Stabilized organic material

An organic material which has been stabilized against damage caused by light, heat and oxygen and which contains

• (a) at least one sterically hindered amine of the polyalkylpiperidine type and
• (b) at least one o-hydroxyphenyl-s-triazine, wherein the triazine compound (b) is a compound of the formula I
• in which n is 1 to 4,
• R1 and R2 independently of one another are H, OH, C1-C12alkyl, cyclohexyl or trifluoromethyl,
• R3 and R4 independently of one another are H, OH, C1-C12alkyl, cyclohexyl, C1-C18alkoxy or halogen and, in the event that n=1, can also be a radical —OR7,
• R5 and R6 independently of one another are H, C1-C12alkyl or halogen,
• R7, if n is 1, is a) C1-C18alkyl which is substituted by one or more of the groups OH, C1-C18alkoxy, C3-C18alkenoxy, halogen, phenoxy (which is unsubstituted or substituted by C1-C18alkyl, C1-C18alkoxy or halogen), furyloxy,
• —COOH, —COOR8, —CONH2, —CONHR9, —CON(R9)(R10), —NH2, —N, —N(R9)(R10), —NHCOR11, —CN and/or by —O—CO—R11,
• b) C4-C50alkyl which is interrupted by one or more O and can be substituted by OH or/and glycidyloxy,
• c) C3-C6alkenyl,
• d) glycidyl or a group
• e) cyclohexyl which is unsubstituted or substituted by OH or —OCOR11,
• f) C7-C11phenylalkyl which is unsubstituted or substituted by OH, Cl or CH3,
• g) —CO—R12 or
• h) —SO2—R13,
• and if n is 2, R7 is a) C2-C16alkylene,
• b) C4-C12alkenylene,
• c) xylylene,
• d) C3-C20alkylene which is interrupted by one or more O and/or substituted by OH,
• e) a group —CH2CH(OH)CH2O—R15—OCH2CH(OH)CH2—, —CO—R16—CO—, —CO—NH—R17—NH—CO— or —(CH2)m—COO—R18—OOC—(CH2)m— (in which m is 1 to 3) or
• and if n is 3, R7 is a group
• and if n is 4, R7 is a group
• R8 is C1-C18alkyl, C3-C18alkenyl, C3-C20alkyl which is interrupted by one or more O, N or S and/or substituted by OH, C1-C4alkyl which is substituted by —P(O)(OR14)2, —N(R9)(R10) or —OCOR11 and/or OH, C3-C18alkenyl, glycidyl or C7-C11phenylalkyl,
• R9 and R10 independently of one another are C1-C12alkyl, C3-C12alkoxyalkyl, C4-C16dialkylaminoalkyl or C5-C12cycloalkyl, or R9 and R10 together are C3-C9alkylene or C3-C9oxaalkylene or C3-C9azaalkylene,
• R11 is C1-C18alkyl, C2-C18alkenyl or phenyl,
• R12 is C1-C18alkyl, C2-C18alkenyl, phenyl, C1-C12alkoxy, phenoxy, C1-C12alkylamino or C6-C12arylamino or a group —R24—COOH or —NH—R17—NCO,
• R13 is C1-C12alkyl, C6-C12aryl or C7-C14alkaryl,
• R14 is C1-C12alkyl or phenyl,
• R15 is C2-C10alkylene, C4-C50alkylene which is interrupted by one or more O, phenylene or a group -phenylene-X-phenylene- in which X is —O—, —S—, —SO2—, —CH2— or —C(CH3)2—,
• R16 is C2-C10alkylene, C2-C10oxaalkylene or C2-C10thiaalkylene, C6-C12arylene or C2-C6alkenylene,
• R17 is C2-C10alkylene, phenylene, tolylene, diphenylenemethane or a group
• R18 is C2-C10alkylene or C4-C20alkylene which is interrupted by one or more O,
• R19 is C3-C12alkanetriyl,
• R20 is C4-C12alkanetetryl,
• R23 is C2-C10alkylene, phenylene or a group
• wherein X is O, S, SO2, CH2 or C(CH3)2, and
• R24 is C2-C14alkylene, vinylene or o-phenylene.