Use of low unsaturated polyether polyols in slabstock foam applications
    1.
    发明授权
    Use of low unsaturated polyether polyols in slabstock foam applications 失效
    在块状泡沫塑料应用中使用低不饱和聚醚多元醇

    公开(公告)号:US06344494B1

    公开(公告)日:2002-02-05

    申请号:US09579239

    申请日:2000-05-24

    IPC分类号: C08G1814

    摘要: The present invention discloses a method for the formation of a flexible slabstock polyurethane foam having substantially improved indentation force deflection and resilience characteristics while maintaining the other physical properties. The method comprises the steps of reacting a triol polyoxyalkylene polyether polyol having a plurality of internal blocks formed from oxyalkylene monomers with a plurality of terminal caps comprising ethylene oxide attached to said plurality of internal blocks, the internal blocks containing at least 80% by weight propylene oxide based on the total weight of all of the oxyalkylenes in said internal blocks and the amount of ethylene oxide in the terminal caps comprising from 5 to 25% by weight based on the total weight of the polyol, said polyol having a degree of unsaturation of less than or equal to 0.015 meq/g KOH with a polyisocyanate component in the presence of a catalyst and water as a blowing agent at a level of between 3 to 7% by weight.

    摘要翻译: 本发明公开了一种用于形成柔性板状聚氨酯泡沫的方法,其具有显着改善的压痕力偏转和弹性特性,同时保持其它物理特性。 该方法包括使具有多个由氧化烯单体形成的多个内部嵌段的三醇聚氧化烯聚醚多元醇与多个连接到所述多个内部嵌段上的环氧乙烷的端帽反应的步骤,内部嵌段含有至少80重量%的丙烯 氧化物,基于所述内部嵌段中所有的氧化烯的总重量,末端盖中的环氧乙烷的量为5至25重量%,基于多元醇的总重量,所述多元醇的不饱和度为 在催化剂存在下,多异氰酸酯成分的含量小于或等于0.015meq / g KOH,发泡剂水为3〜7重量%。

    Physical properties of sealants using polyols with reduced unsaturation
    2.
    发明授权
    Physical properties of sealants using polyols with reduced unsaturation 失效
    使用具有降低的不饱和度的多元醇的密封剂的物理性质

    公开(公告)号:US6077926A

    公开(公告)日:2000-06-20

    申请号:US899409

    申请日:1997-07-23

    摘要: There is now provided a sealant and elastomer made with a polyol having an unsaturation level of 0.04 to 0.07, manufactured with a basic salt of an alkaline earth metal or a basic salt of cesium, such as cesium hydroxide. The elastomers and sealants made therefrom exhibit an increasing modulus of elasticity when strained from 100 percent elongation to 300 percent elongation. The reduced unsaturation polyols are simple and inexpensive to make while imparting good physical properties to the sealants and elastomers.

    摘要翻译: 现在提供了用碱土金属的碱式盐或铯的碱性盐如氢氧化铯制造的具有0.04至0.07的不饱和度水平的多元醇制成的密封剂和弹性体。 由其制成的弹性体和密封剂在从100%伸长率伸长到300%伸长时表现出增加的弹性模量。 降低的不饱和多元醇在赋予密封剂和弹性体的良好物理性能的同时制备简单且便宜。

    Process for the preparation of polyether-ester polyols
    6.
    发明授权
    Process for the preparation of polyether-ester polyols 失效
    制备聚酯 - 酯多元醇的方法

    公开(公告)号:US4535178A

    公开(公告)日:1985-08-13

    申请号:US426306

    申请日:1982-09-29

    申请人: Curtis J. Reichel

    发明人: Curtis J. Reichel

    IPC分类号: C07C67/08

    CPC分类号: C07C67/08

    摘要: Polyether-ester polyols are prepared by reacting a polyether polyol, tetrahydrophthalic anhydride and an alkylene oxide in the presence of a catalyst selected from the group consisting of calcium naphthenate and cobalt naphthenate. These polyols may be used in preparing polyurethane products.

    摘要翻译: 聚醚酯多元醇通过在选自环烷酸钙和环烷酸钴的催化剂存在下使聚醚多元醇,四氢邻苯二甲酸酐和环氧烷烃反应来制备。 这些多元醇可用于制备聚氨酯产品。

    Sealants made using low unsaturation polyoxyalkylene polyether polyols
    9.
    发明授权
    Sealants made using low unsaturation polyoxyalkylene polyether polyols 失效
    使用低不饱和度的聚氧化烯聚醚多元醇制成的密封剂

    公开(公告)号:US6103850A

    公开(公告)日:2000-08-15

    申请号:US754565

    申请日:1996-11-21

    摘要: There is provided an sealant made with an isocyanate or hydroxyl terminated prepolymer made by reacting a stoichiometric excess of an organic polyisocyanate with polyols made of at least a polyoxyalkylene polyether triol or a mixture thereof with a polyoxyalkylene polyether diol. The triol or diol has within its structure the nucleus of an initiator compound, an internal blocks of oxypropylene groups, and external blocks of oxyalkylene groups, wherein the internal blocks of oxypropylene are between said nucleus and said external blocks, said external blocks are made of oxyalkylene groups derived from a C.sub.4 or higher alkylene oxide. The amount of the internal blocks of oxypropylene groups is from 25 weight percent to 80 weight percent based on the weight of all oxyalkylene groups and initiator in the prepolymer The triol or diol has a compatibility index of 25.degree. C. or less, and may be part of a two component or a one component moisture cured sealant.

    摘要翻译: 提供了由异氰酸酯或羟基封端的预聚物制成的密封剂,其通过使化学计量过量的有机多异氰酸酯与由聚氧化烯聚醚三醇或其与聚氧化烯聚醚二醇的混合物制成的多元醇反应制备。 三醇或二醇在其结构内具有引发剂化合物的核,氧化丙烯基的内部嵌段和氧化烯基的外部嵌段,其中氧化丙烯的内部嵌段位于所述核和所述外部嵌段之间,所述外部嵌段由 衍生自C4或更高级烯化氧的氧化烯基。 基于所有氧化烯基团的重量和预聚物中的引发剂,氧化丙烯基团的内部嵌段的量为25重量%至80重量%。三醇或二醇的相容指数为25℃以下,可以为 一部分是双组分或一种组分的湿气固化密封剂。

    Polyol compositions having good flow and water blown rigid polyurethane
foams made thereby having good dimensional stability
    10.
    发明授权
    Polyol compositions having good flow and water blown rigid polyurethane foams made thereby having good dimensional stability 失效
    具有良好流动性和水泡性的多元醇组合物由此制成,由此具有良好的尺寸稳定性

    公开(公告)号:US5798533A

    公开(公告)日:1998-08-25

    申请号:US528138

    申请日:1995-04-21

    摘要: A polyol composition is provided which when reacted with and organic isocyanate, has good flow characteristics and makes an all water blown rigid polyurethane foam having good dimensional stability at low core densities of 1.1 pcf to 2.0 pcf. The polyol composition has a polyol component which must have present a polyoxyalkylene polyether polyol having an equivalent weight of 130 or less, an average functionality of 3.1 or greater, and a hydroxyl number of 400 or more, a polyoxyalkylene polyether polyol having an average functionality from 1.5 to 3.1 and a viscosity of less than 800 cP at 25.degree. C., and a polyoxyalkylene polyether polyol having an average functionality of greater than 3.1 and an equivalent weight of greater than 130. The polyol composition also has water as the blowing agent, and further contains a blow catalyst, a delayed action gel catalyst, and preferably a cure catalyst and a surfactant.

    摘要翻译: 提供多元醇组合物,其与异氰酸酯和有机异氰酸酯反应时具有良好的流动特性,并且在低芯密度为1.1 pcf至2.0 pcf时制成具有良好尺寸稳定性的全水喷硬质聚氨酯泡沫。 多元醇组合物具有多元醇成分,该多元醇成分必须具有当量重量为130以下,平均官能度为3.1以上,羟值为400以上的聚氧亚烷基聚醚多元醇,聚氧亚烷基聚醚多元醇的平均官能度为 在25℃下粘度小于800cP,平均官能度大于3.1且当量重量大于130的聚氧化烯聚醚多元醇。多元醇组合物还具有水作为发泡剂, 并且还含有吹塑催化剂,延迟作用凝胶催化剂,优选固化催化剂和表面活性剂。