Compositions containing ultraviolet-absorbing stabilizing substituted by an aliphatic hydroxyl group

Abstract

Ultraviolet-absorbing stabilizers of the formula E--(G--R).sub.n, L--(G--E).sub.m, or [G--E.sub.1 --G--Q].sub.p where E is a radical derived from an oxanilide, benzalmalonate, .alpha.-cyanocinnamate or o-hydroxyphenylbenzotriazole, E.sub.1 is a radical derived from an oxanilide, G is --OCH.sub.2 CHOH--, R is alkyl, phenyl or --CH.sub.2 OT where T is alkyl or alkenyl, n is 1 or 2, m is 2 or 3, L is a direct bond, alkylene or other bis or tris radical, Q has the same meaning as L when m is 2, and p is 1 to 4, are particularly resistant to loss during weathering of outdoor thermoset or theromplastic coating systems while exhibiting good stabilization efficacy and compatibility in said systems.

Dependencies are inferred from the claim text.