Stabilization of modified rosin

Details Stabilization of modified rosin Stabilization of modified rosin

1987-12-15

1991-06-11

Kight, III, John

Chemistry: natural resins or derivatives; peptides or proteins;

Natural resins or derivatives

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

530219, 530220, C08L 9304

Patent

active

050233190

ABSTRACT:
This invention relates to a method for treating polymerized rosin to decrease its tendency to oxidize comprising heating the polymerized rosin to an elevated temperature in the presence of an effective amount of one or more disproportionating agents. This invention also relates to the novel products of such disproportionation treatments.

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patent: 4339377 (1982-07-01), Hollis
patent: 4481145 (1984-11-01), Timms
Sinclair and Berry, "Influence of Reaction Conditions on the Dimerization of Abietic Acid and Rosin", I&EC Product Research and Development, vol. 9, pp. 60-65 (Mar. 1970).
Kirk Othmer's Encyclopedia of Chemical Technology, (2nd Rev. Ed., 1968), vol. 17, pp. 494-498.
Practical Organic Chemistry, ed., A. I. Vogel, 3rd Ed., (John Wiley & Sons, Inc. 1956).

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