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OLIGOCARBONATE POLYOLS OBTAINED FROM DIANHYDROHEXITOL DIALKYLCARBONATE OR A DIMER OF DIANHYDROHEXITOL CARBONATE, METHOD FOR THE PRODUCTION THEREOF AND USES THEREOF
OLIGOCARBONATE POLYOLS OBTAINED FROM DIANHYDROHEXITOL DIALKYLCARBONATE OR A DIMER OF DIANHYDROHEXITOL CARBONATE, METHOD FOR THE PRODUCTION THEREOF AND USES THEREOF
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机译:二羟基己二酸二乙酯或碳酸二羟基己酯的二聚体得到的低碳多羟基化合物,其制备方法和用途
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摘要
The invention relates to a method for producing an oligocarbonate polyol devoid of aromatic groups and phenolic functions, comprising a step of polycondensation by transesterification of monomers (A1) and/or dimers (A2) and of diol monomers (B1) and/or of triol monomers (B2), in a particular molar ratio, in order to obtain an oligocarbonate polyol having a molar mass of less than 5000 g/mol and at least two hydroxyl-type chain ends, the monomer (A1) corresponding to the following formula: (A1) and the dimer (A2) corresponding to the following formula: (A2) as well as the oligocarbonate polyol that can be obtained by this method and the polycarbonate that can be obtained by reacting this oligocarbonate with a polyisocyanate.
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机译:本发明涉及一种不具有芳族基团和酚官能团的低聚碳酸酯多元醇的制备方法,该方法包括通过单体(A1)和/或二聚体(A2)和二醇单体(B1)和/或三醇的酯交换反应进行缩聚的步骤。为了获得摩尔质量小于5000 g / mol且具有至少两个羟基型链端的低聚碳酸酯多元醇,以特定的摩尔比的单体(B2),单体(A1)对应于下式: (A1)和与下式对应的二聚体(A2):(A2),以及通过该方法可获得的低聚碳酸酯多元醇,以及通过使该低聚碳酸酯与多异氰酸酯反应而获得的聚碳酸酯。
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