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    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。