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    Pure, in particular catalyst-free polyurethanes
    4.
    发明授权
    Pure, in particular catalyst-free polyurethanes 失效
    纯的，特别是无催化剂的聚氨酯

    公开(公告)号：US5374704A

    公开(公告)日：1994-12-20

    申请号：US166760

    申请日：1993-12-14

    申请人： Hanns-Peter Muller ,  Rolf Dhein ,  Herbert Hugl ,  Heinz Pudleiner

    发明人： Hanns-Peter Muller ,  Rolf Dhein ,  Herbert Hugl ,  Heinz Pudleiner

    IPC分类号： A61L24/00 ,  A61L27/00 ,  A61L27/18 ,  A61L29/00 ,  A61L29/06 ,  A61L31/06 ,  B65D65/38 ,  C08G18/08 ,  C08G18/10 ,  C08G18/44 ,  C08G18/73 ,  C08G18/75 ,  C08G18/77 ,  C08J5/18

    CPC分类号： C08G18/773 ,  A61L27/18 ,  A61L29/06 ,  A61L31/06 ,  C08G18/10 ,  C08G18/44 ,  C08G18/75

    摘要： The present invention is directed to pure polyurethanes which are biocompatible. These pure polyurethanes comprise the reaction product of:a) a pre-adduct containing NCO groups and comprising the reaction product ofi) a diisocyanate selected from the group consisting of aliphatic diisocyanates, cycloaliphatic diisocyanates, and mixtures thereof, withii) a macrodiol having a molecular weight of from 500 to 10,000 wherein said components i) and ii) reacted at temperatures of from 90.degree.-150.degree. C.; withb) a chain extender having a molecular weight of from 62 to 400 and being selected from the group consisting of aliphatic diols, cycloaliphatic diols, and mixtures thereof, and optionally,c) additional diisocyanate selected from the group consisting of aliphatic diisocyanates, cycloaliphatic diisocyanates, and mixtures thereof,wherein said component c), when added, is added either simultaneously with component b) or separately from component b), the quantities of components a)i), a)ii), and c) being such that the molar ratio of diisocyanate to macrodiol is from 1.5:1 to 22:1, and the reaction of components a) and b) and optionally component c) is conducted at temperatures of from 90.degree. to 230.degree. C., with the proviso that the reaction conditions are maintained until said polyurethane has a melt viscosity of at least 2500 mPa.s at 120.degree. C.

    摘要翻译： 本发明涉及生物相容的纯聚氨酯。 这些纯聚氨酯包括以下物质的反应产物：a）含有NCO基团的预加合物，其包含i）选自脂族二异氰酸酯，脂环族二异氰酸酯及其混合物的二异氰酸酯的反应产物，ii）具有 分子量为500至10,000，其中所述组分i）和ii）在90-150℃的温度下反应; 其中b）分子量为62至400的扩链剂，并且选自脂族二醇，脂环族二醇及其混合物，以及任选地，c）另外的二异氰酸酯，其选自脂族二异氰酸酯，脂环族脂族 二异氰酸酯及其混合物，其中所述组分c）在加入时与组分b）同时加入或与组分b）分开加入，组分a）i），a）ii）和c）的数量使得 二异氰酸酯与大分子二醇的摩尔比为1.5:1至22:1，组分a）和b）和任选组分c）的反应在90℃至230℃的温度下进行，条件是 维持反应条件，直到所述聚氨酯在120℃下的熔体粘度为至少2500mPa.s。

    Cycloaliphatic thermoplastic polyurethane elastomers
    5.
    发明授权
    Cycloaliphatic thermoplastic polyurethane elastomers 失效
    环脂族热塑性聚氨酯弹性体

    公开(公告)号：US5942593A

    公开(公告)日：1999-08-24

    申请号：US805840

    申请日：1997-03-03

    申请人： Heinz Pudleiner ,  Rolf Dhein ,  Herbert Hugl ,  Hanns-Peter Muller ,  Herbert Heidingsfeld ,  Hans-Georg Hoppe

    发明人： Heinz Pudleiner ,  Rolf Dhein ,  Herbert Hugl ,  Hanns-Peter Muller ,  Herbert Heidingsfeld ,  Hans-Georg Hoppe

    IPC分类号： B29D99/00 ,  A61L29/06 ,  B29K75/00 ,  C08G18/10 ,  C08G18/12 ,  C08G18/42 ,  C08G18/44 ,  C08G18/48 ,  C08G18/65 ,  C08G18/66 ,  C08G18/73 ,  C08G18/75

    CPC分类号： C08G18/4854 ,  A61L29/06 ,  C08G18/12 ,  C08G18/44

    摘要： A process for the preparation of a polyurethane-urea elastomer having a mole ratio of NCO groups to all active hydrogen atoms in the range of 0.9 to 1.2 is disclosed. The process comprise reacting (A), (B) and (C.2) for form an NCO-containing prepolymer and then reacting said prepolymer with (C.1) and (D). Accordingly (A) is 5-isocyanato-1-(isocyanatomethyl)-1,1,3-trimethylcyclohexane or bis-(4-isocyanatocyclohexyl)-methane,(B) is polytetrahydrofuran or hexanediol polycarbonate and (C.2) is a chain extender. (C.1) is 5-amino-3-amino-methyl-1,3,3-trimethylcyclohexane or bis-(4-aminocyclohexyl)-methane and (D) is a molecular weight regulator. The elastomer thus produced is particularly suitable for the preparation of moldings, films, flexible tubing (for medical purposes) and catheters.

    摘要翻译： 公开了一种制备具有NCO基摩尔数与所有活性氢原子在0.9至1.2范围内的聚氨酯 - 脲弹性体的方法。 该方法包括使（A），（B）和（C.2）反应形成含NCO的预聚物，然后使所述预聚物与（C.1）和（D）反应。 因此（A）是5-异氰酸基-1-（异氰酸根合甲基）-1,1,3-三甲基环己烷或双 - （4-异氰酸根合环己基） - 甲烷，（B）是聚四氢呋喃或己二醇聚碳酸酯，（C.2） 延长剂 （C.1）是5-氨基-3-氨基 - 甲基-1,3,3-三甲基环己烷或双 - （4-氨基环己基） - 甲烷，（D）是分子量调节剂。 如此制备的弹性体特别适用于制备模制品，薄膜，柔性管（用于医疗用途）和导管。

    Stabilization of highly heat distortion resistant polycarbonates
    8.
    发明授权
    Stabilization of highly heat distortion resistant polycarbonates 失效
    高耐热变形聚碳酸酯的稳定化

    公开(公告)号：US5194467A

    公开(公告)日：1993-03-16

    申请号：US816918

    申请日：1992-01-03

    申请人： Helmut-Martin Meier ,  Uwe Westeppe ,  Rolf Dhein ,  Dieter Freitag ,  Martin Wandel ,  Axel Sandquist

    发明人： Helmut-Martin Meier ,  Uwe Westeppe ,  Rolf Dhein ,  Dieter Freitag ,  Martin Wandel ,  Axel Sandquist

    IPC分类号： C08K5/5435

    CPC分类号： C08K5/5435

    摘要： Highly heat distortion resistant moulding compositions are disclosed comprising an aromatic polycarbonate having molecular weights Mw (weight average) of a least 10,000, containing bifunctional carbonate structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.12 -aralkyl,m stands for an integer from 4 to 7,R.sup.3 and R.sup.4, which are selected individually for each X, denote, independently of one another, hydrogen or C.sub.1 -C.sub.6 -alkyl, andX denotes carbonunder the condition that R.sup.3 and R.sup.4 are both alkyl on at least one X atom andas the only thermo stabilizer, from 0.001 to 1% by weight of a siloxane corresponding to formula (II) ##STR2## wherein R and R' denote, independently of one another, C.sub.1 -C.sub.4 -alkyl or -aryl andx and y stand for the numbers 1,2 or 3 and x+y always add up to 4.

    摘要翻译： 公开了耐热变形性模塑组合物，其包含具有至少10,000的分子量Mw（重均分子）的芳族聚碳酸酯，其含有对应于式（Ia）的双官能碳酸酯结构单元，其中R1和R2独立地表示 另一个是氢，卤素，C 1 -C 8 - 烷基，C 5 -C 6 - 环烷基，C 6 -C 10 - 芳基或C 7 -C 12 - 芳烷基，m代表4-7的整数，R3和R4分别为 每个X彼此独立地表示氢或C 1 -C 6 - 烷基，X表示碳，在R 3和R 4均为至少一个X原子上为烷基且仅为热稳定剂的情况下，为0.001至1％ 重量的对应于式（II）的硅氧烷（II）其中R和R'彼此独立地表示C 1 -C 4 - 烷基或 - 芳基，x和y表示数字1,2或3 并且x + y总是最多为4。

    Wood or wood product coated with an aqueous, air-drying coating agent
    9.
    发明授权
    Wood or wood product coated with an aqueous, air-drying coating agent 失效
    木制或木制产品，涂有水性空气干燥涂料

    公开(公告)号：US5089342A

    公开(公告)日：1992-02-18

    申请号：US653020

    申请日：1991-02-08

    申请人： Rolf Dhein ,  Thomas Scholl ,  Wolfgang Wellner ,  Lothar Backer

    发明人： Rolf Dhein ,  Thomas Scholl ,  Wolfgang Wellner ,  Lothar Backer

    IPC分类号： C08L33/04 ,  B27K3/15 ,  B27K5/00 ,  C08F8/14 ,  C08F8/44 ,  C08L33/14 ,  C09D133/04 ,  C09D133/14

    CPC分类号： C09D133/14 ,  C08F8/14 ,  C08F8/44 ,  C08L97/02 ,  B27K3/15 ,  C08K5/17 ,  C08L33/00 ,  C08L63/10 ,  Y10T428/31511 ,  Y10T428/31906

    摘要： An improved aqueous coating agent for providing a decorative and protective coating for wood or wood products contains as a binder polyacrylate resins having chemically incorporated therein air-drying, unsaturated fatty acid moieties and quaternary ammonium moieties, and said agent is prepared by reactingA) excess polyacrylates containing epoxide groups and having an epoxide group equivalent weight of 200 to 1,300 withB) drying fatty acids, in an addition reaction with ester formation,C) reacting at least some of the remaining epoxide groups in the A)-B) reaction product with monoamine ammonium salts which contain an N-H bond in an addition reaction, anddissolving the reaction product obtained from step C) and containing quaternary ammonium groups in water.

    摘要翻译： 用于提供用于木材或木制品的装饰性和保护性涂层的改进的水性涂料包含作为粘合剂的聚丙烯酸酯树脂，其具有化学结合在其中的空气干燥，不饱和脂肪酸部分和季铵部分，并且所述试剂通过使A）过量 含有环氧基团的聚丙烯酸酯，其环氧基团当量为200至1,300，B）在与酯形成的加成反应中干燥脂肪酸，C）使A）-B）反应产物中的至少一些剩余环氧基反应 在加成反应中含有NH键的单胺铵盐，并将从步骤C）得到的反应产物溶解并含有季铵基团。