PROCESS FOR PREPARING A POLYISOCYANURATE POLYURETHANE MATERIAL
    1.
    发明授权
    PROCESS FOR PREPARING A POLYISOCYANURATE POLYURETHANE MATERIAL 有权
    制备多异氰酸酯聚氨酯材料的方法

    公开(公告)号:EP1940898B1

    公开(公告)日:2010-12-15

    申请号:EP06793902.5

    申请日:2006-09-29

    IPC分类号: C08G18/09 C08G18/48 C08G18/76

    摘要: A process for preparing a polyisocyanurate polyurethane material, which process comprises reacting a polyisocyanate and an isocyanate-reactive composition, wherein the reaction is conducted at an isocyanate index of 150 to 5000 and in the presence of a trimerisation catalyst, wherein the polyisocyanate comprises a) 80- 100% by weight of diphenylmethane diisocyanate comprising at least 40%, preferably at least 60% and most preferably at least 85% by weight of 4,4'- diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25°C and has an NCO value of at least 20% by weight (polyisocyanate a), and b) 20-0% by weight of another polyisocyanate (polyisocyanate b), the amount of polyisocyanate a) and polyisocyanate b) being calculated on the total amount of this polyisocyanate a) and polyisocyanate b), and wherein the isocyanate-reactive composition comprises a) 80-100% by weight of a polyether polyol having an average nominal functionality of 2-6, an average equivalent weight of 1100-5000 and an oxyethylene (EO) content of 50-90% by weight and b) 20-0% by weight of one or more other isocyanate-reactive compounds, the amount of polyo l a) and isocyanate-reactive compound b) being calculated on the total amount of this polyol a) and compound b) and wherein the hardblock content is at most 49%.

    摘要翻译: 一种制备聚异氰脲酸酯聚氨酯材料的方法,该方法包括使聚异氰酸酯和异氰酸酯反应性组合物反应,其中反应在150-5000的异氰酸酯指数下和在三聚催化剂存在下进行,其中聚异氰酸酯包含a) 80-100重量%的包含至少40重量%,优选至少60重量%,最优选至少85重量%的4,4'-二苯基甲烷二异氰酸酯和/或所述二苯基甲烷二异氰酸酯的变体的二苯基甲烷二异氰酸酯,该变体是液体 (多异氰酸酯a),和b)20-0重量%的另一种多异氰酸酯(多异氰酸酯b),多异氰酸酯a)和多异氰酸酯b)的量计算在25℃下并且具有至少20重量%的NCO值 该多异氰酸酯a)和多异氰酸酯b)的总量,并且其中该异氰酸酯反应性组合物包含a)80-100重量%的具有平均标称功能的聚醚多元醇 y为2-6,平均当量为1100-5000,氧化乙烯(EO)含量为50-90%重量,和b)20-0%重量的一种或多种其它异氰酸酯反应性化合物, 多元醇1a)和异氰酸酯反应性化合物b)基于该多元醇a)和化合物b)的总量计算,并且其中硬化嵌段含量为至多49%。

    PROCESS FOR PREPARING AN ELASTOMER
    5.
    发明公开
    PROCESS FOR PREPARING AN ELASTOMER 有权
    一种用于生产弹性体

    公开(公告)号:EP1303551A1

    公开(公告)日:2003-04-23

    申请号:EP01943539.5

    申请日:2001-06-21

    摘要: A process for preparing a polyurethane elastomer having an apparent overall density of more than 150 kg/m3 comprising reacting a polyisocyanate and an isocyanate-reactive composition, optionally in the presence of water, wherein the reaction is conducted at an isocyanate index of 85 to 120, the polyisocyanate consists ofa) 80-100 % by weight of a diphenylmethane diisocyanate comprising at least 40 % by weight of 4,4'-diphenylmethane diisocyanate and/or a derivative of said diphenylmethane diisocyanate which derivative is liquid at 25 °C and has an NCO value of at least 20% by weight, and 20-0 % by weight of another polyisocyanate, and wherein the isocyanate-reactive composition consists of a) 80-100 % by weight of a polyether polyol having an average nominal functionality of 2-8, an average equivalent weight of 750-5000, an average molecular weight of 2000-12000, an oxyethylene content of 60-90 % by weight and a primary hydroxyl content of 70-100 % calculated on the total number of primary and secondary hydroxyl groups in the polyol, b) an isocyanate-reactive chain extender in an amount such that the hard block ratio is less than 0.50 and c) 20-0 % by weight of one or more other isocyanate-reactive compounds excluding water, the amount of polyol a) and isocyanate-reactive compound c) being calculated on the total amount of this polyol a) and compound c).

    PROCESS FOR PREPARING A POLYISOCYANURATE POLYURETHANE MATERIAL
    9.
    发明公开
    PROCESS FOR PREPARING A POLYISOCYANURATE POLYURETHANE MATERIAL 有权
    用于生产POLYISOCYANURATPOLYURETHANMATERIALS

    公开(公告)号:EP1940898A1

    公开(公告)日:2008-07-09

    申请号:EP06793902.5

    申请日:2006-09-29

    IPC分类号: C08G18/09 C08G18/48 C08G18/76

    摘要: A process for preparing a polyisocyanurate polyurethane material, which process comprises reacting a polyisocyanate and an isocyanate-reactive composition, wherein the reaction is conducted at an isocyanate index of 150 to 5000 and in the presence of a trimerisation catalyst, wherein the polyisocyanate comprises a) 80- 100% by weight of diphenylmethane diisocyanate comprising at least 40%, preferably at least 60% and most preferably at least 85% by weight of 4,4'- diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25°C and has an NCO value of at least 20% by weight (polyisocyanate a), and b) 20-0% by weight of another polyisocyanate (polyisocyanate b), the amount of polyisocyanate a) and polyisocyanate b) being calculated on the total amount of this polyisocyanate a) and polyisocyanate b), and wherein the isocyanate-reactive composition comprises a) 80-100% by weight of a polyether polyol having an average nominal functionality of 2-6, an average equivalent weight of 1100-5000 and an oxyethylene (EO) content of 50-90% by weight and b) 20-0% by weight of one or more other isocyanate-reactive compounds, the amount of polyo l a) and isocyanate-reactive compound b) being calculated on the total amount of this polyol a) and compound b) and wherein the hardblock content is at most 49%.

    PROCESS FOR PREPARING A POLYURETHANE MATERIAL
    10.
    发明公开
    PROCESS FOR PREPARING A POLYURETHANE MATERIAL 有权
    用于生产聚氨酯材料

    公开(公告)号:EP1305354A1

    公开(公告)日:2003-05-02

    申请号:EP01965034.0

    申请日:2001-06-25

    IPC分类号: C08G18/48 C08G18/66 C08G18/76

    CPC分类号: C08G18/4833 C08G18/7664

    摘要: A process for preparing a polyurethane material having no glass transition temperature below 25°C, which process comprises reacting a polyisocyanate and an isocyanate-reactive composition, optionally in the presence of water in an amount of less than 5 % by weight on the below isocyanate-reactive composition, wherein the reaction is conducted at an isocyanate index of 80 to 140, the polyisocyanate consists of a) 80-100 % by weight of diphenylmethane diisocyanate comprising at least 40 %, preferably at least 60 % and most preferably at least 85% by weight of 4,4'-diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25 °C and has an NCO value of at least 20% by weight (polyisocyanate a), and b) 20-0% by weight of another polyisocyanate (polyisocyanate b), and wherein the isocyanate-reactive composition consists of a) 80-100% by weight of a polyether polyol having an average nominal functionality of 3-8, an average equivalent weight of 200-2000, an average molecular weight of 600-8000, an oxyethylene (EO) content of 50-100 % and preferably of 75-100 % by weight and a primary hydroxyl content of 70-100 % calculated on the number of primary and secondary hydroxyl groups in the polyol, b) an isocyanate-reactive chain extender and/or cross linker in an amount such that the hard block ratio is 0.60 or more and preferably at least 0.65 and c) 20-0 % by weight of one or more other isocyanate-reactive compounds excluding water, the amount of polyol a) and isocyanate-reactive compound c) being calculated on the total amount of this polyol a) and compound c).