Polyurethane elastomers comprising allophanate modified isocyanates
    1.
    发明申请
    Polyurethane elastomers comprising allophanate modified isocyanates 审中-公开
    包含脲基甲酸酯改性异氰酸酯的聚氨酯弹性体

    公开(公告)号:US20070142610A1

    公开(公告)日:2007-06-21

    申请号:US11300957

    申请日:2005-12-15

    IPC分类号: C08G18/77

    摘要: This invention relates to polyurethane elastomers and to a process for their production. These elastomers comprise the reaction product of a polyisocyanate component comprising an allophanate modified (cyclo)aliphatic polyisocyanate which has an NCO group content of about 15 to about 35% or a prepolymer thereof, with an isocyanate-reactive component comprising a low unsaturation polyether polyols, a low molecular weight organic compound containing two hydroxyl groups and which is free of amine groups, and, optionally, one or more organic compounds having a molecular weight of about 200 to about 500, a hydroxyl functionality of 3 to 4 and comprising an amine-initiated polyether polyol.

    摘要翻译: 本发明涉及聚氨酯弹性体及其生产方法。 这些弹性体包括包含NCO基团含量为约15至约35%的脲基甲酸酯改性(环)脂族多异氰酸酯或其预聚物的多异氰酸酯组分与包含低不饱和聚醚多元醇的异氰酸酯反应性组分的多异氰酸酯组分的反应产物, 含有两个羟基并且不含胺基的低分子量有机化合物,以及任选的一种或多种分子量为约200至约500,羟基官能度为3至4的有机化合物, 引发的聚醚多元醇。

    Weather resistant polyurethane elastomer
    2.
    发明申请
    Weather resistant polyurethane elastomer 审中-公开
    耐候性聚氨酯弹性体

    公开(公告)号:US20070142607A1

    公开(公告)日:2007-06-21

    申请号:US11304265

    申请日:2005-12-15

    IPC分类号: C08G18/00

    摘要: This invention relates to polyurethane elastomers and to a process for their production. These elastomers comprise the reaction product of a (cyclo)aliphatic isocyanate component having an NCO group content of about 20 to about 45%, with an isocyanate-reactive component comprising one or more low unsaturation polyether polyols, a low molecular weight organic compound containing two hydroxyl groups and which is free of amine groups, and, optionally, one or more organic compounds having a molecular weight of about 200 to about 500, a hydroxyl functionality of 3 to 4 and comprising an amine-initiated polyether polyol.

    摘要翻译: 本发明涉及聚氨酯弹性体及其生产方法。 这些弹性体包含具有约20至约45%的NCO基团含量的(环)脂族异氰酸酯组分与包含一种或多种低不饱和聚醚多元醇的异氰酸酯反应性组分的反应产物,含有两个 羟基,并且不含胺基团,以及任选地,一种或多种分子量为约200至约500,羟基官能度为3至4并包含胺引发的聚醚多元醇的有机化合物。

    Polyurethane elastomers comprising allophanate modified isocyanates
    3.
    发明申请
    Polyurethane elastomers comprising allophanate modified isocyanates 审中-公开
    包含脲基甲酸酯改性的异氰酸酯的聚氨酯弹性体

    公开(公告)号:US20070185302A1

    公开(公告)日:2007-08-09

    申请号:US11350316

    申请日:2006-02-08

    IPC分类号: C08G18/00

    摘要: This invention relates to polyurethane elastomers and to a process for their production. These elastomers comprise the reaction product of a polyisocyanate component comprising an allophanate modified (cyclo)aliphatic polyisocyanate which has an NCO group content of about 15 to about 35% or a prepolymer thereof, with an isocyanate-reactive component comprising one or more polyether polyols which is free of amine groups, and a low molecular weight organic compound containing two hydroxyl groups and which is free of amine groups, in the presence of one or more catalysts.

    摘要翻译: 本发明涉及聚氨酯弹性体及其生产方法。 这些弹性体包含包含NCO基团含量为约15至约35%的脲基甲酸酯改性(环)脂族多异氰酸酯或其预聚物的多异氰酸酯组分与包含一种或多种聚醚多元醇的异氰酸酯反应性组分的多异氰酸酯组分的反应产物, 在一种或多种催化剂的存在下,不含胺基团和含有两个羟基并且不含胺基团的低分子量有机化合物。

    Fast curing aliphatic RIM elastomers
    4.
    发明申请
    Fast curing aliphatic RIM elastomers 有权
    快速固化脂肪族RIM弹性体

    公开(公告)号:US20070142609A1

    公开(公告)日:2007-06-21

    申请号:US11300958

    申请日:2005-12-15

    IPC分类号: C08G18/10

    摘要: This invention relates to polyurethane elastomers and to a process for their production. These elastomers comprise the reaction product of a (cyclo)aliphatic isocyanate component having an NCO group content of about 20 to about 45%, with an isocyanate-reactive component comprising one or more polyether polyols which is free of amine groups, and a low molecular weight organic compound containing two hydroxyl groups and which is free of amine groups, in the presence of one or more catalysts.

    摘要翻译: 本发明涉及聚氨酯弹性体及其生产方法。 这些弹性体包含NCO基团含量为约20至约45%的(环)脂族异氰酸酯组分与包含一种或多种不含胺基的聚醚多元醇的异氰酸酯反应性组分的反应产物,以及低分子量 在一种或多种催化剂存在下,含有两个羟基并且不含胺基团的重量有机化合物。

    Solid polyurethane elastomers which exhibit reduced dimensional shrinkage
    5.
    发明申请
    Solid polyurethane elastomers which exhibit reduced dimensional shrinkage 失效
    固体聚氨酯弹性体的尺寸收缩率降低

    公开(公告)号:US20060155092A1

    公开(公告)日:2006-07-13

    申请号:US11035591

    申请日:2005-01-13

    IPC分类号: C08G18/00

    摘要: This invention relates to solid elastomers which exhibit reduced dimensional shrinkage, and to a process for the production of these elastomers. These elastomers comprise the reaction product of a polyisocyanate component or prepolymer, with an isocyanate-reactive component comprising a high molecular weight component having an EO cap having less than 17% by wt., a chain extender and optionally, a crosslinker, in the presence of at least one catalysts. These solid elastomers are produced via the reaction injection molding process in a closed mold, preferably at an isocyanate index of about 70 to about 130.

    摘要翻译: 本发明涉及显示出减小的尺寸收缩率的固体弹性体以及生产这些弹性体的方法。 这些弹性体包括多异氰酸酯组分或预聚物与异氰酸酯反应性组分的反应产物,其包含具有小于17重量%的EO盖的高分子量组分,扩链剂和任选的交联剂, 的至少一种催化剂。 这些固体弹性体通过在闭合模具中的反应注射成型方法制备,优选异氰酸酯指数为约70至约130。