Propylene glycol monomethyl ether propionate compound and the pr

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters

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C07C 6710

Patent

active

052391116

ABSTRACT:
A propylene glycol monomethyl ether propionate compound is obtained by the esterification of propylene glycol monomethyl ether with propionic acid at an elevated temperature above 80 .degree.C. in the presence of acidic catalyst and azeotropic agent. This compound is rectified for removing acid residue and moisture in order to yield the desirable product having high purity.

REFERENCES:
patent: 4298758 (1981-11-01), Cook et al.
patent: 4323513 (1982-04-01), Dombek
patent: 4476332 (1984-10-01), Nalepa
patent: 4544453 (1985-10-01), Gupta
patent: 4699998 (1987-10-01), Green

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