Method of preparing rosin esters of improved thermal stability w

Details Method of preparing rosin esters of improved thermal stability w Method of preparing rosin esters of improved thermal stability w

1986-11-14

1988-11-29

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260103, C09F 100

Patent

active

047880090

ABSTRACT:
Alkali metal and alkaline earth metal salts of hypophosphorous and phosphorous acid are used to catalyze the esterification of rosin with a polyol. The method is an improvement in that reaction time is shortened and the ester product exhibits improved color and thermal stability.

REFERENCES:
patent: 4659514 (1987-04-01), Beuke
Organophosphorus Monomers and Polymers; Gefter, 1962, p. X.

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