a free radical initiator, but in the presence of a mercaptan as a chain transfer agent, at from 80.degree. to 180.degree. C. in a first reaction zone, with stirring, up to a maximum monomer conversion, U.sub.max, given by the equationU.sub.max =K-1where K is the amount of rubber in % by weight based on monomer, and, in a second reaction zone, polymerization is continued, with stirring, to a conversion of up to about 50% by weight, after which a chain transfer agent is introduced in an amount of from 0.01 to 0.2% by weight, based on vinyl-aromatic monomer, and polymerization is continued, if appropriate in more than one reaction zone, up to a monomer conversion of less than 85% by weight. The polymer is treated in a devolatilization zone to remove vinyl-aromatic monomer and solvent, if any, and these constituents are recycled to the process. The process produces products which exhibit good gloss coupled with good mechanical properties, and which can be employed for conventional applications.

    摘要翻译： 用于连续制备乙烯基芳族化合物的橡胶改性聚合物的方法，其中没有稀释剂或在溶液中，在多于2个反应区中进行，其中单体芳族乙烯基化合物和弹性体聚合物的量为3-16 基于单体的重量％在不存在自由基引发剂的情况下，在作为链转移剂的硫醇存在下，在第一反应区中在80-180℃下进行聚合，同时搅拌 ，达到最大单体转化率，Umax，由方程式Umax = K-1给出，其中K是基于单体的以重量％计的橡胶量，并且在第二反应区中，在搅拌下继续聚合至 高达约50重量％的转化率，之后以基于乙烯基芳族单体的0.01至0.2重量％的量引入链转移剂，并且如果适当的话在多于一个反应中继续聚合 区域，单体转化率小于 85重量％。 将聚合物在脱挥发区进行处理以除去乙烯基芳族单体和溶剂（如果有的话），并将这些组分再循环到该方法中。 该方法产生具有良好光泽性和良好机械性能的产品，并且其可用于常规应用。

    Preparation of branched block copolymers
    3.
    发明授权
    Preparation of branched block copolymers 失效

    公开(公告)号：US4418180A

    公开(公告)日：1983-11-29

    申请号：US296849

    申请日：1981-08-27

    申请人： Gerhard Heinz ,  Burghard Schmitt ,  Ingo H. Dorn ,  Hermann Gausepohl ,  Karl Gerberding ,  Rudolf H. Jung ,  Hans Mittnacht ,  Jurgen Pohrt ,  Paul Witimer

    发明人： Gerhard Heinz ,  Burghard Schmitt ,  Ingo H. Dorn ,  Hermann Gausepohl ,  Karl Gerberding ,  Rudolf H. Jung ,  Hans Mittnacht ,  Jurgen Pohrt ,  Paul Witimer

    IPC分类号： C08F297/04

    CPC分类号： C08F297/044

    摘要： A process for the preparation of branched block copolymers of from 60 to 95% by weight of a monovinyl-aromatic monomer and from 40 to 5% by weight of a conjugated diene by polymerizing the monomers in an inert solvent in the presence of a monolithium-hydrocarbon as the initiator, wherein, in a first process stage (a), from 50 to 80, or where necessary at most 90, % by weight of the total amount of monovinyl-aromatic compound are polymerized to virtually complete conversion in the presence of a relatively small amount of the monolithium-hydrocarbon. This stage is carried out by starting with from 30 to 70% by weight of the vinyl-aromatic monomer and adding from 70 to 30% by weight in the feed, during the polymerization, in such a way that the polymerization temperature, which at the start of the polymerization is from 30.degree. to 40.degree. C., is kept at from 45.degree. to 70.degree. C., with use of reflux cooling. After all the monomer feed has been added, the reaction temperature is lowered to 30.degree.-40.degree. C. by evaporative cooling. In a second process stage (b), an additional amount of initiator is added to the reaction solution, after which from 1 to 30% by weight of the total amount of monovinyl-aromatic monomer can be added, the sum of the amounts of monovinyl-aromatic monomer added in the first and second process stages being at most 90% by weight of the total amount of monovinyl-aromatic monomer. The monovinyl-aromatic monomer added in the second process stage is polymerized to virtually complete conversion, employing the temperature profile described for stage (a). In process stage (c), the remainder of the monovinyl-aromatic monomer and all of the conjugated diene are added, at least predominantly in the form of a mixture, and polymerized so that the reaction temperature does not rise above 90.degree.-110.degree. C. Finally, after virtually complete conversion of the monomers, and preferably without prior cooling, a suitable liquid polyfunctional coupling agent is run in undiluted and the mixture of the linear block copolymers obtained, which still contain active terminal lithium-carbon bonds, is coupled, with stirring, to form branched block copolymers. The products prepared according to the invention are used for injection molding.

    Impact resistant thermoplastic molding composition and use thereof
    6.
    发明授权
    Impact resistant thermoplastic molding composition and use thereof 失效
    耐冲击热塑性成型用组合物及其用途

    公开(公告)号：US5011871A

    公开(公告)日：1991-04-30

    申请号：US323753

    申请日：1989-03-15

    申请人： Rainer Bueschl ,  Adolf Echte ,  Konrad Schulte ,  Hans Mittnacht

    发明人： Rainer Bueschl ,  Adolf Echte ,  Konrad Schulte ,  Hans Mittnacht

    IPC分类号： C08F279/02

    CPC分类号： C08F279/02

    摘要： An impact resistance thermoplastic molding composition contains, each percentage being based on A+B, from 80 to 55% by weight of a hard matrix A of a copolymer containing at least 95% by weight of an aromatic vinyl monomer a.sub.11 of from 8 to 10 carbon atoms and at least one comonomer a.sub.12 in a proportion of 0.1 to 5% by weight, based on A, and from 45 to 20% by weight of a soft phase B which, uniformly dispersed in the hard matrix, has an average particle diameter d.sub.50 (volume average) of from 3.5 to 9 .mu.m and is obtainable by polymerization of the mixture of monomers a.sub.11 and a.sub.12 in the presence of an elastomer (rubber) and subsequent isolation of the useful product, wherein the comonomer a.sub.12 has the general formula I ##STR1## where X is --OR.sup.2, --COOR.sup.2 or --CONHR.sup.3,R.sup.1 is hydrogen or methyl andR.sup.2 and R.sup.3 are each alkyl of from 1 or 2 to 10 carbon atoms with at least one OH or epoxy group or at least one other polar group.

    摘要翻译： 抗冲击性热塑性成型组合物含有以百分比为基准的A + B，80〜55重量％的含有至少95重量％的芳族乙烯基单体a11为8〜10的共聚物的硬质基质A 碳原子和至少一种共聚单体a 12，其比例为0.1至5重量％，基于A，和45至20重量％的均匀分散在硬质基质中的软相B具有平均粒径 d50（体积平均）为3.5至9μm，可通过在弹性体（橡胶）存在下聚合单体a11和a12的混合物，随后分离有用的产物而获得，其中共聚单体a12具有通式 （I）其中X是-OR2，-COOR2或-CONHR3，R1是氢或甲基，R2和R3各自为具有1或2至10个碳原子的烷基，具有至少一个OH或环氧基团或在 至少另一个极地组。

    Impact-resistant thermoplastic molding materials with improved stress-cracking resistance
    7.
    发明授权
    Impact-resistant thermoplastic molding materials with improved stress-cracking resistance 失效
    耐冲击热塑性成型材料具有改善的耐应力开裂性

    公开(公告)号：US4330641A

    公开(公告)日：1982-05-18

    申请号：US204527

    申请日：1980-11-06

    申请人： Adolf Echte ,  Hermann Gausepohl ,  Helmut Jenne ,  Hans Mittnacht

    发明人： Adolf Echte ,  Hermann Gausepohl ,  Helmut Jenne ,  Hans Mittnacht

    IPC分类号： C08F255/06 ,  C08F279/02 ,  C08F279/04 ,  C08F279/06

    CPC分类号： C08F255/06 ,  C08F279/02

    摘要： Thermoplastic molding materials which contain a copolymer which has been made impact-resistant with a rubber. The copolymer is produced by polymerizing a mixture of a monovinyl-aromatic compound and an acrylic acid derivative or methacrylic acid derivative in the presence of a rubber. The folding materials contain a specific proportion of soft component. The diameter of the particles of the soft component, and the swelling index of the soft component, lie within a specific range, and the tensile strength of the molding material is higher than the yield strength.

    摘要翻译： 含有已经用橡胶抗冲击的共聚物的热塑性成型材料。 共聚物通过在橡胶存在下聚合单乙烯基 - 芳族化合物和丙烯酸衍生物或甲基丙烯酸衍生物的混合物来制备。 折叠材料含有特定比例的软组分。 软组分的颗粒直径和软组分的溶胀指数在特定范围内，成型材料的拉伸强度高于屈服强度。