Lower alkyl ester recycling in polyol fatty acid and polyester synthesis

Title:

Lower alkyl ester recycling in polyol fatty acid and polyester synthesis

Document Type and Number:

WIPO Patent Application WO1998034944

Kind Code:

A3

Abstract:

Process for synthesizing polyol fatty acid polyesters which includes the steps of reacting an excess of lower alkyl ester with polyol to esterify hydroxyl groups thereof and form polyol fatty acid polyester, separating at least a portion of the unreacted lower alkyl ester from the polyol fatty acid polyester, and recycling the separated unreacted lower alkyl ester for further reaction with polyol or partially esterified polyol. The recycled lower alkyl ester is substantially free of lower alkyl ester degradation reaction products, such as carbonyls and free fatty acids.

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Inventors:

KENNEALLY COREY JAMES (US)
TROUT JAMES EARL (US)
SARAMA ROBERT JAMES (US)

Application Number:

PCT/US1998/002616

Publication Date:

September 17, 1998

Filing Date:

February 06, 1998

Export Citation:

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Assignee:

PROCTER & GAMBLE (US)

International Classes:

C07H1/00; C07H3/06; C07H13/06; (IPC1-7): C07H13/06; C07H3/06

Domestic Patent References:

WO1996040701A1	1996-12-19
WO1996040415A1	1996-12-19
WO1993011141A1	1993-06-10

Foreign References:

EP0320043A2	1989-06-14
US4334061A	1982-06-08

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