Production of polyol polyesters having reduced color content

Details Production of polyol polyesters having reduced color content Production of polyol polyesters having reduced color content

1989-06-14

1990-06-05

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536124, 260428, 260420, 2604106, C07H 1302, C07H 100, C11C 300, C09F 300

Patent

active

049315528

ABSTRACT:
Polyol polyesters having reduced color content are prepared by base-catalyzed transesterification of lower (i.e., C.sub.1 -C.sub.3) alkyl fatty esters having a carbonyl content of less than about 200 ppm with polyols. The esters can be prepared by a pretreatment comprising distilling the said alkyl fatty esters (in a liquid state), preferably with a base, and discarding both the top cut in an amount that is about 5% or less and at least about 2% of the still bottoms.

REFERENCES:
patent: 3963699 (1976-06-01), Rizzi et al.
patent: 3984444 (1976-10-01), Ritz et al.
patent: 4517360 (1985-05-01), Volpenhein
patent: 4552702 (1985-11-01), Schmid et al.

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