Method for the preparation of light-colored rosin esters

Details Method for the preparation of light-colored rosin esters Method for the preparation of light-colored rosin esters

1990-05-30

1992-11-10

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...

530210, 530213, 530215, 530216, 530218, 530219, C09F 100, C08L 9304

Patent

active

051624966

ABSTRACT:
The catalytic combination of a phosphite ester and a phenol sulfide is disclosed. The catalyst combination accelerates and mediates the esterification reaction of rosin with a polyhydric alcohol, resulting in esterified rosins having numerous advantageous characteristics and particular utility as tackifiers in hot melt adhesives.

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

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