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    • 54. 发明授权
    • Crystallizing polyether polyols, a method for producing them and use of the same
    • 结晶聚醚多元醇,其制备方法和用途
    • US06569981B1
    • 2003-05-27
    • US10030489
    • 2001-10-25
    • Walter SchäferJörg HofmannPramod GuptaPieter Ooms
    • Walter SchäferJörg HofmannPramod GuptaPieter Ooms
    • C08G1848
    • C08G65/269C08G18/48C08G2101/00C08G2250/00
    • This invention relates to crystallizing polyether polyols which can be produced firstly by the reaction of propylene oxide and polyhydroxy compounds in the presence of an alkoxy compound which contains zinc and/or aluminium atoms to form a crystallizing polyether polyol with an average molecular weight Mn from 500 to 5000, followed by the further reaction of the crystallizing polyether polyol which is thus obtained with 10 to 90% by weight, with respect to the amount of crystallizing polyol, of an epoxide in the presence of a catalyst which does not polymerize propylene oxide stereospecifically, to form a crystallizing polyether polyol with an average molecular weight Mn from 1000 to 20,000. The invention further relates to a method for the production thereof and to the use thereof for the production of polyurethane materials, particularly polyurethane foams, polyurethane elastomers and polyurethane coatings.
    • 本发明涉及结晶聚醚多元醇,其可首先通过环氧丙烷和多羟基化合物在含有锌和/或铝原子的烷氧基化合物的存在下反应生成平均分子量Mn为500的结晶聚醚多元醇 至5000,然后在不使立构特异性环氧丙烷聚合的催化剂存在下,将由此得到的结晶性聚醚多元醇进一步反应,其结晶多元醇相对于结晶多元醇的量为10〜90重量% 形成平均分子量Mn为1000〜20,000的结晶性聚醚多元醇。 本发明还涉及其生产方法及其用于生产聚氨酯材料,特别是聚氨酯泡沫,聚氨酯弹性体和聚氨酯涂料的用途。
    • 56. 发明授权
    • Method for producing long chain polyether polyols without reprocessing
    • 不再加工生产长链聚醚多元醇的方法
    • US06482993B1
    • 2002-11-19
    • US09673583
    • 2000-10-18
    • Jörg HofmannPramod Gupta
    • Jörg HofmannPramod Gupta
    • C07C4311
    • B01J31/0227B01J2231/48C08G65/2642C08G65/266
    • This invention relates to a process for the production of long-chain polyether polyols without working up, in which oligomeric, alkoxylated starter compounds having molecular weights of 200 to 1000 are first obtained by catalysis with perfluoroalkylsulfonates of the metals of group III A of the periodic system of elements (in accordance with the IUPAC convention of 1970) from low molecular weight starters by reaction with alkylene oxides at reaction temperatures of 80 to 200° C. and catalyst concentrations of 5 to 200 ppm, which oligomeric, alkoxylated starter compounds are then converted without working up and removal of the catalyst by means of highly active DMC catalysts at a catalyst concentration of 30 ppm or below, relative to the quantity of polyether polyol to be produced, by reaction with alkylene oxides into higher molecular weight, long-chain polyether polyols.
    • 本发明涉及一种不加工的长链聚醚多元醇的制备方法,其中分子量为200〜1000的低聚烷氧基化起始化合物首先通过周期性的IIIA族金属的全氟烷基磺酸盐的催化而得到 在低分子量起始化合物的反应温度为80〜200℃,催化剂浓度为5〜200ppm的条件下,通过与环氧烷烃反应,从低分子量起始剂中分离出元素系统(按照IUPAC惯例) 通过高活性DMC催化剂处理和除去催化剂,催化剂浓度为30ppm或更低,相对于待生产的聚醚多元醇的量,通过与烯化氧反应成较高分子量的长链 聚醚多元醇。
    • 57. 发明授权
    • Method for producing polyether polyols
    • 聚醚多元醇的制备方法
    • US09120894B2
    • 2015-09-01
    • US14131977
    • 2012-07-17
    • Thomas Ernst MüllerChristoph GürtlerMatthias WohakJörg HofmannMuhammad Afzal SubhaniMaurice CosemansWalter Leitner
    • Thomas Ernst MüllerChristoph GürtlerMatthias WohakJörg HofmannMuhammad Afzal SubhaniMaurice CosemansWalter Leitner
    • C08G85/00C08G65/00C08G65/26C08G64/34
    • C08G65/2663C08G64/34C08G65/2603
    • The present invention relates to a process for the preparation of polyether carbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, wherein (α) the H-functional starter substance or a mixture of at least two H-functional starter substances is initially introduced into the reaction vessel, (β) for the activation, a part amount (based on the total amount of the amount of alkylene oxides employed in steps (β) and (γ)) of one or more alkylene oxides is added to the mixture resulting from step (α), it also being possible for step (β) to be carried out several times for the activation, (γ) one or more alkylene oxides and carbon dioxide are metered continuously into the mixture resulting from step (β) (“copolymerization”), the alkylene oxides employed for the copolymerization being identical to or different from the alkylene oxides employed in step (β), characterized in that in step (γ) the carbon dioxide is passed into the mixture by (i) gassing the reaction mixture in the reactor from the bottom, (ii) using a hollow shaft stirrer, (iii) a combination of the metering operations according to (i) and (ii), and/or (iv) gassing over the surface of the liquid by using stirrer units configured in several stages.
    • 本发明涉及在双金属氰化物催化剂存在下由一种或多种H官能起始化合物,一种或多种环氧烷和二氧化碳制备聚醚碳酸酯多元醇的方法,其中(α)H官能团 起始物质或至少两种H功能性起始物质的混合物最初被引入反应容器((bgr))中用于活化,部分量(基于步骤(bgr)中使用的环氧烷烃的总量 (γ))和(γ))加入到由步骤(α)得到的混合物中,对于活化,(γ)一个或多个步骤(&bgr)可以进行几次, 更多的环氧烷和二氧化碳被连续地计量到由步骤((bgr))(“共聚”)得到的混合物中,用于共聚的烯化氧与步骤(bgr)中使用的环氧烷烃相同或不同, 其特征在于在步骤(γ)中,二氧化碳通过以下步骤进入混合物:(i)从底部将反应混合物放入反应器中,(ii)使用中空轴搅拌器,(iii)根据 至(i)和(ii),和/或(iv)通过使用在几个阶段中配置的搅拌器单元在液体的表面上放气。