申请人:Gelbin Michael E.
公开号:US20080207804A1
公开(公告)日:2008-08-28
Disclosed herein is a process for the preparation of a mixture of styrenated p-cresol species that is liquid at room temperature and has a viscosity of less than 40,000 cps at 25° C., wherein said process affords 2,6-distyrenated p-cresol assaying at 70% minimum by GC area percent, comprising reacting styrene with p-cresol at a molar ratio of 1.85 to 2.1:1, respectively, in the presence of an acid catalyst at elevated temperature, wherein said mixture comprises monostyrenated-p-cresol, distyrenated-p-cresol, and tristyrenated-p-cresol and exhibits an acid number of less than 0.1 mg KOH/gram.
本文公开了一种制备液态且在室温下粘度小于40,000 cps的苯乙烯化p-甲基苯酚混合物的方法,其中该方法以GC面积百分比为最小值,提供了至少70%的2,6-二苯乙烯化p-甲基苯酚,包括在酸催化剂存在下,在升高的温度下将苯乙烯与p-甲基苯酚按摩尔比1.85至2.1:1反应,其中该混合物包括单苯乙烯化-p-甲基苯酚,二苯乙烯化-p-甲基苯酚和三苯乙烯化-p-甲基苯酚,并且具有小于0.1 mg KOH/克的酸值。