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    • 3. 发明申请
    • POLYESTER POLYOLS MADE OF ISOPHTHALIC ACID AND/OR TEREPHTHALIC ACID AND OLIGOALKYL OXIDES
    • 异辛酸和/或正十二酸和低聚乙烯氧化物的聚酯多元醇
    • US20120123009A1
    • 2012-05-17
    • US13322989
    • 2010-05-18
    • Hartmut NefzgerErika BauerJohannes Van De BraakJürgen SchlossmacherSilvia Kasperek
    • Hartmut NefzgerErika BauerJohannes Van De BraakJürgen SchlossmacherSilvia Kasperek
    • C08L75/06C08J9/00C07C69/82
    • C08G18/4252C08G18/4211C08G63/672C08G63/85C08G2101/0025C08G2101/005C08G2105/02
    • The present invention relates to a method for producing a polyester polyol having a concentration of ether groups in the range from 9.0 mol/kg of polyester polyol to 22 mol/kg polyester polyol, characterized in that (i) in a first step (A) isophthalic acid, optionally in the form of a C1-C4 alkyl ester, and/or terephthalic acid, optionally in the form of a C1-C4 alkyl ester, is reacted with (B) oligoethylene glycol of the formula H—(OCH2CH2)n—OH having a numerical average number of oxyethylene groups n in the range from 3.0 to 9.0, in the presence of at least one catalyst selected from the group made up of tin(II) salts, bismuth(II) salts, and titanium tetraalkoxylates, at a temperature in the range from 160° C. to 240° C., and at a pressure in the range from 1 to 1013 mbar, for a duration in the range from 7 to 100 hours, and (ii) in a second step the reaction mixture resulting from step (i) is reacted with (C) phthalic acid and/or phthalic acid hydride, the polyester polyols obtained according to said method, and to the use thereof for producing PUR/PIR hard foam materials
    • 本发明涉及一种聚酯多元醇的制造方法,所述聚酯多元醇的浓度为9.0摩尔/千克聚酯多元醇至22摩尔/千克聚酯多元醇,其特征在于,(i)在第一步骤(A) 任选呈C1-C4烷基酯形式的间苯二甲酸和/或对苯二甲酸,任选呈C1-C4烷基酯形式,与式(B)的低聚乙二醇(H 2 OCH 2 CH 2)n -OH在数均平均数为3.0至9.0的范围内,在至少一种选自锡(II)盐,铋(II)盐和四烷氧基钛酸盐的催化剂存在下, 在160℃至240℃的温度范围内和在1至1013毫巴的压力下持续7至100小时的持续时间,和(ii)在第二步骤中 由步骤(i)得到的反应混合物与(C)邻苯二甲酸和/或邻苯二甲酸氢化物反应,聚酯多元醇 根据所述方法染色,以及其用于生产PUR / PIR硬泡沫材料的用途