Invention Grant
- Patent Title: Process for the preparation of sterically hindered nitroxyl ethers
- Patent Title (中): 制备空间位阻硝酰基醚的方法
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Application No.: US12308595Application Date: 2007-06-25
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Publication No.: US08481726B2Publication Date: 2013-07-09
- Inventor: Abdel-Ilah Basbas , Davide Alvisi , Robert Cordova , Michael Peter Difazio , Walter Fischer , Joseph A. Kotrola , Tiziano Nocentini , James Robbins , Kai-Uwe Schöning
- Applicant: Abdel-Ilah Basbas , Davide Alvisi , Robert Cordova , Michael Peter Difazio , Walter Fischer , Joseph A. Kotrola , Tiziano Nocentini , James Robbins , Kai-Uwe Schöning
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agent Tyler A. Stevenson
- Priority: EP06116619 20060705; EP07106899 20070425
- International Application: PCT/EP2007/056301 WO 20070625
- International Announcement: WO2008/003605 WO 20080110
- Main IPC: C07D211/94
- IPC: C07D211/94 ; C07D401/12 ; C07D401/14 ; C07D403/12 ; C07D403/14 ; C07B43/00
Abstract:
The present invention relates to a novel process for the preparation of specific sterically hindered nitroxyl ethers from their corresponding sterically hindered nitroxyl radicals by reacting it with an aldehyde and a hydroperoxide. This nitroxyl ether formation may be carried out from different starting nitroxyl radicals, which are subsequently further reacted to the desired compounds. The compounds prepared by this process are effective as stabilizers for polymers against harmful effects of light, oxygen and/or heat and as flame-retardants for polymers.
Public/Granted literature
- US20110160453A1 Process for the preparation of sterically hindered nitroxyl ethers Public/Granted day:2011-06-30
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