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US 6,586,507 B2Granted
Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith
AssigneeCiba Specialty Chemicals Corporation
InventorsJames Peter Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera, Christophe Bulliard
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Abstract
Hindered amines substituted on the N-atom with an —O—E—OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal —O—E moieties.
Claims34
A composition which comprises
- (a) an organic polymer or recording material subject to the adverse effects of heat, oxygen and light, and
- (b) an effective stabilizing amount of one or more compounds of formula (6)
- wherein
- G1 and G2 are independently alkyl of 1 to 4 carbon atoms, or G1 and G2 together are pentamethylene;
- E is a straight or branched chain alkylene of 1 to 18 carbon atoms, cycloalkylene of 5 to 18 carbon atoms, cycloalkenylene of 5 to 18 carbon atoms, a straight or branched chain alkylene of 1 to 4 carbon atoms substituted by phenyl or by phenyl substituted by one or two alkyl groups of 1 to 4 carbon atoms;
- b is 1, 2 or 3 with the proviso that b cannot exceed the number of carbon atoms in E, and when b is 2 or 3, each hydroxyl group is attached to a different carbon atoms of E;
- n is 3;
- and
- R3 is 1,3,5-tris(6-carbamoylhexyl)-2,4,6-trioxo-s-triazine.
6 more elements
Dependencies are inferred from the claim text.