Preparation of plasticizer or polyol esters by the staged additi

Details Preparation of plasticizer or polyol esters by the staged additi Preparation of plasticizer or polyol esters by the staged additi

1994-04-29

1996-07-02

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 98, 560103, 560204, C07C 6708

Patent

active

055324053

ABSTRACT:
A process for the esterification of acids or anhydrides with alcohols or a polyhydroxy compound wherein the lower boiling point reactant is added to the reaction vessel in stages such that it is present in an amount of at least about 5% of the stoichiometric requirements of the total lower boiling point reactant required to react with the limiting reagent, and wherein the concentration of the lower boiling point reactant is monitored so that additional reactant having the lower boiling point can be subsequently added in stages to the reaction mixture in order to maintain a certain predetermined concentration of the lower boiling point reactant.

REFERENCES:
patent: 2411136 (1946-11-01), Luce
patent: 2813891 (1957-11-01), Billing
patent: 3681434 (1972-08-01), Neely
patent: 4077945 (1978-03-01), Heinze et al.
patent: 4241216 (1980-12-01), Bergman et al.
patent: 4859792 (1989-08-01), Powanda et al.
patent: 4868329 (1989-09-01), Powanda et al.
patent: 5324853 (1994-06-01), Jones et al.

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