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.:
Date of Patent:
Jun. 24, 2008
Filed:
Jul. 12, 2004
Applicants:
James P. Galbo, Wingdale, NY (US);
Robert E. Detlefsen, Putnam Valley, NY (US);
Inventors:
James P. Galbo, Wingdale, NY (US);
Robert E. Detlefsen, Putnam Valley, NY (US);
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/12 (2006.01); C07D 211/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Sterically hindered N-hydrocarbyloxyamines are prepared from hindered amine N-oxyl compounds by a process which uses hydrogen peroxide or a hydrogen peroxide equivalent, a catalytic amount of a peroxide decomposing transition metal salt, metal oxide, or metal-ligand complex, a hydrocarbon solvent containing no activated hydrogen atoms, and a relatively inert cosolvent. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.