Method of improving the color of tall oil rosin esters by recrys

Details Method of improving the color of tall oil rosin esters by recrys Method of improving the color of tall oil rosin esters by recrys

1989-07-10

1990-10-09

Anderson, Harold D.

Chemistry: natural resins or derivatives; peptides or proteins;

Natural resins or derivatives

Rosin or derivative used as starting material in process, or...

530215, 530228, 530232, C09F 104

Patent

active

049621866

ABSTRACT:
A method of improving the color of tall oil rosin esters comprising the sequential steps of (a) recrystallizing a tall oil rosin from a solvent, (b) purifying the crystalline portion by distillation, and (c) esterifying the resultant rosin with a polyol.

REFERENCES:
patent: 4248770 (1981-02-01), Matsuo et al.

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