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72 条记录 (耗时 0.023 秒)

    Water-absorbing, essentially water-free membrane for reagent substrates and methods of preparing the same
    1.
    发明授权
    Water-absorbing, essentially water-free membrane for reagent substrates and methods of preparing the same 失效
    用于试剂底物的吸水性基本上不含水的膜及其制备方法

    公开(公告)号：US4780411A

    公开(公告)日：1988-10-25

    申请号：US774633

    申请日：1985-09-11

    申请人： Karl-Erwin Piejko ,  Bruno Bomer ,  Herbert Bartl ,  Georg Frank

    发明人： Karl-Erwin Piejko ,  Bruno Bomer ,  Herbert Bartl ,  Georg Frank

    IPC分类号： B01D69/14 ,  G01N31/22 ,  G01N33/52 ,  G01N21/77 ,  B05D3/02 ,  B32B5/16

    CPC分类号： B01D69/141 ,  G01N33/52 ,  Y10S435/805 ,  Y10T428/254

    摘要： In a reagent strip for the dry-chemical detection of a component of an aqueous sample solution comprising a detection reagent in a membrane, the improvement wherein the membrane is an essentially anhydrous, but water-absorbing, membrane for a reagent substrate in an analytical agent for the dry-chemical detection of a component of an aqueous sample solution, comprising at least one hydrophobic film-forming, water insoluble organic polymer in which at least one hydrophilic organic polymer is dispersed as discrete particles. The reagent can be incorporated into the membrane when produced or can later be applied as by impregnation. The membrane performs as well as or better than multi-layer strips.

    摘要翻译： 在用于干法化学检测包含膜中的检测试剂的水样品溶液的组分的试剂条中，其中膜是基本上无水但吸水的用于分析试剂中的试剂底物的膜 用于干法化学检测水样品溶液的组分，其包含至少一种形成疏水膜的水不溶性有机聚合物，其中至少一种亲水性有机聚合物作为离散颗粒分散。 试剂可以在制造时加入到膜中，或者随后可以通过浸渍施用。 膜的性能与多层条相同或更好。

    Process for the preparation of aliphatic polycarbonates with alkoxy silane initiator
    3.
    发明授权
    Process for the preparation of aliphatic polycarbonates with alkoxy silane initiator 失效
    用烷氧基硅烷引发剂制备脂族聚碳酸酯的方法

    公开(公告)号：US4879367A

    公开(公告)日：1989-11-07

    申请号：US212817

    申请日：1988-06-29

    申请人： Karl-Erwin Piejko ,  Bruno Bomer ,  Hans-Josef Buysch ,  Michael Hullmann

    发明人： Karl-Erwin Piejko ,  Bruno Bomer ,  Hans-Josef Buysch ,  Michael Hullmann

    IPC分类号： C08G64/00 ,  C08G64/02 ,  C08G64/20 ,  C08G64/30

    CPC分类号： C08G64/30 ,  C08G64/0208

    摘要： Process for the preparation of aliphatic polycarbonates by polymerizing cyclic aliphatic carbonates in the presence of initiators and/or catalysts, in which the initiators used are alkoxy silanes of the formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 independently of one another represent a C.sub.1 -C.sub.4 -alkyl radical, n is an interger from 1 to 6 andR.sub.4 denotes an n-valent, optionally substituted, aliphatic hydrocarbon radical,and the catalysts used are the nucleophilic catalysts which are known from group transfer polymerization.

    摘要翻译： 用于通过在引发剂和/或催化剂存在下聚合环状脂肪族碳酸酯来制备脂族聚碳酸酯的方法，其中使用的引发剂是式I的烷氧基硅烷，其中R 1，R 2和R 3彼此独立地表示 C 1 -C 4 - 烷基，n是1至6的整数，R 4表示n价任选取代的脂族烃基，所用的催化剂是从组转移聚合中已知的亲核催化剂。

    Test aids and method for the preparation thereof
    6.
    发明授权
    Test aids and method for the preparation thereof 失效
    试剂及其制备方法

    公开(公告)号：US4800169A

    公开(公告)日：1989-01-24

    申请号：US74238

    申请日：1987-07-16

    申请人： Bruno Bomer ,  Karl-Erwin Piejko

    发明人： Bruno Bomer ,  Karl-Erwin Piejko

    IPC分类号： G01N33/50 ,  C12Q1/26 ,  G01N21/77 ,  G01N31/22 ,  G01N33/66 ,  G01N21/03 ,  C12Q1/28

    CPC分类号： C12Q1/26

    摘要： A process for preparing test aids for detecting substances to be analyzed by means of redox reactions containing single component oxidation indicators as the indicator substance in which oxidizable aromatic amine or hydrazino compounds, which are not capable of coupling with themselves, are added as decolorants.

    摘要翻译： 作为脱色剂，添加了能够通过含有单成分氧化指示剂的氧化还原反应来检测待测物质的方法，所述单组分氧化指示剂作为指示物质，其中不能与其自身偶联的可氧化芳族胺或肼基化合物作为指示物质。

    Thermoplastic polycarbonate molding composition containing a rubber free copolymer and a combination of graft polymers
    7.
    发明授权
    Thermoplastic polycarbonate molding composition containing a rubber free copolymer and a combination of graft polymers 有权
    含有无橡胶的共聚物和接枝聚合物的组合的热塑性聚碳酸酯模塑组合物

    公开(公告)号：US06503628B1

    公开(公告)日：2003-01-07

    申请号：US09538649

    申请日：2000-03-30

    申请人： Venkatarayaloo Janarthanan ,  Roland P. Brassard ,  Karl-Erwin Piejko ,  Sara D. Graham

    发明人： Venkatarayaloo Janarthanan ,  Roland P. Brassard ,  Karl-Erwin Piejko ,  Sara D. Graham

    IPC分类号： B32B2736

    CPC分类号： C08L69/00 ,  C08L25/08 ,  C08L33/08 ,  C08L51/04 ,  C08L55/02 ,  Y10T428/31507 ,  C08L2666/02

    摘要： A thermoplastic molding composition comprising, (A) an aromatic polycarbonate; (B) a single rubber-free copolymer, e.g., of styrene and acrylonitrile; (C) a first graft polymer; (D) a second graft polymer; and (E) a wax, is described. The single rubber-free copolymer (B), and first and second graft polymers (C) and (D) are prepared from a specific selection of graft phases and graft bases. The graft base of the first graft polymer (C) comprises a crosslinked, particulate elastomer having an average particle diameter of 0.05 to 0.5 microns. The second graft polymer (D) has an average particle diameter of 0.6 to 20 microns. The thermoplastic compositions of the present invention are well suited for the preparation of molded articles that may be metalized over at least a portion of their surface by means of an electroless plating process. Such electroless plated articles are characterized as having improved heat resistance and adhesion of the metal plating.

    摘要翻译： 一种热塑性模塑组合物，其包含：（A）芳族聚碳酸酯; （B）单一无橡胶共聚物，例如苯乙烯和丙烯腈; （C）第一接枝聚合物; （D）第二接枝聚合物; 和（E）蜡。 单一无橡胶共聚物（B）和第一和第二接枝聚合物（C）和（D）由接枝相和接枝基材的特定选择制备。 第一接枝聚合物（C）的接枝基底包含平均粒径为0.05至0.5微米的交联的颗粒弹性体。 第二接枝聚合物（D）的平均粒径为0.6〜20微米。 本发明的热塑性组合物非常适用于通过化学镀方法制备可在其表面的至少一部分上金属化的模塑制品。 这种无电镀制品的特征在于具有改善的耐热性和金属镀层的粘合性。

    Thermoplastic compositions of polyurethanes and partly crosslinked alkyl acrylate copolymers
    10.
    发明授权
    Thermoplastic compositions of polyurethanes and partly crosslinked alkyl acrylate copolymers 失效
    聚氨酯和部分交联丙烯酸酯共聚物的热塑性组合物

    公开(公告)号：US5237001A

    公开(公告)日：1993-08-17

    申请号：US713663

    申请日：1991-06-11

    申请人： Karl-Erwin Piejko ,  Ernst Orthmann ,  Christian Lindner ,  Hans-Eberhard Braese

    发明人： Karl-Erwin Piejko ,  Ernst Orthmann ,  Christian Lindner ,  Hans-Eberhard Braese

    IPC分类号： C08L25/14 ,  C08F265/04 ,  C08F279/04 ,  C08L33/04 ,  C08L33/06 ,  C08L73/00 ,  C08L75/00 ,  C08L75/04

    CPC分类号： C08F265/04 ,  C08F279/04 ,  C08L33/06 ,  C08L75/04

    摘要： The present invention is directed to a thermoplastic composition which is a blend of A) a thermoplastic polyurethane and B) an at least partly crosslinked alkyl acrylate copolymer of a C.sub.1-6 alkyl acrylate and a monomer selected from the group consisting of acrylonitrile, styrene, vinyl acetate, C.sub.1-6 alkyl methacrylates and mixtures thereof. The preferred compositions also contain copolymer selected from the group consisting ofC1) a thermoplastic graft product of a rubber component having a glass transition temperature below 0.degree. C., which serves as the graft base, and at least one graft monomer selected from the group consisting of styrene, .alpha.-methyl styrene, acrylonitrile an C.sub.1-6 alkyl methacrylate,C2) a rubber-free resin copolymer of styrene or .alpha.-methyl styrene with acrylonitrile,C3) mixtures thereof.

    摘要翻译： 本发明涉及一种热塑性组合物，其是A）热塑性聚氨酯和B）至少部分交联的丙烯酸C 1-6烷基酯与选自丙烯腈，苯乙烯， 乙酸乙烯酯，甲基丙烯酸C 1-6烷基酯及其混合物。 优选的组合物还包含共聚物，其选自C1）玻璃化转变温度低于0℃的橡胶组分的热塑性接枝产物，其用作接枝基质，和至少一种选自以下的接枝单体 由苯乙烯，α-甲基苯乙烯，丙烯腈和甲基丙烯酸C 1-6烷基酯组成，C2）苯乙烯或α-甲基苯乙烯与丙烯腈的无橡胶树脂共聚物，C3）其混合物。