Phenyl triazine co-stabilizers for stabilized polyurethanes

A composition comprising

• a polyurethane;
• at least one UV absorber;
• at least one hindered amine light stabilizer;
• and
• at least one phenyl triazine of formula (A)
• wherein
• G1 is —O-E1, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4alkyl,
• G2 is —O-E2 when G1 is —O-E1, or H when G1 is not —O-E1,
• E1 is hydrogen, C1-C18 alkyl, C3-C50 alkyl interrupted by oxygen, C3-C50 hydroxyalkyl interrupted by oxygen, or a group of formula P
• wherein, R, R′ and R″ independently of one another are C1-C18 alkylene,
• b is an integer in the range of 1 to 3, or a group of formula Q
• wherein T and U independently of one another are linear or branched C1-C18 alkyl,
• wherein b is 1 when G1 is phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl,
• E2, E3, E4, E5, and E6 independently of one another are hydrogen, hydroxy, C1-C18 alkyl, phenyl
• or phenyl substituted by 1, 2 or 3 C1-C4alkyl, or a group of formula Q
• wherein, T and U independently of one another are linear or branched C1-C18 alkyl, and
• E7 independently of one another are hydrogen, or C1-C18 alkyl.