Invention Grant
- Patent Title: Process for lightening the color of polyol esters
- Patent Title (中): 减轻多元醇酯颜色的方法
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Application No.: US12924830Application Date: 2010-10-06
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Publication No.: US08524938B2Publication Date: 2013-09-03
- Inventor: Guido D. Frey , Thorsten Kreickmann , Heinz Strutz
- Applicant: Guido D. Frey , Thorsten Kreickmann , Heinz Strutz
- Applicant Address: DE Oberhausen
- Assignee: Oxea GmbH
- Current Assignee: Oxea GmbH
- Current Assignee Address: DE Oberhausen
- Agent Michael W. Ferrell
- Priority: DE102009048774 20091008
- Main IPC: C07C69/003
- IPC: C07C69/003
Abstract:
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.
Public/Granted literature
- US20110087046A1 Process for lightening the color of polyol esters Public/Granted day:2011-04-14
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