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    Process for the preparation of aliphatic polycarbonates with alkoxy silane initiator
    4.
    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。

    Photopolymerizable dental compositions
    5.
    发明授权
    Photopolymerizable dental compositions 失效
    光聚合牙科组合物

    公开(公告)号：US4437836A

    公开(公告)日：1984-03-20

    申请号：US413643

    申请日：1982-09-01

    申请人： Robert Schmitz-Josten ,  Carlhans Suling ,  Wolfgang Podszun ,  Bruno Bomer ,  Manfred Borgardt ,  Michael Walkowiak

    发明人： Robert Schmitz-Josten ,  Carlhans Suling ,  Wolfgang Podszun ,  Bruno Bomer ,  Manfred Borgardt ,  Michael Walkowiak

    IPC分类号： C08F2/00 ,  A61C13/087 ,  A61K6/083 ,  C08F2/44 ,  C08F2/50 ,  C08F4/00 ,  G03F7/031

    CPC分类号： A61K6/083 ,  C08F2/50 ,  G03F7/031 ,  Y10S430/12

    摘要： In a photopolymerizable composition comprising(a) at least one ethylenically unsaturated photopolymerizable monomer.(b) at least one photoinitiator selected from organic mono- and/or di-carbonyl compounds and(c) a photoactivator, the improvement which comprises employing as said photoactivator at least one alkylaminoarylsulphonyl compound of the formula ##STR1## in which R.sub.1 and R.sub.2 each independently is a hydrogen atom or an alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, aralkyl or alkaryl group which has 1 to 11 carbon atoms and is optionally substituted by at least one hydroxyl, amino, epoxy, urethane, urea, ether of ether group, or R.sub.1 and R.sub.2 together form a 3- to 6-membered ring, which optionally contains nitrogen, oxygen or sulphur as a hetero-atom,R.sub.3 independently of R.sub.1, has any of the meanings given for R.sub.1 or is a group of the formula ##STR2## R.sub.4 and R.sub.5 each independently is a hydrogen atom, an alkyl or alkenyl group which has 1 to 10 carbon atoms and is optionally substituted by halogen, or a halogen atom, orR.sub.4 and R.sub.5 are in ortho-positions relative to one another and, together with the aromatic nucleus, form a 4- to 8-membered ring, andX is an alkyl or alkenyl group which has 1 to 10 carbon atoms and is optionally substituted by a hydroxyl, amino, urethane, urea or ester group, or is a group of the formula ##STR3## wherein R.sub.6 and R.sub.7, independently of R.sub.1 and R.sub.2, have any of the meanings given above for R.sub.1 and R.sub.2.The compositions are especially useful for dental prostheses, fillings and coatings since they are not irritating to human tissue.

    摘要翻译： 在包含（a）至少一种烯属不饱和光聚合单体的可光聚合组合物中。 （b）至少一种选自有机单 - 和/或二 - 羰基化合物的光引发剂和（c）光活化剂，其改进包括使用至少一种式IMAMA的烷基氨基芳基磺酰基化合物作为所述光活化剂，其中R 1和R 2 各自独立地是氢原子或具有1至11个碳原子并且任选地被至少一个羟基，氨基，环氧基，氨基甲酸酯，尿素，醚的醚取代的烷基，烯基，环烷基，环烯基，芳基，芳烷基或烷芳基 基团或R 1和R 2一起形成3至6元环，其任选地含有氮，氧或硫作为杂原子，R 3独立地为R 1，具有对R 1给出的任何含义，或者是 R 4和R 5各自独立地为氢原子，具有1-10个碳原子并且任选被卤素或卤素原子取代的烷基或链烯基，或者R 4和R 5相对于一个位于邻位 另一个，连同芳香 形成4-至8-元环，X为具有1-10个碳原子并且任选被羟基，氨基，氨基甲酸酯，脲或酯基取代的烷基或链烯基，或是一组 其中R6和R7独立地为R1和R2，具有上面对R1和R2给出的任何含义。 组合物特别适用于牙齿假体，填充物和涂层，因为它们不刺激人体组织。

    Process for the production of aqueous polymer dispersions, the dispersions obtainable by this process and their use for the production of coatings
    8.
    发明授权
    Process for the production of aqueous polymer dispersions, the dispersions obtainable by this process and their use for the production of coatings 失效
    用于生产聚合物水分散体的方法，可通过该方法获得的分散体及其用于生产涂料的方法

    公开(公告)号：US4918129A

    公开(公告)日：1990-04-17

    申请号：US309815

    申请日：1989-02-13

    申请人： Joachim Probst ,  Josef Pedain ,  Bruno Bomer ,  Adolf Schmidt ,  Wolfhart Wieczorrek

    发明人： Joachim Probst ,  Josef Pedain ,  Bruno Bomer ,  Adolf Schmidt ,  Wolfhart Wieczorrek

    IPC分类号： C08J7/04 ,  B01F17/52 ,  C08F2/20 ,  C08F2/24 ,  C08F2/30 ,  C08F283/00

    CPC分类号： C08F2/30 ,  C08F283/00

    摘要： Aqueous polymer dispersions useful for coating substrates are prepared by polymerization of olefinically unsaturated monomers in aqueous medium in the presence of radical formers and hydrophilically modified, urethane-group-containing emulsifiers having an average molecular weight below 30,000, wherein the urethane-group-containing emulsifiers are oligourethanes having a branched molecular structure which(i) are produced from organic polyisocyanates and organic compounds containing isocyanate-reactive groups with the reactants containing hydrophilic groups or groups convertible into hydrophilic groups and which are monofunctional or difunctional to isocyanate addition reaction, with the molar ratio of monofunctional hydrophilic components to the corresponding difunctional components being at least 2:1, and which(ii) have a content of chemically incorporated hydrophilic groups sufficient to impart the oligourethane solubility or dispersibility in water, with the proviso that, on a statistical average, at least 2.2 terminally incorporated hydrophilic groups are present per molecule.

    摘要翻译： 可用于涂布基材的水性聚合物分散体是通过烯丙基不饱和单体在水性介质中在自由基形成剂和平均分子量低于30,000的亲水改性的含氨基甲酸酯基的乳化剂存在下聚合制备的，其中含氨基甲酸酯基的乳化剂 是具有支链分子结构的寡聚氨酯，其（i）由有机多异氰酸酯和含有异氰酸酯反应性基团的有机化合物产生，反应物含有可转化为亲水基团的亲水基团或基团，其与异氰酸酯加成反应是单官能的或双官能的， 单官能亲水性组分与相应的双官能组分的比例为至少2:1，并且（ii）具有化学引入的亲水基团的含量足以赋予低聚氨酯在水中的溶解度或分散性，条件是在sta 每个分子存在至少2.2个末端引入的亲水基团。