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    • 1. 发明授权
    • Polyether polyol production of a flexible urethane foam and shaped
article therefrom
    • 聚醚多元醇生产柔性聚氨酯泡沫及其成型制品
    • US5367050A
    • 1994-11-22
    • US197321
    • 1994-02-16
    • Yoshihiko TairakaMitsuhiro NishimuraKatsuhisa Kodama
    • Yoshihiko TairakaMitsuhiro NishimuraKatsuhisa Kodama
    • C08G18/50C08G18/63
    • C08G18/506C08G18/632C08G2101/0008C08G2101/0083
    • A polyether polyol produced by using an N-amino-ethylpiperazine-ethylene oxide aduct as an initiator and addition-polymerizing an alkylene oxide thereto and having a molecular weight of about 2000 to 7000; a process for producing a flexible urethane foam starting with the above polyether polyol; a process suited for the production of a hot-cure urethane foam which comprises using the above polyether polyol with a hydroxyl value of 40 to 80 mg KOH/g and, as a blowing agent, 4.6 to 6.0 weight parts of water based on 100 weight parts of the polyol; and a process suited for the production of a cold-cure urethane foam which comprises using the above polyether polyol with a hydroxyl value of 23 to 50 mg KOH/g and, as a blowing agent, 2.5 to 5.0 weight parts of water on the same basis.The use of the polyether polyol enables the production of a low-density, low-hardness flexible urethane foam using a small amount of water, without requiring any environment-unfriendly chlorofluorocarbon and without being accompanied by deterioration of humid age compression set and other characteristics.
    • 通过使用N-氨基 - 乙基哌嗪 - 环氧乙烷加成物作为引发剂并加成聚合烯化氧并分子量为约2000〜7000的聚醚多元醇; 从上述聚醚多元醇开始制造柔性聚氨酯泡沫塑料的方法; 一种适用于生产热固化聚氨酯泡沫的方法,其包括使用上述羟值为40-80mg KOH / g的聚醚多元醇,作为发泡剂,基于100重量份为4.6至6.0重量份的水 部分多元醇; 以及适用于生产冷固化聚氨酯泡沫的方法,该方法包括使用上述羟值为23至50mg KOH / g的聚醚多元醇,作为发泡剂,使用2.5至5.0重量份的水 基础。 使用聚醚多元醇能够使用少量的水生产低密度,低硬度的柔性聚氨酯泡沫,而不需要任何环境不友好的氯氟烃,并且不伴随潮湿压缩永久变形和其它特性的恶化。
    • 3. 发明授权
    • Polyether polyol and rigid polyurethane foam
    • 聚醚多元醇和硬质聚氨酯泡沫
    • US5112876A
    • 1992-05-12
    • US426226
    • 1989-10-25
    • Yoshihiko TairakaKatsumi Inaoka
    • Yoshihiko TairakaKatsumi Inaoka
    • C08G18/48C08G18/50
    • C08G18/4845C08G18/5033C08G2101/0025C08G2101/005
    • The present invention relates to a polyether polyol which is prepared by(i) reacting 3.0 to 4.0 molecular equivalents of ethylene oxide with one molecular equivalent of 2,3- or 3,4-tolylenediamine, or a mixture thereof in the absense of catalyst, and thereafter,(ii) reacting 2.8 to 4.8 molecular equivalents of propylene oxide with one molecular equivalent of the reaction product in the presence of an alkali metal hydroxide in an amount of not more than 0.8% by weight based on the 2,3- or 3,4-tolylenediamine, or the mixture thereof.The present invention also relates to a rigid polyurethane foam which is prepared by reacting a polyol mixture containing not less than 50 wt % of the above-mentioned polyether polyol with an isocyanate. The rigid polyurethane foam is obtained with reduced fron requirements.
    • 本发明涉及一种聚醚多元醇,其通过以下步骤制备:(i)使3.0至4.0分子当量的环氧乙烷与一种分子当量的2,3-或3,4-甲苯二胺或其混合物在催化剂的缺失中反应, 然后,(ii)在碱金属氢氧化物存在下使2.8至4.8分子当量的环氧丙烷与一种分子当量的反应产物反应,其量为不超过0.8重量%,基于2,3-或 3,4-甲苯二胺或其混合物。 本发明还涉及一种刚性聚氨酯泡沫,其通过使含有不少于50重量%的上述聚醚多元醇的多元醇混合物与异氰酸酯反应而制备。 刚性聚氨酯泡沫塑料获得了较少的fron要求。
    • 4. 发明授权
    • Polyether polyol production of a flexible urethane foam and shaped
article therefrom
    • 聚醚多元醇生产柔性聚氨酯泡沫及其成型制品
    • US5332764A
    • 1994-07-26
    • US141942
    • 1993-10-28
    • Yoshihiko TairakaMitsuhiro NishimuraKatsuhisa Kodama
    • Yoshihiko TairakaMitsuhiro NishimuraKatsuhisa Kodama
    • C08G18/50C08G18/63C08G18/00
    • C08G18/506C08G18/632C08G2101/0008C08G2101/0083
    • A polyether polyol produced by using an N-aminoethylpiperazine-ethylene oxide aduct as an initiator and addition-polymerizing an alkylene oxide thereto and having a molecular weight of about 2000 to 7000; a process for producing a flexible urethane foam starting with the above polyether polyol; a process suited for the production of a hot-cure urethane foam which comprises using the above polyether polyol with a hydroxyl value of 40 to 80 mg KOH/g and, as a blowing agent, 4.6 to 6.0 weight parts of water based on 100 weight parts of the polyol; and a process suited for the production of a cold-cure urethane foam which comprises using the above polyether polyol with a hydroxyl value of 23 to 50 mg KOH/g and, as a blowing agent, 2.5 to 5.0 weight parts of water on the same basis.The use of the polyether polyol enables the production of a low-density, low-hardness flexible urethane foam using a small amount of water, without requiring any environment-unfriendly chlorofluorocarbon and without being accompanied by deterioration of humid age compression set and other characteristics.
    • 通过使用N-氨基乙基哌嗪 - 环氧乙烷加成物作为引发剂,加成聚合烯化氧并分子量为约2000〜7000的聚醚多元醇; 从上述聚醚多元醇开始制造柔性聚氨酯泡沫塑料的方法; 一种适用于生产热固化聚氨酯泡沫的方法,其包括使用上述羟值为40-80mg KOH / g的聚醚多元醇,作为发泡剂,基于100重量份为4.6至6.0重量份的水 部分多元醇; 以及适用于生产冷固化聚氨酯泡沫的方法,该方法包括使用上述羟值为23至50mg KOH / g的聚醚多元醇,作为发泡剂,使用2.5至5.0重量份的水 基础。 使用聚醚多元醇能够使用少量的水生产低密度,低硬度的柔性聚氨酯泡沫,而不需要任何环境不友好的氯氟烃,并且不伴随潮湿压缩永久变形和其它特性的恶化。
    • 5. 发明授权
    • Method for production of open cell rigid polyurethane foam
    • 开孔硬质聚氨酯泡沫的生产方法
    • US5318997A
    • 1994-06-07
    • US48513
    • 1993-04-20
    • Kazuo OkadaYoshihiko Tairaka
    • Kazuo OkadaYoshihiko Tairaka
    • C08G18/48C08G18/66C08G18/00
    • C08G18/6688C08G18/4816C08G18/482C08G18/6674C08G2101/0025C08G2101/005C08G2101/0083
    • A method of producing an open cell rigid polyurethane foam which comprises reacting a mixture of polyols having a hydroxyl value of 160-360 mg KOH/g with a polyisocyanate in the presence of water as a blowing agent in an amount of 6-12 parts by weight in relation to 100 parts by weight of the mixture of polyols at an isocyanate index of 70-120, the mixture of polyols comprising:(a) 30-60% by weight of a first polyoxyalkylene polyol having a functionality of 2-3.5, a hydroxyl value of 28-90 mg KOH/g, a polyoxyethylene unit content of not more than 5% by weight, and a primary hydroxyl group content of not more than 15% based on the total of the hydroxyl groups of the first polyoxyalkylene polyol;(b) 30-60% by weight of a second polyoxyalkylene polyol having a functionality of 3-6, a hydroxyl value of 150-500 mg KOH/g, and a primary hydroxyl group content of not more than 5% based on the total of the hydroxyl groups of the second polyoxyalkylene polyol; and(c) 0-25% by weight of a third polyol having a functionality of 2-3, a hydroxyl value of 450-840 mg KOH/g, and a primary hydroxyl group content of not more than 5% based on the total of the hydroxyl groups of the third polyol.
    • 一种开孔硬质聚氨酯泡沫塑料的制造方法,其特征在于,在作为发泡剂的水作为发泡剂存在下,使羟值为160〜360mg KOH / g的多羟基化合物与多异氰酸酯的混合物以6-12份的量 重量相对于100重量份异氰酸酯指数为70-120的多元醇混合物,多元醇混合物包含:(a)30-60重量%的官能度为2-3.5的第一聚氧化烯多元醇, 基于第一聚氧化烯多元醇的总数,羟基值为28〜90mg KOH / g,聚氧乙烯单元含量为5重量%以下,伯羟基含量为15%以下 ; (b)30-60重量%的官能度为3-6的第二聚氧化烯多元醇,羟值为150-500mg KOH / g,伯羟基含量不超过5%,基于总量 的第二聚氧化烯多元醇的羟基; 和(c)0-25重量%的官能度为2-3的第三多元醇,羟值为450-840mg KOH / g,伯羟基含量不超过5% 的第三多元醇的羟基。