Esterification of rosin acid with calcium hydroxybenzyl phosphon

Details Esterification of rosin acid with calcium hydroxybenzyl phosphon Esterification of rosin acid with calcium hydroxybenzyl phosphon

1986-01-27

1987-04-21

Cockeram, Herbert S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

556 19, C09F 100, C09F 500

Patent

active

046595147

ABSTRACT:
An esterfication process particularly for the preparation of polyesters and polymeric esters wherein aliphatic or aromatic carboxylic acids are reacted with appropriate alcohols in the presence of catalytic amounts of calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate], the presence of said phosphonate serving to reduce the time necessary for complete esterification and to provide esters with increased oxidation stability and better color.

REFERENCES:
patent: 2608542 (1952-08-01), Smith et al.
patent: 2628249 (1953-02-01), Bruno
patent: 2656343 (1953-10-01), Ritchie
patent: 3310575 (1967-03-01), Spivack
patent: 3575951 (1971-04-01), Schuller et al.
patent: 4515713 (1985-05-01), Wideman et al.

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