Equilibrium reaction and gas/liquid reaction in a loop reactor
    1.
    发明授权
    Equilibrium reaction and gas/liquid reaction in a loop reactor 失效
    环流反应器中的平衡反应和气/液反应

    公开(公告)号:US07312364B2

    公开(公告)日:2007-12-25

    申请号:US11327599

    申请日:2006-01-06

    IPC分类号: C07C41/03

    摘要: The invention relates to a process for simultaneously performing two chemically successive reactions in a loop reactor, specifically reaction I) an optionally catalyzed equilibrium reaction between high-boiling liquid reactants, in which essentially one high boiler is formed as an intermediate and at least one low boiler as a by-product, and reaction II) a substantially diffusion-controlled reaction in which the liquid intermediate is reacted with at least one gaseous reactant to give the end product, wherein reactions (I) and (II), optionally after a start phase, are allowed to proceed simultaneously in the same apparatus, specifically loop reactor, and the loop reactor has a connectable gas-liquid circulation system coupled via an ejector mixing nozzle, in which circulated liquid phase is mixed in the ejector mixing nozzle with newly supplied gaseous reactant of reaction (II) (6) and/or gaseous reactant of reaction (II) aspirated by means of the ejector from the reactor via a connectable condenser (5), and fed to the reactor by a liquid jet ejector (2) for the reaction, the low-boiling by-product(s) of reaction (I) and also any low-boiling solvent being condensed and discharged in the condenser continuously over the duration of the process. In particular, the invention relates to a process for etherifying high-boiling polyether alcohols.

    摘要翻译: 本发明涉及在环流反应器中同时进行两个化学连续反应的方法,特别是反应I)在高沸点液体反应物之间任选催化的平衡反应,其中基本上形成一个高沸点物作为中间体和至少一个低 锅炉作为副产物,反应II)基本上扩散控制的反应,其中液体中间体与至少一种气态反应物反应以产生最终产物,其中反应(I)和(II)任选地在起始之后 相位允许在同一装置中,特别是环管反应器中,并且环路反应器具有通过喷射混合喷嘴连接的可连接气液循环系统,其中循环液相在喷射混合喷嘴中混合, 反应(II)(6)的气态反应物和/或反应(II)的气体反应物通过喷射器通过连接从反应器吸出 c)冷凝器(5),并通过用于反应的液体喷射器(2),反应(I)的低沸点副产物以及任何低沸点溶剂冷凝和排出到反应器中 冷凝器在过程持续时间内持续。 特别地,本发明涉及醚化高沸点聚醚醇的方法。

    Polysiloxane-polyoxyalkylene block copolymers with different
polyoxyalkylene blocks in the average molecule
    2.
    发明授权
    Polysiloxane-polyoxyalkylene block copolymers with different polyoxyalkylene blocks in the average molecule 失效
    在平均分子中具有不同聚氧化烯嵌段的聚硅氧烷 - 聚氧化烯嵌段共聚物

    公开(公告)号:US5306737A

    公开(公告)日:1994-04-26

    申请号:US112504

    申请日:1993-08-26

    CPC分类号: C08G77/46

    摘要: Polysiloxane-polyoxyalkylene block copolymers having different polyoxyalkylene blocks in the average molecule are prepared. The mixture of the polyoxyalkylene blocks consists of at least one polyoxyalkylene group A and at least one polyoxyalkylene group B and/or at least one polyoxyalkylene group C, each polyoxyalkylene group A having an average molecular weight of 600 to 5,500 and consisting of 20 to 90% by weight of oxyethylene units and 80 to 10% by weight of oxypropylene units, polyoxyalkylene group B having an average molecular weight of 500 to 5,000 and consisting of 2 to 19% by weight of oxyethylene units and 98 to 81% by weight of oxypropylene units, polyoxyalkylene group C having an average molecular weight of 1,500 to 4,500 and consisting of oxypropylene units. Up to 20% by weight of the oxypropylene units is replaceable by oxybutylene units and the molar ratio of polyoxyalkylene groups A to the sum of the polyoxyalkylene groups B and C is 1:4 to 4:1. The block copolymers are highly effective stabilizers for the production of flexible polyurethane foams with an excellent ratio of cell fineness of the foam to air permeability of the foam.

    摘要翻译: 制备平均分子中具有不同聚氧化烯嵌段的聚硅氧烷 - 聚氧化烯嵌段共聚物。 聚氧化烯嵌段的混合物由至少一个聚氧化烯基团A和至少一个聚氧化烯基团B和/或至少一个聚氧化烯基团C组成,每个聚氧化烯基团A的平均分子量为600-5,500并且由20至90 重量%的氧化乙烯单元和80〜10重量%的氧化丙烯单元,聚氧化烯基B的平均分子量为500〜5000,由2〜19重量%的氧化乙烯单元和98〜81重量%的氧化丙烯 单元,平均分子量为1500〜4500的聚氧化烯基C,由氧化丙烯单元构成。 高达20重量%的氧化丙烯单元可以由氧丁烯单元替代,聚氧化烯基团A与聚氧化烯基团B和C之和的摩尔比为1:4至4:1。 嵌段共聚物是用于生产具有优异的泡沫细胞细度与泡沫的透气性的柔性聚氨酯泡沫塑料的高效稳定剂。

    Method for the preparation of flexible polyurethane foams with reduced
hardness comprising adding a hydroxycarboxylic acid salt
    3.
    发明授权
    Method for the preparation of flexible polyurethane foams with reduced hardness comprising adding a hydroxycarboxylic acid salt 失效
    制备具有降低包含增加羟基羧酸盐的硬度的柔性聚氨酯泡沫的方法

    公开(公告)号:US5132333A

    公开(公告)日:1992-07-21

    申请号:US746127

    申请日:1991-08-15

    摘要: A method for the preparation of flexible foams containing urethane groups and having a reduced hardness is disclosed. Polyethers, having at least two hydroxyl groups and a molecular weight of 400 to 12,000 are reacted with polyisocyanates in the presence of catalysts and water and, optionally, in the presence of emulsifiers, stabilizers, cross linking agents, blowing agents and conventional auxiliaries and additives. The method is carried out in the presence of 0.01 to 1.0 parts by weight, based on 100 parts by weight of the polyol, of the alkali salt or the alkaline earth metal salt of a hydroxycarboxylic acid. The method enables the use of chlorofluorocarbons to be omitted largely or completely as physical blowing agents.

    摘要翻译: 公开了一种制备含有氨基甲酸酯基并具有降低的硬度的柔性泡沫的方法。 具有至少两个羟基并且分子量为400至12,000的聚醚在催化剂和水的存在下和任选地在乳化剂,稳定剂,交联剂,发泡剂和常规助剂和添加剂的存在下与多异氰酸酯反应 。 基于100重量份的多元醇,碱金属盐或羟基羧酸的碱土金属盐,在0.01〜1.0重量份的存在下进行。 该方法能够大大或完全地作为物理发泡剂来使用氯氟烃。

    Equilibrium reaction and gas/liquid reaction in a loop reactor
    4.
    发明申请
    Equilibrium reaction and gas/liquid reaction in a loop reactor 失效
    环流反应器中的平衡反应和气/液反应

    公开(公告)号:US20060155152A1

    公开(公告)日:2006-07-13

    申请号:US11327599

    申请日:2006-01-06

    IPC分类号: C07C41/03

    摘要: The invention relates to a process for simultaneously performing two chemically successive reactions in a loop reactor, specifically reaction I) an optionally catalyzed equilibrium reaction between high-boiling liquid reactants, in which essentially one high boiler is formed as an intermediate and at least one low boiler as a by-product, and reaction II) a substantially diffusion-controlled reaction in which the liquid intermediate is reacted with at least one gaseous reactant to give the end product, wherein reactions (I) and (II), optionally after a start phase, are allowed to proceed simultaneously in the same apparatus, specifically loop reactor, and the loop reactor has a connectable gas-liquid circulation system coupled via an ejector mixing nozzle, in which circulated liquid phase is mixed in the ejector mixing nozzle with newly supplied gaseous reactant of reaction (II) (6) and/or gaseous reactant of reaction (II) aspirated by means of the ejector from the reactor via a connectable condenser (5), and fed to the reactor by a liquid jet ejector (2) for the reaction, the low-boiling by-product(s) of reaction (I) and also any low-boiling solvent being condensed and discharged in the condenser continuously over the duration of the process. In particular, the invention relates to a process for etherifying high-boiling polyether alcohols.

    摘要翻译: 本发明涉及在环流反应器中同时进行两个化学连续反应的方法,特别是反应I)在高沸点液体反应物之间任选催化的平衡反应,其中基本上形成一个高沸点物作为中间体和至少一个低 锅炉作为副产物,反应II)基本上扩散控制的反应,其中液体中间体与至少一种气态反应物反应以产生最终产物,其中反应(I)和(II)任选地在起始之后 相位允许在同一装置中,特别是环管反应器中,并且环路反应器具有通过喷射混合喷嘴连接的可连接气液循环系统,其中循环液相在喷射混合喷嘴中混合, 反应(II)(6)的气态反应物和/或反应(II)的气体反应物通过喷射器通过连接从反应器吸出 c)冷凝器(5),并通过用于反应的液体喷射器(2),反应(I)的低沸点副产物以及任何低沸点溶剂冷凝和排出到反应器中 冷凝器在过程持续时间内持续。 特别地,本发明涉及醚化高沸点聚醚醇的方法。

    Method for producing cold polyurethane foams
    5.
    发明授权
    Method for producing cold polyurethane foams 失效
    生产冷聚氨酯泡沫的方法

    公开(公告)号:US5633292A

    公开(公告)日:1997-05-27

    申请号:US568888

    申请日:1995-12-07

    IPC分类号: C08J9/00 C08G18/24 C08G18/61

    摘要: The invention relates to a method for the production of high resilience polyurethane foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight of between about 4800 and 6500 g/mole and at least 70% primary hydroxyl groups and optionally contain fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers, compounds of the general formula ##STR1## being used as stabilizers, in which R.sup.1 is the same or different in the average molecule and represents a methyl group or a group of the general formula --CH.sub.2 --CH.sub.2 --(CH.sub.2).sub.a --C.sub.6 H.sub.3 (R.sup.2).sub.2 (a=0 or 1; R.sup.2 =--O--CH.sub.3), with the proviso that at least one R.sup.1 group is a group having the formula --CH.sub.2 --CH.sub.2 --(CH.sub.2)a--C.sub.6 H.sub.3 (R.sup.2).sub.2n has an average numerical value of 2 to 11,m has an average numerical value of 1 to 6,with the proviso that the quotient p=(n+m+2)/m is 1.66 to 12.

    摘要翻译: 本发明涉及通过使通常具有约4800至6500g / mol平均分子量和至少70%伯羟基的高反应性多元醇的混合物反应生产高回弹性聚氨酯泡沫的方法,并且任选地含有 填料,多官能异氰酸酯,胺活化剂,交联剂,锡催化剂,发泡剂和稳定剂,用作稳定剂的通式为“IMAGE”的化合物,其中R 1在平均分子中相同或不同, 基团或通式-CH 2 -CH 2 - (CH 2)a -C 6 H 3(R 2)2(a = 0或1; R 2 = -O-CH 3)的基团,条件是至少一个R 1基团是基团 具有式-CH 2 -CH 2 - (CH 2)a -C 6 H 3(R 2)2 n的平均数值为2至11,m的平均数值为1至6,条件是商p =(n + m + 2)/ m为1.66〜12。

    Process for alkoxylation with DMC catalysts in a loop reactor with ejector
    7.
    发明授权
    Process for alkoxylation with DMC catalysts in a loop reactor with ejector 失效
    在具有喷射器的环管反应器中用DMC催化剂进行烷氧基化的方法

    公开(公告)号:US08058388B2

    公开(公告)日:2011-11-15

    申请号:US12277903

    申请日:2008-11-25

    IPC分类号: C08G65/34

    摘要: The invention relates to a process for preparing polyethers of the formula (I) R1—(CHR2CHR3—O)n—H  (I) where n=1 to 12 000, R1=a radical comprising at least one carbon atom and R2 and R3 are each independently H or a hydrocarbon radical, where the units designated with the index n may be the same or different (the R2 and R3 radicals in the different units n may thus be the same or different), by alkoxylating a starter compound which comprises the R1 radical in the presence of a double metal cyanide catalyst (DMC catalyst) in a loop reactor, which is characterized in that the alkoxylation is performed in a loop reactor which has an ejector mixing nozzle, in which all substances involved in the reaction or assistants can be added to the circulated reaction mixture, an alkylene oxide or a plurality of different alkylene oxides being metered into the reaction mixture via the ejector mixing nozzle at the same time (random addition) or at different times (block addition).

    摘要翻译: 本发明涉及一种制备式(I)的聚醚的方法,其中n = 1至12000,R 1 =包含至少一个碳原子的基团,R 2和R 3(R 2) 各自独立地为H或烃基,其中以索引n表示的单元可以相同或不同(不同单元n中的R 2和R 3基团可以相同或不同),通过将起始化合物烷氧化,所述起始化合物包含 在环状反应器中在双金属氰化物催化剂(DMC催化剂)存在下的R 1基团,其特征在于烷氧基化在具有喷射混合喷嘴的环管反应器中进行,其中涉及反应的所有物质或 可以向循环的反应混合物中加入助剂,同时通过喷射混合喷嘴(随机添加)或不同时间(嵌段加成)将烯化氧或多种不同的烯化氧计量加入到反应混合物中。

    Method for producing cold polyurethane foams
    8.
    发明授权
    Method for producing cold polyurethane foams 失效
    生产冷聚氨酯泡沫的方法

    公开(公告)号:US5480916A

    公开(公告)日:1996-01-02

    申请号:US433280

    申请日:1995-04-28

    IPC分类号: C08J9/00 C08K5/5419 C08G18/28

    摘要: High resilience polyurethane foams are produced by reacting a mixture of highly reactive polyols having a weight average molecular weight between about 4800 and 6500 g/mole and containing at least 70% primary hydroxyl groups and optionally fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers. The inventive stabilizers can be used universally in high resilience slabstock foam systems as well as in high resilience molded foam systems and in formulations based on pure TDI, TDI/MDI mixtures as well as on pure MDI in combination with appropriate polyols.

    摘要翻译: 通过使重均分子量在约4800和6500g / mol之间并含有至少70%伯羟基和任选的填料,多官能异氰酸酯,胺活化剂,交联的高反应性多元醇的混合物 助剂,锡催化剂,发泡剂和稳定剂。 本发明的稳定剂可广泛用于高弹性板坯泡沫体系以及高弹性模塑泡沫体系中,以及基于纯TDI,TDI / MDI混合物以及纯MDI与合适多元醇组合的配方中。

    Process for alkoxylation with DMC catalysts in a loop reactor with ejector
    9.
    发明申请
    Process for alkoxylation with DMC catalysts in a loop reactor with ejector 失效
    在具有喷射器的环管反应器中用DMC催化剂进行烷氧基化的方法

    公开(公告)号:US20090292084A1

    公开(公告)日:2009-11-26

    申请号:US12277903

    申请日:2008-11-25

    IPC分类号: C08F2/01

    摘要: The invention relates to a process for preparing polyethers of the formula (I) R1—(CHR2CHR3—O)n—H  (I) where n=1 to 12 000, R1=a radical comprising at least one carbon atom and R2 and R3 are each independently H or a hydrocarbon radical, where the units designated with the index n may be the same or different (the R2 and R3 radicals in the different units n may thus be the same or different), by alkoxylating a starter compound which comprises the R1 radical in the presence of a double metal cyanide catalyst (DMC catalyst) in a loop reactor, which is characterized in that the alkoxylation is performed in a loop reactor which has an ejector mixing nozzle, in which all substances involved in the reaction or assistants can be added to the circulated reaction mixture, an alkylene oxide or a plurality of different alkylene oxides being metered into the reaction mixture via the ejector mixing nozzle at the same time (random addition) or at different times (block addition).

    摘要翻译: 本发明涉及一种制备式(I)R1-(CHR2CHR3-O)nH(I)的聚醚的方法,其中n = 1至12000,R 1 =包含至少一个碳原子的基团,R 2和R 3各自为 独立地是H或烃基,其中以索引n表示的单元可以相同或不同(不同单元n中的R2和R3基团可以相同或不同),通过烷氧基化包括R1的起始化合物 在环管反应器中存在双金属氰化物催化剂(DMC催化剂)的条件下进行自由基,其特征在于烷氧基化在具有喷射混合喷嘴的环管反应器中进行,其中参与反应或助剂的所有物质均可 加入到循环的反应混合物中,通过喷射混合喷嘴同时(随机添加)或不同时间(嵌段加成)将烯化氧或多种不同的烯化氧计量加入到反应混合物中。