Disproportionation of rosin in the presence of dithiin...

Details Disproportionation of rosin in the presence of dithiin... Disproportionation of rosin in the presence of dithiin...

C - Chemistry, Metallurgy

09

F

260/122

C09F 1/04 (2006.01)

Patent

CA 1134350

Breslow Case 81 DISPROPORTIONATION OF ROSIN IN THE PRESENCE OF DITHIIN DERIVATIVES Abstract of the Disclosure 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°C. to about 300°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°C. to about 300°C. for about 3 to 8 hours.

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