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58 条记录 (耗时 0.031 秒)

    Polyurethane elastomers with reduced gas permeability
    42.
    发明授权
    Polyurethane elastomers with reduced gas permeability 失效
    具有降低透气性的聚氨酯弹性体

    公开(公告)号：US5710233A

    公开(公告)日：1998-01-20

    申请号：US779198

    申请日：1997-01-06

    申请人： Walter Meckel ,  Klaus Konig ,  Hans-Dieter Thomas

    发明人： Walter Meckel ,  Klaus Konig ,  Hans-Dieter Thomas

    IPC分类号： C08G18/60 ,  C08G18/65 ,  C08G18/67 ,  C08G18/46 ,  C08G18/32 ,  C08L75/06

    CPC分类号： C08G18/675 ,  C08G18/606 ,  C08G18/65

    摘要： Polyurethane elastomers with reduced gas permeability are prepared by reaction of: a) diisocyanates, b) compounds with a molecular weight of 500 to 10,000 having at least two hydrogen atoms that are reactive towards isocyanates, c) compounds with a molecular weight of 61 to 499 having at least two hydrogen atoms that are reactive towards isocyanates, and optionally d) further auxiliaries and additives, characterized in that i) the ratio of the isocyanate groups in a) to the sum of the isocyanate-reactive groups in b) and c) is between 1:0.80 and 1:1.05 (isocyanate:isocyanate-reactive), and ii) the compound b) contains 3 to 15% by wt. of amide bonds ##STR1##

    摘要翻译： 具有降低的透气性的聚氨酯弹性体通过以下反应制备：a）二异氰酸酯，b）分子量为500至10,000的具有至少两个对异氰酸酯反应的氢原子的化合物，c）分子量为61至499的化合物 具有至少两个对异氰酸酯具有反应性的氢原子，以及任选地d）其它助剂和添加剂，其特征在于i）a）中的异氰酸酯基团与b）中的异氰酸酯反应性基团的总和的比例和c） 为1：0.80〜1：1.05（异氰酸酯：异氰酸酯反应性），ii）化合物b）含有3〜15重量％ 的酰胺键

    Moisture-curing, NCO-reactive polyurethane hotmelt adhesive composition
    44.
    发明授权
    Moisture-curing, NCO-reactive polyurethane hotmelt adhesive composition 失效
    水分固化，NCO-反应性聚氨酯热固性胶粘剂组合物

    公开(公告)号：US5166302A

    公开(公告)日：1992-11-24

    申请号：US872275

    申请日：1992-04-22

    申请人： Joachim Werner ,  Walter Meckel ,  Horst Stepanski ,  Jose Colinas-Martinez

    发明人： Joachim Werner ,  Walter Meckel ,  Horst Stepanski ,  Jose Colinas-Martinez

    IPC分类号： B32B17/10 ,  C08G18/12 ,  C08G18/40 ,  C08G18/42 ,  C08G18/72 ,  C08G18/76

    CPC分类号： C08G18/7607 ,  B32B17/1077 ,  C08G18/12 ,  C08G18/4018 ,  C08G18/4202 ,  C08G18/721 ,  C08G2170/20

    摘要： The invention relates to a moisture-curing, NCO-reactive polyurethane hotmelt adhesive composition to a process for its production and to its use as an adhesive wherein the hot-melt adhesive characterized by a reaction product obtainable by reaction of:A) a mixture of:i) polyfunctional polyol component which is liquid or highly viscous (paste-like) at room temperature (25.degree. C.) and which has an average molecular weight of 500 to 5,000 and which is consisting of at least one polyether and/or polyester polyol, andii) a polyfunctional polyol component which is crystalline at room temperature (25.degree. C.) and which has a molecular weight of 500 to 10,000 and preferably 2,000 to 5,000with a mixture ofB)i) a polyisocyanate component containing two differently reactive NCO groups andii) a diisocyanate component having an NCO reactivity to hydroxyl groups which is greater than that of the less reactive NCO groups of the polyisocyanate component containing two differently reactive NCO groups,the overall ratio of NCO:OH groups being greater than 1, and the ratio of the NCO groups of the polyisocyanate component containing two differently reactive NCO groups to the OH groups of the polyol component i) being between 1.05 and 2.0 and the ratio by weight formed from the quantity of polyol component to the quantity of the polyisocyanate component containing two differently reactive NCO groups and the quantity of the crystalline polyol component, the diisocyanate component containing isocyanate groups which are more reactive to OH groups than the less reactive NCO groups of the isocyanate containing two differently reactive NCO groups being between 10 and 0.1.

    摘要翻译： 本发明涉及一种湿固化性NCO反应性聚氨酯热熔粘合剂组合物，用于其生产和用作粘合剂的方法，其中该热熔粘合剂的特征在于可通过以下反应获得的反应产物：A） ：i）在室温（25℃）下为液体或高粘度（糊状）的多官能多元醇组分，其平均分子量为500至5,000，并且由至少一种聚醚和/或聚酯 多元醇，和ii）在室温（25℃）下为结晶的多官能多元醇组分，其分子量为500至10,000，优选为2,000至5,000，混合物为B）i）含有两种不同的多异氰酸酯组分 反应性NCO基团和ii）具有NCO与羟基反应性的二异氰酸酯组分，其大于含有两种不同反应性NCO g的多异氰酸酯组分的较低反应性NCO基团的二异氰酸酯组分 组合物，NCO：OH基团的总比例大于1，并且含有两个不同反应性NCO基团的多异氰酸酯组分与多元醇组分i）的OH基团的NCO基团的比例在1.05和2.0之间， 由多元醇组分的量与含有两个不同反应性NCO基团的多异氰酸酯组分的量和结晶多元醇组分的量相比，含有与OH反应性更高的反应性NCO基团的异氰酸酯基团的二异氰酸酯组分 的含有两个不同反应性NCO基团的异氰酸酯在10和0.1之间。

    Method of direct manufacture of pigmented polyurethane powder
    46.
    发明授权
    Method of direct manufacture of pigmented polyurethane powder 失效
    直接制造着色聚氨酯粉末的方法

    公开(公告)号：US4985490A

    公开(公告)日：1991-01-15

    申请号：US336978

    申请日：1989-04-12

    申请人： James W. Rosthauser ,  Walter Meckel ,  Werner Rasshofer

    发明人： James W. Rosthauser ,  Walter Meckel ,  Werner Rasshofer

    IPC分类号： C08L75/04 ,  C08G18/00 ,  C08G18/08 ,  C08K3/00 ,  C08K5/00 ,  C08L75/00

    CPC分类号： C08K3/0033 ,  C08G18/0871 ,  C08K5/0041

    摘要： The present invention is directed to a process for the direct production of a pigmented thermoplastic polyurethane powder in finely divided form by(a) reacting with agitation at an overall equivalent ratio of isocyanate groups to isocyanate reactive groups of about 0.5 to 1.1(i) a surfactant-stabilized emulsion of fine droplets of a first reactant which has an average of about two isocyanate or isocyanate reactive groups in admixture with at least one pigment with(ii) a second reactant which contain an average of about two isocyanate or isocyanate reactive groups, in an inert organic liquid in which the first reactant, the pigment and the powder are substantially insoluble or immiscible to form particles of the powder which are protected from agglomeration by the surfactant, and(b) separating the particles of the powder from the inert organic liquid.The present invention is also directed to the pigmented thermoplastic polyurethane powders obtained by this process.

    Process for the production of a magnetic recording medium
    47.
    发明授权
    Process for the production of a magnetic recording medium 失效
    用于生产磁记录介质的方法

    公开(公告)号：US4869965A

    公开(公告)日：1989-09-26

    申请号：US134217

    申请日：1987-12-16

    申请人： Johannes Gerum ,  Heinrich Kober ,  Walter Meckel

    发明人： Johannes Gerum ,  Heinrich Kober ,  Walter Meckel

    IPC分类号： C08G18/78 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/06 ,  G11B5/702 ,  G11B5/842

    CPC分类号： G11B5/7021 ,  C08G18/7887 ,  Y10S428/90 ,  Y10T428/31609 ,  Y10T428/31678

    摘要： A magnetic recording carrier which has improved mechanical properties as a result of a highly active cross-linking reaction of the polymeric binder is produced by carrying out the cross-linking reaction by way of oligo- and/or polyurethanes and/or polyureas containing oxadiazine trione rings in the presence of hydroxyl groups and/or aliphatic amino groups. The oligo- and polyurethanes containing the oxadiazine trione ring are reaction products ofA polyisocyanates with a functionality of from 1.95 to 2.05, preferably from 1.99 to 2.01 andB compounds containing predominantly two zerewitinoff active hydrogen atoms, selected from hydroxyl and/or amino compounds in the molecular weight range of from 18 to 6000.under the condition that the ratio of isocyanate groups present in A to zerewitinoff active hydrogens present in B lies in the range of from 0.75:1 to 1.1:1 and from 5 to 100 mol % of the polyisocyanate mentioned under A are polyisocyanates containing an oxadiazine trione ring, and catalytic quantities of tertiary amines and/or aliphatic polyamines are optionally added for hardening the magnetizable layer.

    摘要翻译： 由于聚合物粘合剂的高活性交联反应而具有改进的机械性能的磁记录载体是通过使用含有恶二嗪三酮的低聚和/或/或聚氨酯和/或聚脲进行交联反应来制备的 在羟基和/或脂族氨基存在下形成环。 含有恶二嗪三酮环的低聚物和聚氨酯是官能度为1.95-2.05，优选1.99-2.01的A多异氰酸酯的反应产物，以及主要含有两个齐视选择性活性氢原子的B化合物，其选自羟基和/或氨基化合物 分子量范围为18至6000，条件是存在于B中存在于A至Zerewitinoff活性氢中的异氰酸酯基团的比例在0.75:1至1.1:1的范围内，以及5至100mol％的 A下提到的多异氰酸酯是含有恶二嗪三酮环的多异氰酸酯，任选加入催化量的叔胺和/或脂族多胺硬化可磁化层。

    Adhesive compositions containing blocked polyurethane prepolymers
    50.
    发明申请
    Adhesive compositions containing blocked polyurethane prepolymers 审中-公开
    含封端聚氨酯预聚物的粘合剂组合物

    公开(公告)号：US20060069225A1

    公开(公告)日：2006-03-30

    申请号：US11219396

    申请日：2005-09-02

    申请人： Matthias Wintermantel ,  Christoph Gurtler ,  Michael Schelhaas ,  Rainer Trinks ,  Walter Meckel

    发明人： Matthias Wintermantel ,  Christoph Gurtler ,  Michael Schelhaas ,  Rainer Trinks ,  Walter Meckel

    IPC分类号： C08G18/00

    CPC分类号： C09J175/12 ,  C08G18/10 ,  C08G18/8093 ,  C09J175/04 ,  C08G18/3271

    摘要： The present invention relates to reactive compositions containing A) one or more blocked polyurethane prepolymers which have a content of blocked isocyanate groups (calculated as NCO) of 0.1 to 20 wt. % and are prepared from i) at least one aromatic, aliphatic, araliphatic and/or cycloaliphatic diisocyanate having a content of free NCO groups of 5 to 60 wt. %, ii) a polyol component containing at least one polyester polyol, and/or at least one polyether polyol and/or at least one polycarbonate polyol, iii) CH-acidic cyclic ketones corresponding to formula (I) as blocking agents wherein X represents an electron-attracting group, R1 and R2 independently of one another represent the radicals H, C1-C20 (cyclo)alkyl, C6-C24 aryl, C1-C20 (cyclo)alkyl ester or amide, C6-C24 aryl ester or amide, mixed aliphatic/aromatic radicals with 1 to 24 carbon atoms that can also be part of a 4- to 8-membered ring, n is an integer from 0 to 5, and B) one or more OH-functional compounds in which the OH component undergoes activation by a deposition amine component. The present invention also relates to a composite system containing two adherends bonded together with the reactive composition according to the invention.

    摘要翻译： 本发明涉及含有A）一种或多种封端聚氨酯预聚物的反应性组合物，其中封端异氰酸酯基团（以NCO计算）为0.1-20wt。 ％，并且由i）至少一种芳族，脂族，芳脂族和/或脂环族二异氰酸酯制备，其中游离NCO基团含量为5-60wt。 ％，ii）含有至少一种聚酯多元醇的多元醇组分和/或至少一种聚醚多元醇和/或至少一种聚碳酸酯聚