초록 ▼

Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a hydroxylamine moiety where the N-hydroxy group is not attached to a nitrogen atom in a piperidine ring are valuable stabilizers for protecting polymer compositions against the deleterious

Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a hydroxylamine moiety where the N-hydroxy group is not attached to a nitrogen atom in a piperidine ring are valuable stabilizers for protecting polymer compositions against the deleterious effects of actinic light and from the adverse effects of high temperature polymer processing environments.

대표청구항 ▼

A compound of formula II [Figure] (II) wherein E is hydrogen, oxyl, hydroxyl, alkyl of 1 to 18 carbon atoms, alkenyl of 3 to 18 carbon atoms, aralkyl of 7 to 9 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, hydroxylalkyl of 2 to 6 carbon atoms, alkoxyalkyl of 2 to 20 carbon atoms, alkanoyl of 1 t

A compound of formula II [Figure] (II) wherein E is hydrogen, oxyl, hydroxyl, alkyl of 1 to 18 carbon atoms, alkenyl of 3 to 18 carbon atoms, aralkyl of 7 to 9 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, hydroxylalkyl of 2 to 6 carbon atoms, alkoxyalkyl of 2 to 20 carbon atoms, alkanoyl of 1 to 18 carbon atoms, alkoxy of 1 to 18 carbon atoms, cycloalkoxy of 5 to 12 carbon atoms, aryloxy of 6 to 10 carbon atoms, hydroxyalkoxy of 2 to 6 carbon atoms, alkoxyalkoxy of 2 to 20 carbon atoms, aralkoxy of 7 to 15 carbon atoms or bicyclo or tricycloaliphatic oxy radical of 7 to 12 carbon atoms; R and R1 are independently alkyl of 1 to 4 carbon atoms or together R and R1 are pentamethylene; X is a direct single bond, n is 2-4, when n is 2, T is alkylene of 2 to 12 carbon atoms, arylene of 6 to 10 carbon atoms, xylylene, －CH2CHOHCH2－, －CH2CHOHCH2－O－G1－O－CH2CHOHCH2－, －CH2-phenylene－COO－G1－OCO-phenylene－CH2－, －CH2CH2－COO－G1－OCO－CH2CH2－or －CH2-phenylene－CH2－OCO－G1－COO－CH2-phenylene－CH2－, G1 is alkylene of 2 to 12 carbon atoms, arylene of 6 to 10 carbon atoms or cycloalkylene of 6 to 12 carbon atoms; when n is 3, T is alkanetriyl of 3 to 6 carbon atoms, or is [Figure] and when n is 4, T is alkanetetrayl of 4 to 6 carbon atoms.