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    • 24. 发明申请
    • Semi-Continuous Method For Producing Copolymers
    • 用于生产共聚物的半连续方法
    • US20120035300A1
    • 2012-02-09
    • US13133026
    • 2009-11-25
    • Reinhard DorfnerKlaus LorenzPetra WagnerChristian Scholz
    • Reinhard DorfnerKlaus LorenzPetra WagnerChristian Scholz
    • C04B16/04C08F216/14C08F2/10
    • C08F290/00C08F265/00C08F267/00C08F283/06C08F290/062C08F290/142C08L51/003C08L2666/02
    • The present invention relates to a process for the preparation of a copolymer in semicontinuous operation in a polymerization apparatus, comprising a polymerization reactor connected to a metering device, in each case acid monomer being initially taken in the metering device and polyether macromonomer and water in the polymerization reactor, acid monomer being metered from the metering device via an acid monomer metering line into the polymerization reactor, free radical polymerization initiator being passed into the polymerization reactor before and/or during the metering of the acid monomer into the polymerization reactor so that an aqueous medium in which acid monomer and polyether macromonomer are reacted with formation of the copolymer by free radical polymerization forms in the polymerization reactor, a portion of the copolymer-containing aqueous medium being passed continuously during the free radical polymerization from the polymerization reactor via a reaction mixture line which is connected via a mixing device to the acid monomer metering line, the discharged copolymer-containing aqueous medium being mixed with the acid monomer in the mixing device during the metering of the acid monomer and being recycled to the polymerization reactor after the mixing via the acid monomer metering line.
    • 本发明涉及一种在聚合设备中半连续操作中制备共聚物的方法,包括连接到计量装置的聚合反应器,在各种情况下,酸性单体最初被摄入计量装置中,聚醚大分子单体和水在 聚合反应器,酸性单体通过酸单体计量管线从计量装置计量到聚合反应器中,自由基聚合引发剂在酸单体计量之前和/或期间进入聚合反应器中,使得自由基聚合引发剂 其中酸性单体和聚醚大分子单体与在聚合反应器中通过自由基聚合形式形成共聚物的水性介质反应,一部分含共聚物的水性介质在自由基聚合过程中通过反应从聚合反应器中连续通过 混合线 ch通过混合装置连接到酸性单体计量管线,在计量酸性单体期间,将排出的含共聚物的水性介质与酸性单体混合在混合装置中,并在经过混合之后再循环到聚合反应器中 酸性单体计量线。
    • 25. 发明申请
    • Semi Continuous Operational Method For Producing Copolymers
    • 半连续生产共聚物的连续操作方法
    • US20110009575A1
    • 2011-01-13
    • US12920143
    • 2009-02-10
    • Gerhard AlbrechtKlaus LorenzChristian ScholzPetra Wagner
    • Gerhard AlbrechtKlaus LorenzChristian ScholzPetra Wagner
    • C08F2/04
    • C08F220/04C08F220/26
    • The invention relates to a process for the preparation of a copolymer in a semicontinuous mode of operation in a polymerization apparatus containing a polymerization reactor connected to a metering device, in each case acid monomer being initially introduced into the metering device and polyether macromonomer and water into the polymerization reactor, acid monomer being metered from the metering device into the polymerization reactor, free radical polymerization initiator being passed into the polymerization reactor before and/or during the metering of the acid monomer into the polymerization reactor, so that an aqueous medium forms in the polymerization reactor, in which aqueous medium acid monomer and polyether macromonomer are reacted by free radical polymerization with formation of the copolymer, at least 70 mol % of the polyether macromonomer initially introduced into the polymerization reactor being converted by the free radical polymerization, the conversion of the acid monomer giving rise in the copolymer to an acid structural until which reduces the pH of the aqueous medium to a lesser extent than the acid monomer as such, the metering of the acid monomer into the polymerization reactor being effected in such a way that first a polymerization pH is established in the aqueous medium and then, until the conversion of 70 mol % of the polyether macromonomer initially introduced into the polymerization reactor, acid monomer is passed into the polymerization reactor in an amount per unit time such that the pH in the aqueous medium deviates by not more than ±0.3 from the initially established polymerization pH.
    • 本发明涉及在含有连接到计量装置的聚合反应器的聚合装置中制备半连续工作模式的共聚物的方法,每种情况下,酸性单体最初被引入计量装置和聚醚大分子单体和水中 聚合反应器,酸性单体从计量装置计量到聚合反应器中,自由基聚合引发剂在酸单体计量之前和/或期间进入聚合反应器中,使得水性介质形成于 其中水性介质酸性单体和聚醚大分子单体通过自由基聚合反应形成共聚物的聚合反应器,最初引入聚合反应器的至少70mol%的聚醚大分子单体通过自由基聚合转化,转化率 的酸单体 在共聚物中产生酸结构,直到将酸性单体的酸度降低到酸性单体的程度以下为止,将酸单体计量到聚合反应器中的方式是首先使聚合pH 在水介质中建立,然后直到最初引入聚合反应器中的70mol%的聚醚大分子单体的转化率为单位时间内将酸性单体以每单位时间的量进入聚合反应器,使得水介质中的pH偏离 从最初建立的聚合pH不超过±0.3。
    • 26. 发明授权
    • Process for producing polyester polyols having secondary OH end groups
    • 制备具有次级OH端基的聚酯多元醇的方法
    • US09193822B2
    • 2015-11-24
    • US13318157
    • 2010-05-04
    • Hartmut NefzgerErika BauerJörg HofmannKlaus LorenzBert Klesczewski
    • Hartmut NefzgerErika BauerJörg HofmannKlaus LorenzBert Klesczewski
    • C07C69/675C08G63/91C08G18/42C08G63/87
    • C08G63/914C08G18/4261C08G63/87
    • The invention relates to a process for producing polyester polyols with secondary hydroxyl end groups, including the step of the reaction of a polyester including carboxyl end groups with an epoxide of the general formula (1): wherein R1 stands for an alkyl residue or an aryl residue and the reaction is carried out in the presence of a catalyst that includes at least one nitrogen atom per molecule. The process is distinguished in that the polyester including carboxyl end groups exhibits an acid value from ≧25 mg KOH/g to ≦400 mg KOH/g and a hydroxyl value from ≦5 mg KOH/g and in that the polyester including carboxyl end groups is produced by ≧1.03 mol to ≦1.90 mol carboxyl groups or carboxyl-group equivalents of an acid component being employed per mol hydroxyl groups of an alcohol. The polyester polyols obtained, including secondary hydroxyl end groups, can be used for the purpose of producing polyurethane polymers.
    • 本发明涉及一种生产具有仲羟基端基的聚酯多元醇的方法,包括包括羧基端基的聚酯与通式(1)的环氧化物反应的步骤:其中R1代表烷基或芳基 残基,反应在每分子包含至少一个氮原子的催化剂存在下进行。 该方法的区别在于包括羧基端基的聚酯显示出≥25mgKOH / g至≥1000的KOH值,400mg KOH / g的酸值和来自< NEE的5K KOH / g的羟值,并且包括羧基的聚酯 端基是由醇的每摩尔羟基使用的≥1.03摩尔至1升; 1.90摩尔羧基或酸组分的羧基当量。 得到的聚酯多元醇(包括仲羟基端基)可用于制备聚氨酯聚合物。