Treatment for polyether polyols
    1.
    发明授权
    Treatment for polyether polyols 失效
    聚醚多元醇的处理

    公开(公告)号:US06245947B1

    公开(公告)日:2001-06-12

    申请号:US09036758

    申请日:1998-03-09

    IPC分类号: C07C4100

    CPC分类号: C08G65/30

    摘要: A process for treating polyether polyols prepared in a conventional manner by base-catalyzed reaction of H-functional initiator substances with alkylene oxides comprises a combination of a thermal-reactive step at a pH of less than 7 and a temperature above 60° C. and a thermal-distillative step in a countercurrent column using a purifying agent. The polyether polyols prepared according to the invention are used for producing low-fogging and low-odor PUR foams.

    摘要翻译: 以常规方式制备的通过H-官能引发剂物质与环氧烷烃的碱催化反应制备的聚醚多元醇的方法包括pH小于7且温度高于60℃的热反应性步骤的组合,以及 使用净化剂的逆流塔中的热蒸馏步骤。 根据本发明制备的聚醚多元醇用于生产低雾和低气味的PUR泡沫。

    Production of flexible polyurethane foams
    2.
    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:US5925687A

    公开(公告)日:1999-07-20

    申请号:US897114

    申请日:1997-07-18

    摘要: In a process for producing flexible polyurethane foams by reactinga) organic and/or modified organic polyisocyanates withb) relatively high molecular weight compounds containing at least two reactive hydrogen atoms andc) if desired, low molecular weight chain extenders and/or cross linkersin the presence ofd) blowing agents,e) catalysts,f) flame retardants and, if desiredg) further auxiliaries and/or additives,the relatively high molecular weight compounds containing at least two reactive hydrogen atoms (b) comprise at least 10% by weight of polyether polyols which can be prepared by base-catalyzed reaction of lower alkylene oxides with OH-functional initiator substances and are subjected, during or after the molecular addition of alkylene oxide, to a combined thermal/distillative treatment at a water content of at most 0.1% by weight.The flexible PUR foam produced according to the present invention can be used in the automobile and furniture sectors and for producing flexible foam/textile composites.

    摘要翻译: 在通过使a)有机和/或改性的有机多异氰酸酯与b)含有至少两个反应性氢原子的相对高分子量化合物反应生产柔性聚氨酯泡沫体的方法中,和c)如果需要,低分子量增链剂和/或交联剂 在d)发泡剂的存在下,e)催化剂,f)阻燃剂,如果需要,g)另外的助剂和/或添加剂,含有至少两个反应性氢原子的相对高分子量化合物(b)包含至少10 可以通过低级环氧烷与OH官能引发剂物质的碱催化反应制备的聚醚多元醇的重量%,并且在分散加入环氧烷的过程中或之后,以含水量的组合热/蒸馏处理 为0.1重量%以下。 根据本发明生产的柔性PUR泡沫可以用于汽车和家具领域,并用于生产柔性泡沫/织物复合材料。

    Preparation of polyether polyols containing aromatics
    3.
    发明授权
    Preparation of polyether polyols containing aromatics 失效
    含芳烃的聚醚多元醇的制备

    公开(公告)号:US5895824A

    公开(公告)日:1999-04-20

    申请号:US659850

    申请日:1996-06-07

    摘要: In a process for preparing polyether polyols containing aromatics by molecular addition of alkylene oxides to H-functional initiators at from 70.degree. C. to 135.degree. C. and pressures of from 0.1 MPa to 1.0 MPa, the alkoxylation is carried out using at least one initiator comprising at least 95% by weight of 2,3 and 3,4 isomers of tolylenediamine, from 0.5 to 4% by weight of 2,4 and 2,6 isomers of tolylenediamine and from 0.1 to 1.5% by weight of more volatile fractions from tolylenediamine production. The polyether polyols prepared by this process can be used as component of a polyol mixture for producing rigid polyurethane foams.

    摘要翻译: 在通过在70℃至135℃下向H-官能引发剂分子加成氧化烯制备含有芳烃的聚醚多元醇和0.1MPa至1.0MPa的压力的方法中,烷氧基化使用至少一种 引发剂包括至少95重量%的甲苯二胺的2,3和3,4异构体,0.5至4重量%的2,4-和2,6-甲苯二胺异构体和0.1至1.5重量%的更多挥发性组分 从甲苯二胺生产。 通过该方法制备的聚醚多元醇可用作多元醇混合物的组分,用于生产刚性聚氨酯泡沫体。

    Preparation of polyurethanes having improved curing
    4.
    发明授权
    Preparation of polyurethanes having improved curing 失效
    改进固化的聚氨酯的制备

    公开(公告)号:US6100308A

    公开(公告)日:2000-08-08

    申请号:US900497

    申请日:1997-07-25

    摘要: Polyurethanes having improved curing are prepared by reactinga) organic and/or modified organic diisocyanates and/or polyisocyanates withb) polyether polyols based on aromatic amines, able to be prepared by reacting specific amine combinations and, if desired, further coinitiators in a stage wise molecular addition of alkylene oxide, and also, if desired, further relatively high molecular weight compounds containing at least two reactive hydrogen atoms and, if desired,c) low molecular weight chain extenders and/or crosslinkers in the presence ofd) blowing agents,e) catalysts and, if desired,f) further auxiliaries and/or additives,wherein the specific amine combination used is a mixture of amines of the diphenylmethane series consisting of from 5 to 20% by weight of 4-ring amine, from 15 to 30% by weight of 3-ring amine, from 20 to 35% by weight of amines having more than 4 rings and from 25 to 50% by weight of 2-ring amine, wherein the proportions add up to 100% by weight, in combination with further aromatic amines.

    摘要翻译: 具有改进的固化的聚氨酯通过使a)有机和/或改性的有机二异氰酸酯和/或多异氰酸酯与b)基于芳族胺的聚醚多元醇反应制备,所述聚醚多元醇可以通过使特定的胺组合反应制备,如果需要, 并且如果需要,还含有至少两个反应性氢原子的进一步相对高分子量化合物,如果需要,c)在d)发泡剂存在下的低分子量增链剂和/或交联剂 ,e)催化剂,如果需要,f)其它助剂和/或添加剂,其中所用的特定胺组合是由5至20重量%的4-环胺组成的二苯基甲烷系列的胺的混合物,15 至30重量%的3-环胺,20至35重量%的具有多于4个环的胺和25至50重量%的2-环胺,其中所述比例加至100重量% 在公司 与进一步的芳香胺混合。

    Aqueous polyurethane dispersions containing structural units derived
from alkenyl- or alkylsuccinic acid
    5.
    发明授权
    Aqueous polyurethane dispersions containing structural units derived from alkenyl- or alkylsuccinic acid 失效
    含有衍生自链烯基或烷基琥珀酸的结构单元的水性聚氨酯分散体

    公开(公告)号:US5852104A

    公开(公告)日:1998-12-22

    申请号:US789539

    申请日:1997-01-27

    摘要: Aqueous dispersions containing a polyurethane built up from a) diisocyanates having 4 to 30 carbon atoms, b) diols, of which b.1) from 10 to 100 mol %, based on the total amount of the diols (b), have a molecular weight of from 500 to 5000 and are built up from b1.1) (C.sub.4 - to C.sub.30 -alkyl)succinic acid and/or (C.sub.4 - to C.sub.30 -alkenyl)succinic acid, b1.2) from 0 to 60 mol %, based on component (b1.1), of a dicarboxylic acid which is different from component (b1.1), and b1.3) a diol having a molecular weight of from 60 to 500 g/mol, b.2) from 0 to 90 mol %, based on the total amount of the diols (b), have a molecular weight of from 60 to 500 g/mol, and b.3) from 0 to 90 mol %, based on the total amount of the diols (b), have a molecular weight of from 500 to 5000 g/mol and are different from (b1), c) monomers which are different from the monomers (a) and (b) and contain at least 2 isocyanate groups or at least 2 isocyanate-reactive groups and which in addition carry at least one hydrophilic group or a potentially hydrophilic group, thus achieving the water-dispersibility of polyurethanes, d) if desired, further polyfunctional compounds which are different from the monomers (a) to (c) and contain reactive groups which are alcoholic hydroxyl groups, primary or secondary amino groups or isocyanate groups, and e) if desired, monofunctional compounds which are different from the monomers (a) to (c) and contain one reactive group, which is an alcoholic hydroxyl group, a primary or secondary amino group or an isocyanate group.

    摘要翻译: 含有a)的水性分散体,其由a)具有4〜30个碳原子的二异氰酸酯组成,b)二醇,其中b.1)为10〜100摩尔%,基于二醇(b)的总量,具有分子量 重量从500至5000,由b1.1)(C4-至C30-烷基)琥珀酸和/或(C4-至C30-烯基)琥珀酸,b1.2)为0至60摩尔% 基于组分(b1.1)的不同于组分(b1.1)的二羧酸,和b1.3)分子量为60至500g / mol的二醇,b.2)为0 相对于二醇(b)的总量为90摩尔%,分子量为60〜500g / mol,b.3为0〜90摩尔%,基于二醇 (b)具有500至5000g / mol的分子量并且不同于(b1),c)不同于单体(a)和(b)并且含有至少2个异氰酸酯基团或至少 2个异氰酸酯反应性基团,并且另外携带至少一个亲水基团 或潜在的亲水性基团,从而达到聚氨酯的水分散性,d)如果需要,还有与单体(a)至(c)不同的多官能化合物,并且含有醇羟基的反应性基团,伯或仲氨基 基团或异氰酸酯基,以及e)如果需要,与单体(a)至(c)不同且含有一个反应性基团(其为醇羟基,伯或仲氨基或异氰酸酯基团)的单官能化合物。

    Production of rigid polyurethane foams
    6.
    发明授权
    Production of rigid polyurethane foams 失效
    生产刚性聚氨酯泡沫

    公开(公告)号:US5552450A

    公开(公告)日:1996-09-03

    申请号:US229255

    申请日:1994-04-18

    摘要: A process for the production of rigid polyurethane foams involves reactinga) organic and/or modified organic polyisocyanates withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) low-molecular-weight chain extenders and/or cross-linking agents,in the presence ofd) blowing agents,e) catalysts and, if desired,f) assistants and/or additives,where the relatively high-molecular-weight compounds (b) containing at least two reactive hydrogen atoms are polyoxypropylene-polyols and/or polyoxyethylene-polyoxy-propylene-polyols containing up to 20% by weight, based on the weight of the alkylene oxide units, of pendant oxyethylene units containing secondary hydroxyl groups and having a functionality of from 3.8 to 4.1, a hydroxyl number of from 385 to 410 mg of KOH/g and a viscosity of from 1700 to 2400 mPa.multidot.s at 25.degree. C., and which can be prepared by anionic polymerization of 1,2-propylene oxide and, if desired, ethylene oxide on an initiator molecule mixture comprising sucrose, pentaerythritol and diethylene glycol.

    摘要翻译: 用于生产刚性聚氨酯泡沫的方法包括使a)有机和/或改性的有机多异氰酸酯与b)至少一种含有至少两个反应性氢原子的相对高分子量化合物反应,如果需要,c) 分子量增链剂和/或交联剂,在d)发泡剂的存在下,e)催化剂,如果需要,f)助剂和/或添加剂,其中相对高分子量的化合物(b) 含有至少两个反应性氢原子的是聚氧丙烯 - 多元醇和/或聚氧乙烯 - 聚氧丙烯 - 多元醇,其含有基于烯化氧单元重量的至多20重量%的含有仲羟基的侧面氧乙烯单元并具有 官能度为3.8至4.1,羟基数为385至410mg KOH / g,25℃时粘度为1700至2400 mPax,可通过1,2-环氧丙烷的阴离子聚合制备 如果需要, 包含蔗糖,季戊四醇和二甘醇的引发剂分子混合物上的氧化亚苯基。