Preparation of polyether polyols containing aromatics
    1.
    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。

    Treatment for polyether polyols
    2.
    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。

    Prepolymers containing isocyanate groups
    3.
    发明授权
    Prepolymers containing isocyanate groups 失效
    含异氰酸酯基团的预聚物

    公开(公告)号:US5556891A

    公开(公告)日:1996-09-17

    申请号:US551508

    申请日:1995-11-01

    摘要: The invention relates to prepolymers containing isocyanate groups which can be prepared by reactinga) organic isocyanates withb) polyetherols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400 and/or polyesterols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400,c) isocyanate-reactive compounds which are at least difunctional and have molecular weights of from 18 to 399, and, if desired,d) Lewis and/or Bronsted acidic compounds ande) conventional auxiliaries and additives, such as antioxidants, light stabilizers or fillers,wherein at least one aromatic aminopolyether alcohol of the formula ##STR1## where R is aryl, alkylaryl containing one or more C.sub.1 - to C.sub.4 -alkyl groups, haloaryl, nitroaryl or cyanoaryl,R' and R" are identical or different and are, independently of one another, hydrogen, alkyl, aryl, aralkyl, alkoxyalkyl, alkoxyaryl or aroxyaryl,x and y are independent of one another andx+y.gtoreq.10,z is from 1 to 4,is employed as a further component, their preparation and their use for the preparation of compact or cellular polyurethanes.

    摘要翻译: 本发明涉及含有异氰酸酯基团的预聚物,其可通过以下方法制备:a)有机异氰酸酯与b)每分子含有至少2个羟基并且分子量大于400的聚醚酯和/或每分子含有至少2个羟基的聚酯 并且具有大于400的分子量,c)异氰酸酯反应性化合物,其至少是双官能的并且具有18至399的分子量,并且如果需要,d)路易斯和/或Br + E,uml o + EE nsted 酸性化合物和e)常规助剂和添加剂,例如抗氧化剂,光稳定剂或填料,其中至少一种下式的芳族氨基聚醚醇,其中R是芳基,含有一个或多个C 1〜C 4 - 烷基的烷基芳基, 卤代芳基,硝基芳基或氰基芳基,R'和R“相同或不同,彼此独立地为氢,烷基,芳基,芳烷基,烷氧基烷基,烷氧基芳基或芳酰基,x和y独立 并且x + y> / = 10,z为1至4,被用作另外的组分,它们的制备及其用于制备紧密或细胞聚氨酯的用途。

    Prepolymers containing isocyanate groups
    4.
    发明授权
    Prepolymers containing isocyanate groups 失效
    含异氰酸酯基团的预聚物

    公开(公告)号:US5530154A

    公开(公告)日:1996-06-25

    申请号:US442739

    申请日:1995-05-17

    摘要: The invention relates to prepolymers containing isocyanate groups which can be prepared by reactinga) organic isocyanates withb) polyetherols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400 and/or polyesterols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400,c) isocyanate-reactive compounds which are at least difunctional and have molecular weights of from 18 to 399, and, if desired,d) Lewis and/or Bronsted acidic compounds ande) conventional auxiliaries and additives, such as antioxidants, light stabilizers or fillers,wherein at least one aromatic aminopolyether alcohol of the formula ##STR1## where R is aryl, alkylaryl containing one or more C.sub.1 - to C.sub.4 -alkyl groups, haloaryl, nitroaryl or cyanoaryl,R' and R" are identical or different and are, independently of one another, hydrogen, alkyl, aryl, aralkyl, alkoxyalkyl, alkoxyaryl or aroxyaryl,x and y are independent of one another andx+y.ltoreq.10,Z is from 1 to 4,is employed as a further component, their preparation and their use for the preparation of compact or cellular polyurethanes.

    摘要翻译: 本发明涉及含有异氰酸酯基团的预聚物,其可通过以下方法制备:a)有机异氰酸酯与b)每分子含有至少2个羟基并且分子量大于400的聚醚酯和/或每分子含有至少2个羟基的聚酯 并且具有大于400的分子量,c)异氰酸酯反应性化合物,其至少是双官能的并且具有18至399的分子量,并且如果需要,d)路易斯和/或布朗斯台德酸性化合物,和e)常规助剂和 添加剂,例如抗氧化剂,光稳定剂或填料,其中至少一种下式的芳族氨基聚醚醇,其中R是芳基,含有一个或多个C 1至C 4烷基的烷基芳基,卤代芳基,硝基芳基或氰基芳基,R' 和R“相同或不同,彼此独立地为氢,烷基,芳基,芳烷基,烷氧基烷基,烷氧基芳基或芳酰基,x和y独立于一个 其中x和y +为10,Z为1至4,用作另外的组分,它们的制备及其用于制备紧密或细胞聚氨酯的用途。

    METHOD FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS
    5.
    发明申请
    METHOD FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS 审中-公开
    用于生产刚性聚氨酯泡沫塑料的方法

    公开(公告)号:US20090306238A1

    公开(公告)日:2009-12-10

    申请号:US12513446

    申请日:2007-11-05

    IPC分类号: C08G18/06 C07C41/01

    摘要: Process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, wherein the compounds having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polyether alcohol bi) which can be prepared by reacting aromatic amines with ethylene oxide and propylene oxide, with firstly propylene oxide and then ethylene oxide or a mixture of ethylene oxide and propylene oxide being added on in a first process step and the remaining amount of propylene oxide being added on in a second process step using a basic catalyst.

    摘要翻译: 通过使a)多异氰酸酯与b)在c)发泡剂存在下具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物来制备硬质聚氨酯泡沫体的方法,其中具有至少两个对异氰酸酯具有反应性的氢原子的化合物 基团包含至少一个聚醚醇bi),其可以通过芳族胺与环氧乙烷和环氧丙烷反应,首先在第一工艺步骤中加入环氧丙烷,然后加入环氧乙烷或环氧乙烷和环氧丙烷的混合物, 在使用碱性催化剂的第二工艺步骤中加入环氧丙烷的剩余量。

    THERMOPLASTIC POLYURETHANES AND THEIR USE
    6.
    发明申请
    THERMOPLASTIC POLYURETHANES AND THEIR USE 审中-公开
    热塑性聚氨酯及其用途

    公开(公告)号:US20090192274A1

    公开(公告)日:2009-07-30

    申请号:US12358360

    申请日:2009-01-23

    IPC分类号: C08L75/04

    摘要: Thermoplastic polyurethanes and molding compositions containing the same having improved surface resistance (writing and scratch resistance) and good industrial processability, and the use thereof, such polyurethanes prepared by reacting: (a) one or more organic diisocyanates; (b) a chain extender comprising at least one low molecular weight polyol having on average at least 1.8 and not more than 3.0 Zerewitinoff-active hydrogen atoms and a number-average molecular weight Mn of 60 to 400 g/mol; and (c) at least one polyol component having a number-average molecular weight Mn of 450 to 10,000 g/mol and on average from at least 1.8 to not more than 3.0 Zerewitinoff-active hydrogen atoms; wherein the ratio of the number of isocyanate groups in component (a) to the number of isocyanate-reactive groups in components (b) and (c) is 0.9:1 to 1.1:1; in the presence of (d) a mixture of polyorganosiloxanes of the general formula (R2SiO)n, in an amount of 0.4 to 10 wt. % based on the thermoplastic polyurethane, wherein each R independently represents an organic hydrocarbon radical having 1 to 27 carbon atoms which can be linear and/or branched, and n represents an integer of 3 to 6000, wherein the mixture consists of (d1) 0.2 to 2 wt. %, based on the thermoplastic polyurethane, of one or more polyorganosiloxanes (R2SiO)n wherein n=3 to 300 and (d2) 0.2 to 8 wt. %, based on the thermoplastic polyurethane, of one or more polyorganosiloxanes (R2SiO)n wherein n=1000 to 6000.

    摘要翻译: 热塑性聚氨酯和含有该组合物的模塑组合物具有改善的表面电阻(书写和耐刮擦性)和良好的工业加工性能,以及其用途,通过以下方法制备的聚氨酯:(a)一种或多种有机二异氰酸酯; (b)含有至少一种至少一种低分子量多元醇的扩链剂,其平均具有至少1.8并且不超过3.0的齐维诺芬 - 活性氢原子,数均分子量Mn为60-400g / mol; 和(c)至少一种数均分子量Mn为450〜10,000g / mol,平均从至少1.8以上3.0以下的三烯乙基活性氢原子的多元醇成分; 其中组分(a)中异氰酸酯基数与组分(b)和(c)中异氰酸酯反应性基团数目的比例为0.9:1至1.1:1; 在(d)通式(R2SiO)n的聚有机硅氧烷的混合物存在下,其量为0.4-10wt。 %,其中每个R独立地表示可以是直链和/或支链的具有1至27个碳原子的有机烃基,n表示3至6000的整数,其中该混合物由(d1)0.2 至2重量% %,基于热塑性聚氨酯,一种或多种聚有机硅氧烷(R2SiO)n,其中n = 3至300和(d2)0.2至8wt。 %,基于热塑性聚氨酯,一种或多种聚有机硅氧烷(R2SiO)n,其中n = 1000至6000。

    Method for producing polyether alcohols
    8.
    发明授权
    Method for producing polyether alcohols 有权
    聚醚醇的制造方法

    公开(公告)号:US07750191B2

    公开(公告)日:2010-07-06

    申请号:US11570794

    申请日:2005-06-22

    IPC分类号: C07C43/00 C08G18/00

    摘要: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.

    摘要翻译: 本发明提供一种通过使用DMC催化剂向环氧化物加成烯键式氧化物连续制备聚醚醇的方法,该方法包括以下步骤:a)通过连续计量H-功能起始物质,烯化氧或混合物来制备前体 的至少两种烯化氧和所需量的DMC催化剂进入连续反应器,b)从反应器中连续地从步骤a)中取出前体,c)连续计量来自步骤a)的产物,不同于 步骤a)或至少两种不同于步骤a)中的环氧烷烃的混合物,如果合适的话,将所需量的DMC催化剂加入另外的连续反应器中。