Coatings materials stabilized against the action of light

Claim 1

Coating material containing, as a crypto light stabiliser, a compound of the formula I or II ##STR26## wherein x is 1, R 1 in the case of x=1 and in the formula II is an acyl group of the formula --CO--R 5 , a sulfonyl group of the formula --SO 2 --R 6 , a phosphoryl group of the formula --P(O) r (R 14 )(R 15 ), R 2 is C 1 -C 12 -alkyl, C 5 -C 12 -cycloalkyl, phenyl, C 7 -C 9 -phenylalkyl, C 3 -C 5 -alkenyl or halogen, R 3 in the formula I is C 1 -C 12 -alkyl, C 5 -C 12 -cycloalkyl, phenyl, C 7 -C 9 -phenylalkyl, halogen or a group of the formula --(CH 2 ) n --COOR 9 or --(CH 2 ) n --CO--N(R 10 )(R 11 ) , and in the formula II is a divalent radical of the formula: ##STR27## R 4 is hydrogen, halogen, C 1 -C 8 -alkyl, C 7 -C 9 -phenylalkyl, C 1 -C 8 -alkoxy or C 2 -C 8 -alkoxycarbonyl, R 5 is C 1 -C 18 -alkyl, C 2 -C 18 -alkenyl, --CH 2 --CO--CH 3 , phenyl, phenyl substituted by C 1 -C 12 -alkyl, C 1 -C 4 -alkoxy or benzoyl, or is C 7 -C 12 -arylalkyl or C 1 -C 12 -alkoxy, R 6 is C 1 -C 12 -alkyl, C 6 -C 10 -aryl or C 7 -C 18 -alkylaryl, R 9 is hydrogen, C 1 -C 12 -alkyl or a group of the formula --(CH 2 CH 2 O) p --R 1 , R 10 and R 11 independently of one another are hydrogen, C 1 -C 12 -alkyl, which can be interrupted by O or N, C 5 -C 12 -cycloalkyl, C 7 -C 9 -phenylalkyl, C 3 -C 5 -alkenyl, phenyl or a 2,2,6,6-tetramethyl-4-piperidinyl radical, or R 10 and R 11 together are C 4 -C 6 -alkylene, -oxaalkylene or -azaalkylene, R 12 is C 1 -C 12 -alkylene, which can be interrupted by 1-3 O atoms, R 13 is C 1 -C 12 -alkyl or C 6 -C 10 -aryl, R 14 and R 15 independently of one another are each C 1 -C 12 -alkoxy, phenoxy, C 1 -C 12 -alkyl, cyclohexyl, benzyl, phenyl or tolyl, n is 1 or 2, p is a number from 1 to 10, q is a number from 2 to 12, and r is 0 or 1.