Method for rosin esterification

Details Method for rosin esterification Method for rosin esterification

1985-05-09

1987-03-17

Cockeram, Herbert S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260106, C09F 104, C09F 700

Patent

active

046506071

ABSTRACT:
The catalytic combination of phosphinic acid (also called hypophosphorous acid) and a phenol sulfide compound is disclosed to accelerate the reaction rate of esterification of rosin with a polyhydric alcohol, as well as provide product color improvements. According to the process of the invention, a rosin is reacted with up to a 50% equivalent excess of the polyhydric alcohol in the presence of phosphinic acid and a phenol sulfide compound at a temperature of from about 180.degree. C. to about 300.degree. C.

REFERENCES:
patent: 3377334 (1968-04-01), McBride et al.
patent: 3417071 (1968-12-01), Wheelus
patent: 3423389 (1969-01-01), Wheelus
patent: 4548746 (1985-10-01), Duncan et al.

Affiliated with

Also associated with

Rating

Method for rosin esterification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for rosin esterification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for rosin esterification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1787306