Disproportionation of rosin in the presence of dithiin derivativ

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

1980-01-22

1981-05-05

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 97, 260106, 260108, 260453RY, 549 20, 549 21, 549 22, C09F 104, C07C 3908

Patent

active

042658071

ABSTRACT:
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.

REFERENCES:
patent: 3377333 (1968-04-01), Ciesielski et al.
patent: 3377334 (1968-04-01), McBride et al.
patent: 3417071 (1968-12-01), Wheelers
patent: 3423389 (1969-01-01), Wheelers
patent: 3649612 (1972-03-01), Scharrer
patent: 3872073 (1975-03-01), Thorpe et al.
patent: 3929703 (1975-12-01), Weymann et al.
patent: 4126604 (1978-11-01), Alford et al.

Affiliated with

Also associated with

Rating

Disproportionation of rosin in the presence of dithiin derivativ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disproportionation of rosin in the presence of dithiin derivativ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disproportionation of rosin in the presence of dithiin derivativ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-295617