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    Storage stable polyurethane adhesives
    3.
    发明授权
    Storage stable polyurethane adhesives 失效
    储存稳定的聚氨酯粘合剂

    公开(公告)号：US5100995A

    公开(公告)日：1992-03-31

    申请号：US581498

    申请日：1990-09-12

    申请人： Thomas Munzmay ,  Horst Stepanski ,  Walter Meckel

    发明人： Thomas Munzmay ,  Horst Stepanski ,  Walter Meckel

    IPC分类号： C08G18/10 ,  C08G18/12 ,  C08G18/42 ,  C08G18/44 ,  C09J175/06

    CPC分类号： C09J175/06 ,  C08G18/10 ,  C08G18/12 ,  C08G18/4238 ,  C08G18/44 ,  C08G18/8074 ,  C08G18/8077 ,  C08G2170/20 ,  C08G2250/00 ,  Y10S528/905

    摘要： The present invention is directed to a predominantly linear polyurethane adhesive which can be cross-linked by heat and is at least partially crystalline at room temperature, comprising:a) a polyurethane prepolymer which contains masked isocyanate groups and is at least partially crystalline, and is prepared by reacting:a1) at least one at least partially crystalline organic polyhydroxyl compound having a molecular weight above 400, being selected from the group consisting of polyesters and polycarbonates, anda2) a polyisocyanate component consisting of at least one organic polyisocyanate having a functionality of at least 2.a3) at least one monofunctional isocyanate blocking agent, anda4) optionally a polyhydroxyl compound having a hydroxyl functionality of at least 2 and a molecular weight below 500, in which the equivalent ratio of isocyanate groups of component a2) to the sum of isocyanate reactive groups of components a1) and a4) is kept in the range of from 1.1:1 to 3:1, and the equivalent ratio of the isocyanate groups resulting from the ratio of components a1) and a4) to a2) to the monofunctional blocking agents a3) is kept in the range of from 0.8:1 to 1.15:1, andb) at least one low molecular weight amine functional and/or hydroxyl functional chain lengthening or cross-linking agent having a molecular weight of from 32 to 500, and having a functionality of at least 2.

    摘要翻译： 本发明涉及可以通过热交联并且在室温下至少部分结晶的主要线性聚氨酯粘合剂，其包含：a）包含掩蔽的异氰酸酯基并且至少部分结晶的聚氨酯预聚物，并且是 通过使a1）至少一种至少部分结晶的分子量高于400的有机多羟基化合物，选自聚酯和聚碳酸酯，和a2）由至少一种具有官能度的有机多异氰酸酯组成的多异氰酸酯组分 a3）至少一种单官能异氰酸酯封端剂，和a4）任选的羟基官能度至少为2且分子量低于500的多羟基化合物，其中组分a2）的异氰酸酯基团的当量比与 组分a1）和a4）的异氰酸酯反应性基团的总和保持在1.1:1至3:1的范围内，和 由组分a1）和a4）至a2）与单官能封端剂a3）的比例产生的异氰酸酯基团的当量比保持在0.8:1至1.15:1的范围内，和b）至少一个低 分子量胺官能和/或羟基官能链延长或交联剂，其分子量为32至500，并且具有至少2的官能度。

    Aqueous polyurethane dispersions and their use as laminating adhesives
    6.
    发明授权
    Aqueous polyurethane dispersions and their use as laminating adhesives 失效
    水性聚氨酯分散体及其作为层压粘合剂的用途

    公开(公告)号：US5250610A

    公开(公告)日：1993-10-05

    申请号：US828079

    申请日：1992-01-30

    申请人： Eduard Hansel ,  Walter Meckel ,  Thomas Munzmay

    发明人： Eduard Hansel ,  Walter Meckel ,  Thomas Munzmay

    IPC分类号： C08G18/08 ,  C08G18/42 ,  C08G18/48 ,  C09J175/04 ,  C08L75/06

    CPC分类号： C08G18/4252 ,  C08G18/0823 ,  C08G18/4887 ,  C09J175/04 ,  C08G2170/80 ,  Y10T428/31551

    摘要： The present invention relates to aqueous polyurethane dispersions based onA) a relatively high molecular weight polyhydroxyl component containing carboxylic acid groups,B) optionally another relatively high molecular weight polyhydroxyl component which is substantially free of carboxylic acid groups,C) optionally low molecular weight polyhydroxyl compounds as chain lengthening agents,D) organic polyisocyanates andE) a neutralizing agent capable of converting the carboxylic acid groups into carboxylate groups,the dispersions are characterized in that the carboxyl group-containing relatively high molecular weight polyhydroxyl component A) is the esterification product of a polyether polyol a1) in the molecular weight range of from 400 to 5000, with a polycarboxylic acid a2); the dispersions are useful as laminating adhesives.

    摘要翻译： 本发明涉及基于A）含羧酸基团的相对高分子量的多羟基组分的水性聚氨酯分散体，B）任选地基本上不含羧酸基团的另一相对高分子量的多羟基组分，C）任选的低分子量多羟基 化合物作为增链剂，D）有机多异氰酸酯和E）能够将羧酸基团转化成羧酸酯基团的中和剂，其分散体的特征在于含羧基的相对高分子量的多羟基组分A）是酯化产物 的分子量范围为400-5000的聚醚多元醇a1）与多元羧酸a2）反应; 分散体可用作层压粘合剂。

    Process for the production of hydroxyl-group-containing compounds from polyurethane polyurea and/or polyurea wastes
    7.
    发明授权
    Process for the production of hydroxyl-group-containing compounds from polyurethane polyurea and/or polyurea wastes 失效
    用于从聚氨酯聚脲和/或聚脲废物生产含羟基化合物的方法

    公开(公告)号：US5635542A

    公开(公告)日：1997-06-03

    申请号：US492206

    申请日：1995-06-16

    申请人： Thomas Munzmay ,  Werner Rasshofer ,  Walter Meckel

    发明人： Thomas Munzmay ,  Werner Rasshofer ,  Walter Meckel

    IPC分类号： C08J11/26 ,  C07B41/02 ,  C08J11/22 ,  C08J11/24 ,  C07C29/128

    CPC分类号： C08J11/22 ,  C08J2375/00 ,  Y02P20/582 ,  Y02W30/706

    摘要： The present invention relates to a process for the production of hydroxyl-group-containing compounds suitable for the polyisocyanate polyaddition process from polyurea and/or polyurethane polyurea wastes by treating polyurea and/or polyurethane polyurea wastes with diols and/or polyols at temperatures from 160.degree. to 260.degree. C., the water present in the reaction vessel preferably being removed by distillation during the heating-up phase, characterized in that 1,3-dicarbonyl compounds are added to the reaction mixture before or during the reaction.

    摘要翻译： 本发明涉及通过在160℃的温度下用二醇和/或多元醇处理聚脲和/或聚氨酯聚脲废物来生产适用于聚脲和/或聚氨酯聚脲废物的多异氰酸酯加聚方法的含羟基化合物的方法 温度至260℃，反应容器中存在的水优选在加热阶段通过蒸馏除去，其特征在于在反应之前或反应期间将1,3-二羰基化合物加入到反应混合物中。

    Process for the production of compounds containing hydroxyl groups from (polyurethane) polyurea waste materials
    8.
    发明授权
    Process for the production of compounds containing hydroxyl groups from (polyurethane) polyurea waste materials 失效
    从（聚氨酯）聚脲废料生产含羟基的化合物的方法

    公开(公告)号：US5508312A

    公开(公告)日：1996-04-16

    申请号：US429411

    申请日：1995-04-26

    申请人： Thomas Munzmay ,  Hartmut Nefzger ,  Werner Rasshofer ,  Walter Meckel

    发明人： Thomas Munzmay ,  Hartmut Nefzger ,  Werner Rasshofer ,  Walter Meckel

    IPC分类号： C08J11/24 ,  C08G18/65 ,  C08G18/83 ,  C08J11/18 ,  C08J11/28 ,  C08L75/00 ,  C08J11/04

    CPC分类号： C08J11/18 ,  C08J2375/04 ,  Y02W30/706

    摘要： Compounds containing hydroxyl groups, which are suitable for the polyisocyanate addition polymerization process, are prepared from polyurethane-polyurea and/or polyurea waste materials. These compounds are produced by reacting a finely divided polyurethane-polyurea and/or polyurea waste material with a low molecular weight diol and/or polyol (and optionally a higher molecular weight polyol) and a low molecular weight urea and/or carbamic acid ester. This reaction may be carried in either one stage or two stages. In the two stage process, the waste material and diol/polyol are reacted in a first stage at a temperature of from about 100 to about 260.degree. C. In the second stage, the amine-containing alcoholysis product obtained in the first stage is reacted with a low molecular weight urea and/or carbamic acid ester. In the single stage process, the polyurethane-polyurea and/or polyurea waste material is reacted with a low molecular weight diol and/or polyol in the presence of a low molecular weight urea and/or carbamic acid ester.

    摘要翻译： 含有羟基的化合物，适用于多异氰酸酯加成聚合方法，由聚氨酯 - 聚脲和/或聚脲废料制备。 这些化合物通过使细分散的聚氨酯 - 聚脲和/或聚脲废料与低分子量二醇和/或多元醇（和任选的较高分子量的多元醇）和低分子量的脲和/或氨基甲酸酯反应来制备。 该反应可以在一个阶段或两个阶段中进行。 在二阶段工艺中，废料和二醇/多元醇在约100至约260℃的温度下在第一阶段中反应。在第二阶段中，使第一阶段获得的含胺醇解产物反应 与低分子量尿素和/或氨基甲酸酯。 在单阶段方法中，聚氨酯 - 聚脲和/或聚脲废料在低分子量脲和/或氨基甲酸酯的存在下与低分子量二元醇和/或多元醇反应。