申请人:Hercules Incorporated
公开号:US04265807A1
公开(公告)日:1981-05-05
Disclosed is a method of disproportionating rosin comprising heating said rosin in the presence of a dithiin derivative such, for example, as 2,5-diphenyl dithiin. The method can be carried out at about 150.degree. C. to about 300.degree. C. for about 1 hour to about 10 hours with the longer reaction time corresponding to the lower temperatures. Preferably, the process is run at about 260.degree. C. to about 300.degree. C. for about 3 to 8 hours.
揭示了一种松香不均化的方法,包括在存在二硫代烯衍生物的情况下加热所述松香,例如2,5-二苯基二硫代烯。该方法可在大约150°C至大约300°C的温度下进行,反应时间约为1小时至10小时,较长的反应时间对应较低的温度。最好在大约260°C至大约300°C的温度下进行约3至8小时的过程。