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    Preparation of flexible polyurethane foams
    1.
    发明授权
    Preparation of flexible polyurethane foams 失效
    柔性聚氨酯泡沫的制备

    公开(公告)号：US6156864A

    公开(公告)日：2000-12-05

    申请号：US961532

    申请日：1997-10-30

    申请人： Kazuhiko Ohkubo ,  Tomoki Tsutsui ,  Yoshitsugu Sakaki ,  Tamotsu Kunihiro ,  Ariko Nishikawa ,  Tsukuru Izukawa

    发明人： Kazuhiko Ohkubo ,  Tomoki Tsutsui ,  Yoshitsugu Sakaki ,  Tamotsu Kunihiro ,  Ariko Nishikawa ,  Tsukuru Izukawa

    IPC分类号： C08F283/06 ,  C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/65 ,  C08G65/26 ,  C08G65/28 ,  C08L71/02 ,  C08G18/32

    CPC分类号： C08G65/2696 ,  C08F283/06 ,  C08G18/4072 ,  C08G18/4829 ,  C08G18/4866 ,  C08G18/632 ,  C08G18/6564 ,  C08G18/657 ,  C08G65/2609 ,  C08G65/2648 ,  C08L71/02 ,  C08G2101/0008 ,  C08G2101/0058 ,  C08G2101/0083

    摘要： Propylene oxide is added to an active hydrogen compound in the presence of an alkali metal hydroxide catalyst in an amount of from 0.05 to 0.5 mole per mole of the active hydrogen compound at a reaction temperature of from 60 to 98.degree. C. at a reaction pressure less than or equal to 4 kg/cm.sup.2 to prepare a polyoxyalkylene polyol which has a hydroxyl value of from 10 to 35 mg KOH/g, a monool content less than or equal to 15 mol %, a Head-to-Tail bond selectivity greater than or equal to 96 percent, and low viscosity. A polymer polyol is prepared by polymerizing an ethylenically unsaturated monomer in the polyoxyalkylene polyol. A flexible polyurethane foam is prepared by reacting the polyoxyalkylene polyol or the polymer polyol with an organic polyisocyanate compound in the presence of a foaming agent, a catalyst, a surfactant, a crosslinking agent and other additives. The thus-obtained polyurethane foams have less closed cells and are more excellent in properties such as hardness, humid aged compression set and impact resiliency.

    摘要翻译： 在碱金属氢氧化物催化剂的存在下，在反应温度为60至98℃的反应压力下，将环氧丙烷加入到活性氢化合物中，其量为每摩尔活性氢化合物0.05至0.5摩尔 小于或等于4kg / cm 2，以制备羟值为10-35mg KOH / g，一元醇含量小于或等于15mol％的聚氧化烯多元醇，头 - 尾键合选择性更大 大于等于96％，粘度低。 通过在聚氧化烯多元醇中聚合烯属不饱和单体制备聚合物多元醇。 通过在发泡剂，催化剂，表面活性剂，交联剂和其它添加剂的存在下使聚氧化烯多元醇或聚合物多元醇与有机多异氰酸酯化合物反应来制备软质聚氨酯泡沫。 由此获得的聚氨酯泡沫体具有较少的闭孔，并且在诸如硬度，湿老化压缩永久变形和冲击弹性等性能方面更优异。

    Preparation process of polyoxyalkylene polyols and process of alkylene oxide recovery
    4.
    发明授权
    Preparation process of polyoxyalkylene polyols and process of alkylene oxide recovery 失效
    聚氧化烯多元醇的制备方法和环氧烷回收方法

    公开(公告)号：US5468840A

    公开(公告)日：1995-11-21

    申请号：US296604

    申请日：1994-08-29

    申请人： Tomoki Tsutsui ,  Tsukuru Izukawa ,  Kazuhiko Ohkubo ,  Yoshitsugu Sakaki

    发明人： Tomoki Tsutsui ,  Tsukuru Izukawa ,  Kazuhiko Ohkubo ,  Yoshitsugu Sakaki

    IPC分类号： C08G65/30 ,  C08G59/68

    CPC分类号： C08G65/30 ,  Y02P20/584

    摘要： An alkali metal compound such as metallic cesium, cesium hydroxide, cesium hydroxide monohydrate, metallic rubidium, rubidium hydroxide or rubidium hydroxide monohydrate is used as a catalyst, crude polyoxyalkylene polyol containing the catalyst is neutralized with a mineral acid or an organic acid, an aqueous solution layer containing an alkali metal salt is brought into contact with an anion exchange resin to adsorb mineral acid anion or organic acid anion, the alkali metal compound catalyst is recovered. alkylene oxide undergoes ring-opening addition polymerization on an active hydrogen compound in the presence of the recovered alkali metal compound catalyst to prepare polyoxyalkylene polyol, the catalyst is thereafter separated, recovered and reused, and such recycle of the alkali metal compound catalyst provides an economical process.

    摘要翻译： 使用金属铯，氢氧化铯，氢氧化铯一水合物，金属铷，氢氧化铷或氢氧化铷一水合物等碱金属化合物作为催化剂，用无机酸或有机酸中和含有催化剂的粗聚氧化烯多元醇， 使含有碱金属盐的溶液层与阴离子交换树脂接触以吸附无机酸阴离子或有机酸阴离子，回收碱金属化合物催化剂。 在回收的碱金属化合物催化剂的存在下，氧化烯在活性氢化合物上进行开环加成聚合以制备聚氧化烯多元醇，然后分离，回收和重新使用催化剂，并且这种碱金属化合物催化剂的再循环提供了经济的 处理。

    Preparation process for polyoxyalkylene polyol
    5.
    发明授权
    Preparation process for polyoxyalkylene polyol 失效
    聚氧化烯多元醇的制备方法

    公开(公告)号：US5545712A

    公开(公告)日：1996-08-13

    申请号：US518279

    申请日：1995-08-23

    申请人： Tomoki Tsutsui ,  Tsukuru Izukawa ,  Kazuhiko Ohkubo ,  Yoshitsugu Sakaki

    发明人： Tomoki Tsutsui ,  Tsukuru Izukawa ,  Kazuhiko Ohkubo ,  Yoshitsugu Sakaki

    IPC分类号： C08G65/30 ,  C08G59/68

    CPC分类号： C08G65/30 ,  Y02P20/584

    摘要： An alkali metal compound such as metallic cesium, cesium hydroxide, cesium hydroxide monohydrate, metallic rubidium, rubidium hydroxide or rubidium hydroxide monohydrate is used as a catalyst, crude polyoxyalkylene polyol containing the catalyst is neutralized with a mineral acid or an organic acid, an aqueous solution layer containing an alkali metal salt is brought into contact with an anion exchange resin to adsorb mineral acid anion or organic acid anion, the alkali metal compound catalyst is recovered, alkylene oxide undergoes ring-opening addition polymerization on an active hydrogen compound in the presence of the recovered alkali metal compound catalyst to prepare polyoxyalkylene polyol, the catalyst is thereafter separated, recovered and reused, and such recycle of the alkali metal compound catalyst provides an economical process.

    摘要翻译： 使用金属铯，氢氧化铯，氢氧化铯一水合物，金属铷，氢氧化铷或氢氧化铷一水合物等碱金属化合物作为催化剂，用无机酸或有机酸中和含有催化剂的粗聚氧化烯多元醇， 含有碱金属盐的溶液层与阴离子交换树脂接触以吸附无机酸阴离子或有机酸阴离子，回收碱金属化合物催化剂，烯化氧在存在下在活性氢化合物上进行开环加成聚合 的回收的碱金属化合物催化剂以制备聚氧化烯多元醇，然后分离，回收和再利用催化剂，并且这种碱金属化合物催化剂的再循环提供了经济的方法。

    High-durability flexible polyurethane cold cure molded foam and process for producing the same
    9.
    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。