Patent · US Active

Method for producing polyol esters

US9388115B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

OXEA GMBH · DE

Inventors

Guido D. Frey · Riedstadt, DE
Tonia Weber · Darmstadt, DE
Jörg Arnold · Markdorf, DE
Thorsten Kreickmann · Oberhausen, DE
Heinz Strutz · Usingen, DE

Key dates

Filing date	Jan 28, 2016
Grant date	Jul 12, 2016
Priority date	—
Expiry date	Jan 28, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, is characterized in that a mixture of the starting compounds is allowed to react in the presence of a Lewis acid containing at least one element of groups 4 to 14 of the periodic table of the elements as a catalyst and in the presence of an adsorbent with removal of the water formed, and then the crude ester obtained is aftertreated by adding a further adsorbent which is an acidic activated carbon having a pH of 1 to 6.5.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.