Patent ID: 6905525

Claim:
A composition which comprises (a) candle wax which is white and unscented; white and scented; dyed and unscented; dyed and scented; dipped and unscented; or dipped and scented, and (b) an effective stabilizing amount of a combination of (i) a piperazinone compound of formula (III) and (ii) a UV absorber or an antioxidant, or a UV absorber and an antioxidant wherein the ratio by weight of (i) to (ii) is from 10:1 to 1:10, and with the proviso that, when the UV absorber is a benzotriazole, said benzotriazole has only a hydrogen atom at the 5-position of the benzo ring, wherein R 1 , R 2 , R 3 and R 4 are independently alkyl of 1 to 12 carbon atoms, said alkyl substituted by one or two hydroxyl groups; or R 1 and R 2 together or R 3 and R 4 together or R 1 and R 2 together and R 3 and R 4 together are tetramethylene, pentamethylene or pentamethylene substituted by methyl; R 1 ′, R 2 ′, R 3 ′ and R 4 ′ and R 1 ″, R 2 ″, R 3 ″ and R 4 ″ are defined as for R 1 , R 2 , R 3 and R 4 ; R 5 is hydrogen, oxyl, hydroxyl, cyanoethyl, phenylalkyl of 7 to 15 carbon atoms, said phenylalkyl substituted on the phenyl ring by one to three radicals selected from alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms, phenylalkoxy of 7 to 15 carbon atoms, said phenylalkoxy substituted on the phenyl ring by one to three radicals selected from alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms, cycloalkoxy of 5 to 12 carbon atoms, alkenyl of 3 to 8 carbon atoms, alkynyl of 3 to 8 carbon atoms, alkoxy of 1 to 24 carbon atoms, alkyl of 1 to 24 carbon atoms, said alkyl substituted by one or two hydroxyl groups, said alkyl substituted by alkylcarbonyloxy of 2 to 18 carbon atoms, or said alkyl interrupted by one to twenty oxygen atoms and substituted by one hydroxyl, by alkylcarbonyloxy of 2 to 18 carbon atoms or by 4-hydroxy-3,5-di-tert-butylbenzoyloxy; or R 5 is alkanoyl of 1 to 8 carbon atoms, alkenoyl of 3 to 5 carbon atoms, alkanoyloxy of 1 to 18 carbon atoms, glycidyl, or a group —CH 2 CH(OH)-E where E is hydrogen, methyl or phenyl; R 5 ′ and R 5 ″ are defined as for R 5 ; R 6 is alkyl of 1 to 8 carbon atoms, alkanoyl of 1 to 8 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenylalkyl of 7 to 15 carbon atoms which is unsubstituted or substituted on the phenyl ring by alkyl of 1 to 4 carbon atoms, by alkoxy or 1 to 4 carbon atoms or by a mixture of said groups; or R 6 is alkyl of 1 to 8 carbon atoms or alkanoyl of 1 to 8 carbon atoms substituted by —OH, by alkoxy of 1 to 12 carbon atoms, by benzophenonyl or benzophenonyloxy where one or both phenyl rings of the benzophenone moiety are unsubstituted or substituted by OH, by halogen, by alkyl of 1 to 4 carbon atoms, by alkoxy of 1 to 4 carbon atoms or by a mixture of such groups; and R 6 ′ and R 6 ″ are defined as for R 6 .