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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8471031 B1

PDFFull Text
Date of Patent:
Jun. 25, 2013

Filed:

Jun. 25, 2007

Process for the preparation of sterically hindered nitroxyl ethers

Applicants:

Kai-uwe Schöning, Oberwil, CH;

Walter Fischer, Reinach, CH;

Abdel-ilah Basbas, Basel, CH;

Alexander Dichtl, Lörrach, DE;

Inventors:

Kai-Uwe Schöning, Oberwil, CH;

Walter Fischer, Reinach, CH;

Abdel-Ilah Basbas, Basel, CH;

Alexander Dichtl, Lörrach, DE;

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Tyler A. Stevenson

Primary Examiner:

Venkataraman Balasubramanian

Int. Cl.
CPC ...
C07D 211/94 (2006.01); C07D 401/12 (2006.01); C07D 401/14 (2006.01); C07D 403/12 (2006.01); C07D 403/14 (2006.01); C07B 43/00 (2006.01); C07B 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a novel process for the preparation of a sterically hindered nitroxyl ether from the corresponding sterically hindered nitroxyl radical by reacting it with a carbonyl compound and a hydroperoxide. The compounds prepared by this process are effective stabilizers for polymers against harmful effects of light, oxygen and/or heat, as flame-retardants for polymers and as polymerization regulators.

Find Patent Forward Citations

Schöning, Kai-Uwe. (2013). Process for the preparation of sterically hindered nitroxyl ethers (U.S. Patent No. 8471031). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8471031

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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