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    High-durability flexible polyurethane cold cure molded foam and process for producing the same
    3.
    发明授权
    High-durability flexible polyurethane cold cure molded foam and process for producing the same 有权
    高耐久性柔性聚氨酯冷固化模塑泡沫及其生产方法

    公开(公告)号：US06433033B1

    公开(公告)日：2002-08-13

    申请号：US09502088

    申请日：2000-02-10

    申请人： Masahiro Isobe ,  Kazuhiko Ohkubo ,  Seijiro Sakai

    发明人： Masahiro Isobe ,  Kazuhiko Ohkubo ,  Seijiro Sakai

    IPC分类号： C08G1810

    CPC分类号： C08G18/4866 ,  C08G18/4072 ,  C08G18/632 ,  C08G2101/0008 ,  C08G2101/005

    摘要： The high-durability flexible polyurethane cold cure molded foam of the invention has an overall density of not less than 35 kg/m3 and not more than 45 kg/m3 and a wet heat compression set of not more than 15%, and preferably has a hardness change ratio, as determined in a repeated compression test, of not more than 15%. This foam can be obtained by the process of the invention. The process of the invention is a process for producing a flexible polyurethane cold cure molded foam obtained from a polyol and/or a polymer polyol containing dispersed polymer microparticles obtained by radical polymerizing a compound having an unsaturated bond in the polyol, water, a catalyst and a polyisocyanate, wherein the polyol is a polyol synthesized by the use of a catalyst containing at least one compound selected from the group consisting of a compound having a nitrogen-phosphorus double bond, cesium hydroxide and rubidium hydroxide. The foam of the invention has a low density and is excellent in durability, particularly in hardness change ratio in a repeated compression test and wet heat compression set. According to the process of the invention, such a foam can be obtained.

    摘要翻译： 本发明的高耐久性柔性聚氨酯冷固化模塑泡沫体的总密度不低于35kg / m 3且不大于45kg / m 3，湿热压缩永久变形不大于15％，优选具有 在重复压缩试验中确定的硬度变化率不大于15％。 该泡沫可通过本发明的方法获得。 本发明的方法是一种制备由多元醇得到的软质聚氨酯冷固化模塑泡沫体的方法和/或包含通过在多元醇，水，催化剂中自由基聚合具有不饱和键而获得的分散的聚合物微粒的聚合物多元醇， 多异氰酸酯，其中所述多元醇是通过使用含有至少一种选自具有氮 - 磷双键的化合物，氢氧化铯和氢氧化铷的化合物的催化剂合成的多元醇。 本发明的泡沫体的密度低，耐久性优异，特别是在重复压缩试验和湿热压缩成形中的硬度变化率方面。 根据本发明的方法，可以获得这样的泡沫。

    Flexible high resilience polyurethane foam
    4.
    发明授权
    Flexible high resilience polyurethane foam 失效
    柔性高弹性聚氨酯泡沫

    公开(公告)号：US5674920A

    公开(公告)日：1997-10-07

    申请号：US558983

    申请日：1995-11-16

    申请人： Masashi Obata ,  Seijiro Sakai ,  Kaoru Ueno

    发明人： Masashi Obata ,  Seijiro Sakai ,  Kaoru Ueno

    IPC分类号： B60R13/02 ,  C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08G18/06 ,  C08J9/08

    CPC分类号： C08G18/7607 ,  C08G18/10 ,  C08G18/4837 ,  C08G18/4866 ,  B60R13/02 ,  C08G2101/0008 ,  C08G2101/0058 ,  C08G2101/0083 ,  C08G2350/00

    摘要： A flexible high-resilience polyurethane foam which has improved impact resilience and compression set, excellent effect on the reduction of transmissibility at 6 Hz and also improved mechanical strengths even under a reduced amount of a catalyst and is prepared by using, as an organic polyisocyanate composition, a mixture having a specified ratio of tolylene diisocyanate to polymethylenepolyphenyl isocyanate having a specific benzenoid composition or by using an isocyanate terminated prepolymer obtained by reacting the mixture with polyoxyalkylene polyol which has specific structure and is used for modification, and by using polyalkylene polyol which satisfies specific conditions in a hydroxyl value, monool content, and head-to-tail coupling selectivity; and a preparation process of the flexible high resilience polyurethane foam.

    摘要翻译： 弹性高弹性聚氨酯泡沫塑料具有改进的冲击弹性和压缩永久变形，即使在减少量的催化剂下也能够有效地降低6Hz的传导率，并提高其机械强度，并且通过使用有机多异氰酸酯组合物 具有特定比例的甲苯二异氰酸酯与具有特定苯类组合物的聚亚甲基聚苯基异氰酸酯的混合物或通过使用通过使具有特定结构并用于改性的聚氧化烯多元醇使混合物与通过使用满足 羟值，单醇含量和头尾耦合选择性的具体条件; 以及柔性高弹性聚氨酯泡沫的制备方法。

    Flexible polyurethane foam and process for preparing same
    5.
    发明授权
    Flexible polyurethane foam and process for preparing same 失效
    柔性聚氨酯泡沫及其制备方法

    公开(公告)号：US5478866A

    公开(公告)日：1995-12-26

    申请号：US426009

    申请日：1995-04-20

    申请人： Masashi Obata ,  Seijiro Sakai ,  Kaoru Ueno

    发明人： Masashi Obata ,  Seijiro Sakai ,  Kaoru Ueno

    IPC分类号： C08G18/76 ,  C08G18/02 ,  C08G18/06

    CPC分类号： C08G18/7607 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08G2350/00

    摘要： A flexible polyurethane foam which has a low density, enhanced impact resilience, improved compression set and excellent effect on the reduction of 6 Hz vibration transmissibility and is obtained by a reaction of an organic polyisocyanate composition, that is, a mixture of (a) polymethylenepolyphenyl isocyanate containing from more than 60 to 90% by weight of a two benzene ring compound and having a weight ratio [three benzene ring compound]/[four or more benzene ring compounds + less active ingredient] of 1.1-20.0, and (b) tolylene diisocyanate in a ratio (a)/(b) of 97.apprxeq.80/3.apprxeq.20 by weight, or by reaction of a prepolymer derived from said organic polyisocyanate composition and a specific polyol, with a resin premix comprising a water blowing agent and an active hydrogen containing compound; and a process for preparing the flexible polyurethane foam.

    摘要翻译： 一种柔性聚氨酯泡沫，其具有低密度，增强的冲击弹性，改进的压缩永久变形和对降低6Hz振动传递率的优异影响，并且通过有机多异氰酸酯组合物，即（a）聚亚甲基聚苯基 异氰酸酯含有60〜90重量％的2苯环化合物，重量比[3苯环化合物] / [4种以上苯环化合物+少活性成分]为1.1-20.0，（b） 甲苯二异氰酸酯的重量比（a）/（b）为97 APPROX 80/3 APPRO 20，或通过来自所述有机多异氰酸酯组合物和特定多元醇的预聚物与包含水发泡剂和 含氢活性化合物; 以及制备柔性聚氨酯泡沫的方法。