Propylene glycol monomethyl ether propionate compounds and the p

Details Propylene glycol monomethyl ether propionate compounds and the p Propylene glycol monomethyl ether propionate compounds and the p

1993-08-02

1994-06-14

Prescott, Arthur C.

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

Organic compounds

Carboxylic acid esters

C07C 6710

Patent

active

053211529

ABSTRACT:
Propylene glycol monomethyl ether propionate compounds are 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. The compounds are 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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