Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1992-10-14
1993-08-24
Prescott, Arthur C.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
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:
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patent: 4323513 (1982-04-01), Dombek
patent: 4476332 (1984-10-01), Nalepa
patent: 4544453 (1985-10-01), Gupta
patent: 4699998 (1987-10-01), Green
Chu Neng-Hui
Chu Tzong-Jeng
Lee Peng-Fei
Prescott Arthur C.
Shiny Chemical Industrial Co., Ltd.
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