利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

109 条记录 (耗时 0.03 秒)

    Process for the preparation of high molecular weight optionally branched polyarylenesulphides
    84.
    发明授权
    Process for the preparation of high molecular weight optionally branched polyarylenesulphides 失效
    用于制备高分子量任选支化的聚芳基硫化物的方法

    公开(公告)号：US4837301A

    公开(公告)日：1989-06-06

    申请号：US142186

    申请日：1988-01-06

    申请人： Volker Glock ,  Wolfgang Ebert ,  Rolf-Volker Meyer

    发明人： Volker Glock ,  Wolfgang Ebert ,  Rolf-Volker Meyer

    IPC分类号： C08G75/04

    CPC分类号： C08G75/04

    摘要： This invention relates to a process for the preparation of high molecular weight, optionally branched polyarylenesulphides from alkali metal sulphides, optionally in admixture with alkali metal hydrogen sulphides and aromatic dihalogen compounds, in a polar solvent in the presence of from 0.1 to 6.0 mol-%, preferably from 0.25 to 4.0 mol-%, of an aromatic monoalkoxy or monoalkylthio compound. The polyarylenesulphides obtained have reproducibly adjustable melt viscosities and molecular weights and are distinguished by their reduced tendency to corrosion.

    摘要翻译： 本发明涉及一种制备高分子量，任选支化的聚芳基硫化物的方法，其中碱金属硫化物任选与碱金属硫化氢和芳族二卤素化合物混合，在极性溶剂中，存在0.1-60mol％ ，优选0.25至4.0mol％的芳族单烷氧基或单烷硫基化合物。 获得的聚芳基硫化物具有可重复调节的熔体粘度和分子量，并且其腐蚀倾向降低。

    Process for the preparation of polyarylene sulphide with monohalogeno aromatic compound and mono mercapto compound
    85.
    发明授权
    Process for the preparation of polyarylene sulphide with monohalogeno aromatic compound and mono mercapto compound 失效
    用单卤代芳族化合物和单巯基化合物制备聚芳硫醚的方法

    公开(公告)号：US4760127A

    公开(公告)日：1988-07-26

    申请号：US893601

    申请日：1986-08-06

    申请人： Wolfgang Ebert ,  Karsten Idel

    发明人： Wolfgang Ebert ,  Karsten Idel

    IPC分类号： C08G75/0231 ,  C08G75/0254 ,  C08G75/06 ,  C08G75/16

    CPC分类号： C08G75/0254 ,  C08G75/0231

    摘要： The invention relates to a process for the preparation of optionally branched, high molecular weight polyarylene sulphides with melt viscosities which can be established within a defined range and low corrosion.These polyarylene sulphides have been obtained by reacting alkali metal sulphides, if appropriate mixed with alkali metal bisulphides and reaction accelerators, with dihalogenoaromatics and polyhalogenoaromatics, with the addition of monohalogen and monomercapto compounds.

    摘要翻译： 本发明涉及一种制备任选支化的高分子量聚亚芳基硫醚的方法，其熔融粘度可以在规定的范围内建立并具有低腐蚀性。 这些聚亚芳基硫化物是通过使碱金属硫化物与碱金属二硫化物和反应促进剂混合，与二卤代芳族化合物和多卤代芳族化合物反应，加入单卤素和单体巯基化合物而得到的。

    Polycarbonate for making extruded films that are virtually free of surface defects
    86.
    发明授权
    Polycarbonate for making extruded films that are virtually free of surface defects 有权
    用于制造实际上没有表面缺陷的挤出薄膜的聚碳酸酯

    公开(公告)号：US08084570B2

    公开(公告)日：2011-12-27

    申请号：US11977586

    申请日：2007-10-25

    申请人： Heinz Pudleiner ,  Wolfgang Ebert ,  Alexander Meyer ,  Klaus Meyer ,  Alexander Karbach ,  Franky Bruynseels

    发明人： Heinz Pudleiner ,  Wolfgang Ebert ,  Alexander Meyer ,  Klaus Meyer ,  Alexander Karbach ,  Franky Bruynseels

    IPC分类号： C08G64/00

    CPC分类号： C08J5/18 ,  C08G64/406 ,  C08J2369/00

    摘要： Linear polycarbonate resin virtually free of surface defects that impair the suitability of the resin for demanding optical application is disclosed. Also disclosed is a process for the manufacture of the resin. The surface defects included in the resin are in the form of transparent fluorescing particles, the particle count of which portion that are 15 and 250 μm in size, is up to 1.8 counts/g, said count being determined by exciting the residue remaining after filtering a solution of said polycarbonate in methylene chloride through a Teflon filter of 5 μm pore size at a wavelength of 400-440 nm, 25× overall magnification and illumination time of 40 millisec. The polycarbonate is suitable for making films of improved optical properties.

    摘要翻译： 公开了实质上没有表面缺陷的线性聚碳酸酯树脂，其损害了用于要求光学应用的树脂的适用性。 还公开了用于制造树脂的方法。 包含在树脂中的表面缺陷是透明荧光颗粒的形式，其尺寸为15和250μm的部分的颗粒数量达到1.8个计数/ g，所述计数通过激发过滤后剩余的残余物来确定 所述聚碳酸酯在二氯甲烷中的溶液通过孔径为5μm的Teflon过滤器，波长为400-440nm，总体放大倍数为25×，照射时间为40毫秒。 聚碳酸酯适用于制备改善光学性能的薄膜。

    PHASE BOUNDARY PROCESSES FOR PREPARING POLYCARBONATES
    88.
    发明申请
    PHASE BOUNDARY PROCESSES FOR PREPARING POLYCARBONATES 有权
    制备聚碳酸酯的相边界工艺

    公开(公告)号：US20090275709A1

    公开(公告)日：2009-11-05

    申请号：US12398243

    申请日：2009-03-05

    申请人： Wolfgang Ebert ,  Christian Kords ,  Rolf Bachmann ,  Lars Obendorf ,  Johan Vanden Eynde ,  Bert Ruytinx ,  Johann Seeba

    发明人： Wolfgang Ebert ,  Christian Kords ,  Rolf Bachmann ,  Lars Obendorf ,  Johan Vanden Eynde ,  Bert Ruytinx ,  Johann Seeba

    IPC分类号： C08F2/04

    CPC分类号： C08G64/24

    摘要： Continuous processes for preparing polycarbonates having a weight average molecular weight MW, of 15,000 to 200,000 g/mol, the processes comprising reacting a dihydroxydiarylalkane and phosgene in the presence of a catalyst in a phase boundary process comprising: continuously dispersing in a disperser an organic phase comprising at least a portion of the phosgene and a solvent suitable for the polycarbonate and an aqueous phase comprising the dihydroxydiarylalkane, water and an alkali solution present in an amount of 1.5 to 2.5 moles per mole of the dihydroxydiarylalkane, to form a mixture; reacting the mixture in a first reactor with a residence time of less than 0.5 seconds; further reacting the mixture in a second reactor with addition of further alkali solution and, optionally, a chain terminator; and effecting further condensation in a third reactor with addition of further alkali solution and, optionally, a chain terminator, in the presence of the catalyst.

    摘要翻译： 用于制备重均分子量MW为15,000至200,000g / mol的聚碳酸酯的连续方法，包括在相界过程中在催化剂存在下使二羟基二芳基烷烃和光气反应的方法包括：在分散器中连续分散有机相 包含至少一部分光气和适用于聚碳酸酯的溶剂和包含二羟基二芳基烷烃的水相，每摩尔二羟基二芳基烷烃存在的量为1.5至2.5摩尔的水和碱溶液形成混合物; 使混合物在第一反应器中反应，停留时间小于0.5秒; 在第二反应器中进一步使混合物反应，再加入另外的碱溶液和任选的链终止剂; 并在催化剂存在下，在第三反应器中进一步加入另外的碱溶液和任选的链终止剂。

    Production and use of polycarbonates with special purified, oligomeric epoxy resins
    90.
    发明申请
    Production and use of polycarbonates with special purified, oligomeric epoxy resins 审中-公开
    生产和使用聚碳酸酯与特殊纯化的低聚环氧树脂

    公开(公告)号：US20070088107A1

    公开(公告)日：2007-04-19

    申请号：US11545394

    申请日：2006-10-10

    申请人： Alexander Meyer ,  Frank Buckel ,  Wolfgang Ebert

    发明人： Alexander Meyer ,  Frank Buckel ,  Wolfgang Ebert

    IPC分类号： C08K5/15

    CPC分类号： C07B63/00 ,  C08G59/00 ,  C08L63/00 ,  C08L69/00 ,  C08L2666/22

    摘要： A thermoplastic composition having improved rheological and optical properties containing aromatic polycarbonate and an oligomeric epoxy resin is disclosed. The epoxy resin that conforms to formula (I) wherein R1, R2 mutually independently denote H, C1-C12 alkyl, cyclic C5-C12 alkyl, phenyl or benzyl groups and n is an integer of 0 to 20, contains no more than 0.1% water. A process for purifying the epoxy is also disclosed

    摘要翻译： 公开了一种具有改进的流变学和光学性质的含芳族聚碳酸酯和低聚环氧树脂的热塑性组合物。 符合式（I）的环氧树脂，其中R 1，R 2，2彼此独立地表示H，C 1 -C 12 烷基，环C 5 -C 12烷基，苯基或苄基，n是0至20的整数，含有不超过0.1％的水。 还公开了一种净化环氧树脂的方法