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41 条记录 (耗时 0.015 秒)

    Process for the preparation of noncellular polyurethane elastomers based on 4,4-diisocyanato-1,2-diphenylethane
    1.
    发明授权
    Process for the preparation of noncellular polyurethane elastomers based on 4,4-diisocyanato-1,2-diphenylethane 失效
    用于制备基于4,4-二异氰酸根合-1,2-二苯基乙烷的非细胞聚氨酯弹性体的方法

    公开(公告)号：US4448946A

    公开(公告)日：1984-05-15

    申请号：US418717

    申请日：1982-09-16

    申请人： Herbert Stutz ,  Karl H. Illers ,  Herbert Haberkorn ,  Walter Heckmann

    发明人： Herbert Stutz ,  Karl H. Illers ,  Herbert Haberkorn ,  Walter Heckmann

    IPC分类号： C08G18/76

    CPC分类号： C08G18/7671

    摘要： The invention relates to a process for the manufacture of noncellular polyurethane elastomers by reacting 4,4'-diisocyanato-1,2-diphenylethane or diisocyanato-1,2-diphenylethane isomer mixtures with a 4,4'-diisocyanato-1,2-diphenylethane content in excess of 95 percent by weight, higher molecular weight polyhydroxyl compounds and low molecular weight chain extenders optionally in the presence of auxiliaries and additives.The polyurethane elastomers produced in accordance with this invention excel by a greater hardness and improved mechanical properties compared with polyurethane elastomers based on 4,4'-diphenylmethane diisocyanate with otherwise comparable composition.

    摘要翻译： 本发明涉及一种通过使4,4'-二异氰酸酯基-1,2-二苯基乙烷或二异氰酸酯基-1,2-二苯基乙烷异构体混合物与4,4'-二异氰酸酯基-1,2-二苯基乙烷异构体混合物反应制备非细胞聚氨酯弹性体的方法， 二苯基乙烷含量超过95重量％，较高分子量的多羟基化合物和低分子量扩链剂，任选在助剂和添加剂的存在下。 与基于4,4'-二苯基甲烷二异氰酸酯的聚氨酯弹性体相比，根据本发明生产的聚氨酯弹性体具有更大的硬度和更好的机械性能。

    Process for the preparation of cellular polyurethane elastomers based on 4,4'-diisocyanato-1,2-diphenylethane
    2.
    发明授权
    Process for the preparation of cellular polyurethane elastomers based on 4,4'-diisocyanato-1,2-diphenylethane 失效
    基于4,4'-二异氰酸根合-1,2-二苯基乙烷制备细胞聚氨酯弹性体的方法

    公开(公告)号：US4421870A

    公开(公告)日：1983-12-20

    申请号：US419755

    申请日：1982-09-20

    申请人： Herbert Stutz ,  Karl H. Illers ,  Herbert Haberkorn ,  Walter Heckmann

    发明人： Herbert Stutz ,  Karl H. Illers ,  Herbert Haberkorn ,  Walter Heckmann

    IPC分类号： C08G18/00 ,  C08G18/76 ,  C12P7/16

    CPC分类号： C08G18/7671 ,  C08G2101/0008 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08G2350/00 ,  C08G2410/00

    摘要： The invention relates to a method for the preparation of cellular polyurethane elastomers with densities of approximately 250 to 800 grams per liter by reacting 4,4'-diisocyanato-1,2-diphenylethane or a diisocyanato-1,2-diphenylethane isomer mixture with a 4,4'-diisocyanato-1,2-diphenylethane content of more than 95 percent by weight with higher molecular weight polyhydroxyl compounds and water, as well as optionally chain extenders in the presence of auxiliaries and/or additives according to the one-shot or preferably the prepolymer method in closed molds.Compared with products based on 4,4'-diisocyanatodiphenylmethane, the polyurethane elastomer molded parts have improved physical and thermal properties.

    摘要翻译： 本发明涉及一种通过使4,4'-二异氰酸根合-1,2-二苯基乙烷或二异氰酸酯-1,2-二苯基乙烷异构体混合物与一种二异氰酸酯基-1,2-二苯基乙烷异构体混合物的混合物制备密度为约250至800克/升的多孔聚氨酯弹性体的方法， 与较高分子量的多羟基化合物和水相比，4,4'-二异氰酸酯基-1,2-二苯基乙烷含量大于95重量％，以及根据一次性助剂和/或添加剂存在下任选的增链剂 或优选在封闭模具中的预聚物方法。 与基于4,4'-二异氰酸基二苯基甲烷的产品相比，聚氨酯弹性体模塑部件具有改善的物理和热性能。

    Polyurethane-urea elastomers and their production
    4.
    发明授权
    Polyurethane-urea elastomers and their production 失效
    聚氨酯 - 尿素弹性体及其生产

    公开(公告)号：US4208507A

    公开(公告)日：1980-06-17

    申请号：US922317

    申请日：1978-07-06

    申请人： Herbert Stutz ,  Karl H. Illers ,  Ludwig Schuster

    发明人： Herbert Stutz ,  Karl H. Illers ,  Ludwig Schuster

    IPC分类号： C08G18/10 ,  C08G18/75 ,  C08G18/32

    CPC分类号： C08G18/75 ,  C08G18/10

    摘要： Polyurethane-urea elastomers with improved temperature characteristics, in particular improved low temperature properties, good mechanical properties over a large temperature range and excellent resistance to hydrolysis, are obtained by reacting(A) a prepolymer, possessing cycloaliphatic NCO groups, which has been prepared from essentially difunctional polyhydroxy compounds and organic diisocyanates possessing at least one NCO group bonded to a cycloaliphatic structure, these reactants being used so as to give a ratio of total hydroxyl: NCO groups of from 1:1.2 to 1:10, with(B) 3,3',5,5'-tetramethyl-4,4'-diamino-diphenylmethane, A and B being reacted in the molar ratio of from 1:0.8 to 1:1.2.

    摘要翻译： 通过使（A）具有环脂族NCO基团的预聚物（其由以下制备）制备的具有改进的温度特性，特别是改进的低温性能，在大温度范围内的良好机械性能和优异的抗水解性的聚氨酯 - 脲弹性体 基本上是双官能多羟基化合物和具有至少一个与脂环族结构键合的NCO基团的有机二异氰酸酯，使用这些反应物，以使总羟基：NCO基团的比例为1:1.2至1:10，与（B）3 ，3'，5,5'-四甲基-4,4'-二氨基 - 二苯基甲烷，A和B的摩尔比为1:0.8至1:1.2。

    Hard, rigid, non-elastomeric polyurethane, compositions
    8.
    发明授权
    Hard, rigid, non-elastomeric polyurethane, compositions 失效
    硬质，刚性，非弹性聚氨酯，组合物

    公开(公告)号：US4195149A

    公开(公告)日：1980-03-25

    申请号：US818521

    申请日：1977-07-25

    申请人： Herbert Stutz ,  Robert Gehm

    发明人： Herbert Stutz ,  Robert Gehm

    IPC分类号： C08G18/28 ,  C08G18/30

    CPC分类号： C08G18/283

    摘要： Hard, rigid, non-elastomeric, non-cellular polyurethane compositions manufactured by reacting a liquid hydroxylic polyether having an OH equivalent weight of from 50 to 250, a monofunctional hydroxylic polyether having a molecular weight of from 150 to 10,000 and devoid of further functional groups which react with isocyanates, and an organic polyisocyanate, with or without catalysts, auxiliaries and additives.

    摘要翻译： 通过使OH当量为50至250的液体羟基聚醚与分子量为150至10,000的单官能羟基聚醚反应制得的硬质，刚性，非弹性体，非细胞聚氨酯组合物，并且没有其它官能团 其与异氰酸酯反应，和有机多异氰酸酯，具有或不具有催化剂，助剂和添加剂。