Process for lightening the color of polyol esters

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United States of America Patent

PATENT NO 8524938
APP PUB NO 20110087046A1
SERIAL NO

12924830

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Abstract

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The present invention relates to a process for lightening the color of polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, wherein the reaction product is worked up without using adsorbents and comprises a treatment with ozone or ozone-containing gases and an immediately subsequent steam treatment with subsequent drying.

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Patent Owner(s)

  • OXEA GMBH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frey, Guido D Riedstadt, DE 26 55
Kreickmann, Thorsten Oberhausen, DE 11 29
Strutz, Heinz Moers, DE 71 215

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