226201226201226201226201 2Disclosed is the use of silane and siloxane bis(biphenyl)triazine derivatives of formula (1) wherein n is a number from 1 to 4 if n = 1 X is * L Sil or a radical of formula (11 ) L is a linker selected from a radical of formula (2) R1 R2 R3 independently from each other are C1 Calkyl C Caryl C Calkoxy or O C Caryl R4 R5 R6 and R7 independently from each other are hydrogen C Calkyl C Caryl C Calkoxy or O C Caryl b is a number from 0 to 30 c is a number from 0 to 6 and d is a number from 0 to 1 p is a number from 1 to 250 q is a number from 0 to 250 and Sil Siland Sil independently from each other are a a silane oligosiloxane or polysiloxane moiety if n = 2 X is a bivalent radical of formula (1a) or (1b) x is a number from 2 to 250 y is a number from 0 to 250 and z is a number from 1 to 50 if n = 3 X is a trivalent radical containing a silane oligosiloxane or polysiloxane moiety If n = 4 X is a tetravalent radical of formula (1c) and A is a radical of formula (111 ) as UV absorbers.
