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    • 10. 发明授权
    • Phthalic acid alkyl ester mixtures with controlled viscosity
    • 邻苯二甲酸烷基酯混合物具有可控的粘度
    • US07323586B2
    • 2008-01-29
    • US10487061
    • 2002-09-20
    • Klaus-Diether WieseMichael GrassWilfried Bueschken
    • Klaus-Diether WieseMichael GrassWilfried Bueschken
    • C07C67/08C07C67/10C07C69/76C09K3/00
    • C07C69/80C08K5/12C10M105/36C10M129/72C10M2207/285C10M2207/2855C10N2240/08C10N2270/00
    • Mixtures of isomeric dialkyl phthalates that have a desired viscosity are prepared by esterifying phthalic acid or phthalic anhydride with a mixture of isomeric alkyl alcohols having a certain carbon number of carbon atoms, where the molar fraction of each alkyl alcohol isomer of the isomeric alcohol mixture is determined, and where the viscosity parameter of each alkyl alcohol isomer of the alcohol mixture, which, upon reacting with phthalic acid or phthalic anhydride, results in a mixed isomer dialkyl phalate ester product having a specific desired viscosity, is determined in accordance with formula (I): ln(η)=Σχi*ln(ηi)   (I) where η=the calculated viscosity of a dialkyl phthalate mixture, χi=the molar fraction of an isomerically pure alcohol (i), and ηi=the viscosity parameter of isomerically pure alcohol (i).
    • 具有所需粘度的异构二烷基邻苯二甲酸酯的混合物通过用具有一定碳原子数的异构烷基醇的混合物酯化邻苯二甲酸或邻苯二甲酸酐来制备,其中异构醇混合物的各烷基醇异构体的摩尔分数为 并且其中与邻苯二甲酸或邻苯二甲酸酐反应产生具有特定所需粘度的混合异构体癸酸二烷基酯产物的醇混合物的每种烷基醇异构体的粘度参数根据式( I):<?in-line-formula description =“In-line Formulas”end =“lead”?> ln(eta)= Sigmachi >)(I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中eta =邻苯二甲酸二烷基酯混合物的计算粘度, 异构纯的醇(i)的摩尔分数,和异构纯的醇钠的粘度参数 (i)。