Production of flexible polyurethane foams
    21.
    发明授权
    Production of flexible polyurethane foams 失效
    生产柔性聚氨酯泡沫

    公开(公告)号:US06770684B2

    公开(公告)日:2004-08-03

    申请号:US10095734

    申请日:2002-03-12

    IPC分类号: C08G1828

    摘要: The present invention relates to a process for the production of flexible polyurethane foams by reaction of a) at least one compound having at least two isocyanate-reactive hydrogen atoms, with b) polyisocyanates, wherein the compund used as said compound having at least two isocyanate-reactive hydrogen atoms a) comprises at least one block polyoxypropylene/polyoxyethylene/polyol having a hydroxyl value of from 25 to 45 mg KOH/g and a content of terminally bound ethylene oxide units of from 15 to 17 wt %, based on the total amount of the alkylene oxide, obtained by attachment of ethylene oxide and propylene oxide to an initiator having an average functionality of 3.

    摘要翻译: 本发明涉及通过以下方法生产柔性聚氨酯泡沫的方法:a)至少一种具有至少两个异氰酸酯反应性氢原子的化合物与b)多异氰酸酯反应,其中所述化合物用作具有至少两个异氰酸酯反应性 氢原子a)包含至少一种羟基值为25至45mg KOH / g的嵌段聚氧丙烯/聚氧乙烯/多元醇,并且末端结合的环氧乙烷单元的含量为15至17重量%,基于 通过将环氧乙烷和环氧丙烷连接到平均官能度为3的引发剂获得的环氧烷烃。

    Preparation of low-density hydrophilic flexible polyurethane foams
    23.
    发明授权
    Preparation of low-density hydrophilic flexible polyurethane foams 有权
    低密度亲水性柔性聚氨酯泡沫的制备

    公开(公告)号:US06586486B2

    公开(公告)日:2003-07-01

    申请号:US10047640

    申请日:2002-01-15

    IPC分类号: C08G1814

    摘要: Low-density hydrophilic flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if required, further assistants and additives (f), by a process in which the polyetherol mixture (b) consists of b1) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and ethylene oxide, having an ethylene oxide content of more than 40% by weight, based on the total amount of alkylene oxide used, an OH number of from 20 to 120 mg KOH/g and a proportion of primary OH groups of more than 20% and b2) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and, if required, ethylene oxide, the ethylene oxide content being not more than 40% by weight, and having an OH number of more than 25 mg KOH/g, water in amounts of up to 15% by weight, based on the total weight of the components (b) to (f), and a mixture of gel catalysts and blowing catalysts are used and the foaming is effected in an index range of from 20 to 120. Furthermore, the flexible polyurethane foams themselves produced in this manner are used as upholstery material, as energy-absorbing material and in the cosmetics and hygiene sectors.

    摘要翻译: 通过使有机和/或改性的有机多异氰酸酯(a)与聚乙烯醇混合物(b)反应制备低密度亲水性柔性聚氨酯泡沫,并且如果需要,在水的存在下,具有氢原子对异氰酸酯具有反应性的其它化合物(c) 和/或其它发泡剂(d),催化剂(e)以及如果需要的话,其它辅助剂和添加剂(f),其中聚醚醚混合物(b)由以下组分组成的方法组成:b)至少一种基于以下组分的双官能或多官能聚醚 环氧丙烷和/或环氧丁烷和环氧乙烷,其环氧乙烷含量大于40重量%,基于所使用的环氧烷的总量,OH值为20至120mg KOH / g, 基于环氧丙烷和/或环氧丁烷的至少一种双官能或多官能聚醚醚,并且如果需要,环氧乙烷,环氧乙烷含量不超过40重量%,并且具有 OH麻木 呃大于25mg KOH / g,基于组分(b)至(f)的总重量,至多15重量%的水,以及凝胶催化剂和发泡催化剂的混合物,并且 发泡在20至120的指数范围内进行。此外,以这种方式生产的柔性聚氨酯泡沫本身被用作作为能量吸收材料的装饰材料和化妆品和卫生领域。

    Production of flexible polyurethane foams
    24.
    发明授权
    Production of flexible polyurethane foams 失效
    生产柔性聚氨酯泡沫

    公开(公告)号:US06586485B1

    公开(公告)日:2003-07-01

    申请号:US09166995

    申请日:1998-10-06

    IPC分类号: C08G1814

    摘要: In a process for producing flexible polyurethane foams by the reaction known per se of polyisocyanates with compounds containing at least two hydrogen atoms which react with isocyanate, the reaction is carried out in the presence of cyclic or heterocyclic compounds containing at least one reactive hydrogen atom.

    摘要翻译: 在通过本身已知的具有至少两个与异氰酸酯反应的氢原子的化合物的多异氰酸酯反应生产柔性聚氨酯泡沫体的方法中,反应在含有至少一个反应性氢原子的环状或杂环化合物的存在下进行。

    Preparation of flexible, soft polyurethane foams having viscoelastic,
structure-borne soundproofing properties, and polyoxyalkylene-polyol
mixtures which can be used for this purpose
    26.
    发明授权
    Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose 失效
    制备具有粘弹性,结构隔音性能的柔性,软质聚氨酯泡沫,以及可用于此目的的聚氧化烯 - 多元醇混合物

    公开(公告)号:US5420170A

    公开(公告)日:1995-05-30

    申请号:US619265

    申请日:1990-11-28

    IPC分类号: C08G18/48 C08G18/66

    摘要: The present invention relates to a process for the preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties in a temperature range of from -20.degree. C. to +80.degree. C. by reactinga) a polyoxyalkylene-polyol mixture containingai) block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9% by weight of terminal ethylene oxide units, based on the weight of the polyoxypropylene units, prepared by anionic polymerization, at elevated temperatures, of 1,2-propyleneoxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8, comprising water and glycerol and/or trimethylolpropane, and polymerization of acylene oxide onto the resultant polyoxypropylene adduct, andaii) one or more difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85% by weight of oxyethylene units, based on the total weight of polymerized alkylene oxide units, and having a hydroxyl number of from 20 to 80, andb) if desired low-molecular-weight chain extenders withc) organic and/or modified organic polyisocyanates in the presence ofd) catalysts,e) blowing agents, preferably water, and, if desired,f) auxiliaries and/or additives,and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.

    摘要翻译: 本发明涉及一种制备柔软的软质聚氨酯泡沫的方法,该泡沫在-20℃至+ 80℃的温度范围内具有粘弹性结构的隔音性能,通过使a)聚氧化烯 - 多元醇混合物 含有ai)嵌段聚氧丙烯 - 聚氧乙烯 - 多元醇混合物,羟基数为14至65,并含有2至9重量%的末端环氧乙烷单元,基于通过阴离子聚合制备的聚氧丙烯单元的重量,在升高的 温度,1,2-环氧丙烷至平均官能度为2.3至2.8的引发剂分子混合物,包含水和甘油和/或三羟甲基丙烷,以及将芳族氧化物聚合到所得聚氧丙烯加合物上,以及aii)一种或多种双官能 和/或含有60至85重量%的氧化乙烯单元的三官能聚氧丙烯 - 聚氧乙烯 - 多元醇,基于聚合的Al的总重量 环氧乙烷单元,羟值为20至80,和b)如果需要,在d)催化剂存在下,c)有机和/或改性有机多异氰酸酯的低分子增链剂,e)发泡剂, 如果需要,f)助剂和/或添加剂,以及可用于该目的的聚氧化烯 - 多元醇混合物(a)。

    High resilience polyurethane foams comprising castor oil
    28.
    发明授权
    High resilience polyurethane foams comprising castor oil 有权
    包含蓖麻油的高弹性聚氨酯泡沫

    公开(公告)号:US09150684B2

    公开(公告)日:2015-10-06

    申请号:US13478468

    申请日:2012-05-23

    IPC分类号: C08G18/66 C08G101/00

    摘要: A process for producing high resilience flexible polyurethane foams. The process includes forming a mixture of (a) isocyanate prepolymer, (b) polymeric compounds having isocyanate-reactive groups, (c) castor oil, (d) optionally chain-extending and/or crosslinking agents, (e) catalysts, (f) blowing agents, and optionally (g) additives, and reacting the mixture to form the flexible polyurethane foam. More than 5 wt % of (c) is used, based on the total weight of components (b) to (g), and (a) is obtained by mixing diphenylmethane diisocyanate (a1) and polyol 1 (a2) and also optionally further polyols, chain extenders and/or crosslinkers, where (a2) includes a polyalkylene oxide polyol having a hydroxyl number of 30 to 60, an average functionality of 2.3 to 3.2 and a propylene oxide fraction, based on the alkylene oxide content, of 70 to 100 wt %. A polyurethane foam obtained by the process, and the use of such a foam as an auto seat.

    摘要翻译: 用于生产高弹性柔性聚氨酯泡沫的方法。 该方法包括形成(a)异氰酸酯预聚物,(b)具有异氰酸酯反应性基团的聚合化合物,(c)蓖麻油,(d)任选的链延伸和/或交联剂,(e)催化剂,(f )发泡剂和任选的(g)添加剂,并使混合物反应以形成柔性聚氨酯泡沫。 基于组分(b)至(g)的总重量,使用大于5重量%的(c),和(a)通过混合二苯基甲烷二异氰酸酯(a1)和多元醇1(a2) 多元醇,增链剂和/或交联剂,其中(a2)包括羟基数为30至60,平均官能度为2.3至3.2的聚环氧烷多元醇和基于氧化烯含量的环氧丙烷部分为70至 100重量%。 通过该方法获得的聚氨酯泡沫,并且使用这样的泡沫作为汽车座椅。