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39 条记录 (耗时 0.018 秒)

    Stabilization of polyphenylene ether solutions
    11.
    发明授权
    Stabilization of polyphenylene ether solutions 失效
    聚苯醚溶液的稳定化

    公开(公告)号：US4496679A

    公开(公告)日：1985-01-29

    申请号：US531656

    申请日：1983-09-13

    申请人： Juergen Hambrecht ,  Rudi W. Reffert ,  Adolf Echte ,  Johann Swoboda

    发明人： Juergen Hambrecht ,  Rudi W. Reffert ,  Adolf Echte ,  Johann Swoboda

    IPC分类号： C08G65/46 ,  C08L71/04

    CPC分类号： C08G65/46

    摘要： A process for the preparation of high molecular weight polyphenylene ethers from alkyl-substituted monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a catalyst complex of a copper salt and an organic amine, subsequent stopping of the reaction and removal of the metal component of the catalyst by addition of chelating and/or salt-forming agents, wherein the polymer solution is treated with a compound having the general structure: ##STR1## where R.sup.2 and R.sup.3 can be identical or different and each is OH, NH.sub.2, NHR.sup.5, where R.sup.5 is alkyl or cycloalkyl, or SH, and where R.sup.1 and R.sup.4 are identical or different, being hydrogen, alkyl, cycloalkyl, aryl, carbonyl, carboxyl, carboxyalkyl or nitrile, and can be linked to form a ring, advantageously in an amount of from 0.1 to 100 mmoles and advantageously in from 1 to 20% strength aqueous solutions.

    摘要翻译： 在铜盐和有机胺的催化剂络合物存在下，通过与氧的氧化偶联反应从烷基取代的一元酚制备高分子量聚苯醚的方法，随后停止反应和除去金属 通过加入螯合和/或成盐剂的催化剂组分，其中聚合物溶液用具有以下通式结构的化合物处理：其中R 2和R 3可以相同或不同，并且各自为OH，NH 2，NHR 5 ，其中R 5是烷基或环烷基或SH，并且其中R 1和R 4相同或不同，是氢，烷基，环烷基，芳基，羰基，羧基，羧基烷基或腈，并且可以连接形成环，有利地在 量为0.1至100毫摩尔，有利地为1至20％强度的水溶液。

    Thermoplastic molding compositions containing polycarbonate and a graft copolymer of resin-forming monomers on a rubber
    13.
    发明授权
    Thermoplastic molding compositions containing polycarbonate and a graft copolymer of resin-forming monomers on a rubber 失效
    含有聚碳酸酯和树脂形成单体在橡胶上的接枝共聚物的热塑性成型组合物

    公开(公告)号：US4603169A

    公开(公告)日：1986-07-29

    申请号：US722363

    申请日：1985-04-12

    申请人： Konrad Mitulla ,  Juergen Hambrecht ,  Adolf Echte ,  Johann Swoboda ,  Peter Siebel

    发明人： Konrad Mitulla ,  Juergen Hambrecht ,  Adolf Echte ,  Johann Swoboda ,  Peter Siebel

    IPC分类号： C08L51/04 ,  C08L69/00

    CPC分类号： C08L51/04 ,  C08L69/00 ,  Y10S525/902

    摘要： A thermoplastic molding material consists of a polycarbonate A and a graft copolymer B, the latter consisting of an elastomer (rubber) (b.sub.1) and a shell (b.sub.2) grafted onto the elastomer.The elastomer (b.sub.1) contains, as copolymerized units, from 35 to 100% by weight of a diene from the group consisting of the conjugated dienes of 4 to 5 carbon atoms, and can contain, as copolymerized units, from 0 to 65% by weight of a monomer from the group consisting of the alkyl acrylates or alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms.The shell (b.sub.2) is obtained in a conventional manner by successive polymerization of the monomers constituting the shell, in two process steps, in the presence of the elastomer (b.sub.1); in a first process step, from 10 to 90% by weight of a mixture of a vinylaromatic hydrocarbon and one or more ethylenically unsaturated monomers which differ from the said hydrocarbon, in a weight ratio of from 90:10 to 60:40, are first incorporated as copolymerized units, followed by the polymerization of from 90 to 10% by weight of a monomer from the group consisting of the alkyl acrylates or of the alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms.The molding material is used for the production of shaped articles.

    摘要翻译： 热塑性成型材料由聚碳酸酯A和接枝共聚物B组成，后者由接枝到弹性体上的弹性体（橡胶）（b1）和壳（b2）组成。 作为共聚单元，弹性体（b1）含有35〜100重量％的由4〜5个碳原子的共轭二烯组成的组的二烯，可以以共聚单位含有0〜65重量％ 由丙烯酸烷基酯或甲基丙烯酸烷基酯组成的组中的单体重量，其中烷基具有1至8个碳原子。 壳（b2）以常规方式通过在两个工艺步骤中在弹性体（b1）的存在下连续聚合构成壳的单体获得; 在第一工艺步骤中，以90:10至60:40的重量比为10至90重量％的乙烯基芳烃和一个或多个与所述烃不同的烯键式不饱和单体的混合物是第一 作为共聚单元引入，然后聚合90至10重量％的由丙烯酸烷基酯或甲基丙烯酸烷基酯组成的组的单体，其中烷基具有1至8个碳原子。 成型材料用于成型制品的生产。

    Production of molding materials containing polyphenylene ethers
    17.
    发明授权
    Production of molding materials containing polyphenylene ethers 失效
    生产含聚苯醚的成型材料

    公开(公告)号：US4436870A

    公开(公告)日：1984-03-13

    申请号：US400689

    申请日：1982-07-22

    申请人： Klaus Hinselmann ,  Herbert Naarmann ,  Adolf Echte ,  Eduard Heil ,  Albert Nikles ,  Rudi W. Reffert ,  Juergen Hambrecht

    发明人： Klaus Hinselmann ,  Herbert Naarmann ,  Adolf Echte ,  Eduard Heil ,  Albert Nikles ,  Rudi W. Reffert ,  Juergen Hambrecht

    IPC分类号： C08L7/00 ,  B29C35/00 ,  B29C45/00 ,  C08G65/46 ,  C08J3/00 ,  C08J3/20 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L71/00 ,  C08L71/12 ,  C08L101/00 ,  C08L71/04

    CPC分类号： C08J3/005 ,  C08G65/46 ,  C08L71/12 ,  Y10S525/905

    摘要： Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation.The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99:1 to 20:80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four working up stages.The evaporation is carried out in general at from 120.degree. to 280.degree. C. and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.

    摘要翻译： 含有高分子量聚苯醚的成型材料是通过多层蒸发而将有机溶剂中的聚苯醚与其它聚合物一起溶解的方法而制得的。 溶剂优选为包含烃类，卤代烃类，醚类或酯类的芳族化合物，另一种聚合物与聚苯醚的比率有利地为99:1至20:80重量份，另一个聚合物为 特别是可以用橡胶改性的苯乙烯或其同系物的均聚物或共聚物，多级蒸发方法优选包括不少于2个且不超过4个加工阶段。 蒸发通常在120℃至280℃和1至3,000毫巴的压力下进行，有利的是在有助于降低分压的助剂的存在下进行。 水和/或甲醇。

    Removal of the catalyst from polyphenylene ethers
    19.
    发明授权
    Removal of the catalyst from polyphenylene ethers 失效
    从聚苯醚中除去催化剂

    公开(公告)号：US4460764A

    公开(公告)日：1984-07-17

    申请号：US516383

    申请日：1983-07-21

    申请人： Rudi W. Reffert ,  Juergen Hambrecht ,  Adolf Echte ,  Hans H. Schuster ,  Hermann Dreher

    发明人： Rudi W. Reffert ,  Juergen Hambrecht ,  Adolf Echte ,  Hans H. Schuster ,  Hermann Dreher

    IPC分类号： C08G65/46 ,  C08G65/44

    CPC分类号： C08G65/46

    摘要： In the preparation of a high molecular weight polyphenylene ether from a monohydric phenol by an oxidative coupling reaction with oxygen in the presence of a catalyst complex obtained from a metal salt and an organic amine and in the presence of a solvent, and isolation of the metal ion component of the catalyst from the polyphenylene ether solution by means of a complex-forming or chelate-forming compound, the catalyst is removed by a method wherein complex formation and isolation of the metal ion component of the catalyst are carried out in an aqueous medium in the presence of from 0.1 to 5,000 mg of an anionic or non-ionic surfactant.

    摘要翻译： 在由金属盐和有机胺获得的催化剂配合物的存在下和在溶剂的存在下，通过与氧的氧化偶联反应从一元酚制备高分子量聚苯醚，并分离金属 通过复合物形成或螯合形成化合物从聚苯醚溶液中除去催化剂的离子组分，通过催化剂的金属离子组分的复合形成和分离在水性介质中进行的方法除去催化剂 在0.1至5,000mg阴离子或非离子表面活性剂的存在下。

    Continuous preparation of rubber-modified polymers of vinyl-aromatics
    20.
    发明授权
    Continuous preparation of rubber-modified polymers of vinyl-aromatics 失效
    连续制备乙烯基芳烃的橡胶改性聚合物

    公开(公告)号：US4567232A

    公开(公告)日：1986-01-28

    申请号：US650568

    申请日：1984-09-13

    申请人： Adolf Echte ,  Hermann Gausepohl ,  Juergen Hambrecht ,  Karl Gerberding

    发明人： Adolf Echte ,  Hermann Gausepohl ,  Juergen Hambrecht ,  Karl Gerberding

    IPC分类号： C08F2/02 ,  C08F2/06 ,  C08F279/02 ,  C08F291/02

    CPC分类号： C08F279/02 ,  C08F291/02

    摘要： A process for the continuous preparation of rubber-modified polymers of vinyl-aromatics, wherein a mixture which contains a monomeric aromatic vinyl compound and from 3 to 30% by weight, based on the monomer, of an elastomeric polymer, with or without a solvent, is polymerized, in the presence of a free radical initiator and in the presence or absence of a mercaptan as chain transfer agent, at from 80.degree. to 180.degree. C., with stirring, in a cascade of two or more isothermally operated reaction zones and of one or more additional reaction zones which can be operated isothermally or with a rising temperature profile in such a way that the residence time of the reactants in the first reaction zone is .ltoreq.35 minutes. The polymer obtained is freed from vinyl-aromatic monomer, and from any solvent, in a devolatilization zone. The product is useful for the production of injection moldings.

    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，其中含有单体芳族乙烯基化合物和基于单体的3-30重量％的弹性体聚合物的混合物，具有或不具有溶剂 在存在自由基引发剂的情况下，在作为链转移剂的硫醇存在或不存在下，在80-180℃下，在搅拌下，在两个或更多个等温操作的反应区的级联中聚合 以及一个或多个另外的反应区，其可以等温或以升高的温度曲线操作，使得反应物在第一反应区中的停留时间为35分钟。 获得的聚合物在脱挥发分区域中不含乙烯基芳族单体和任何溶剂。 该产品可用于生产注射成型品。