Compositions containing ultraviolet-absorbing stabilizing substituted by an aliphatic hydroxyl group
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United States of America Patent
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Oct 1, 1985
Issued Date -
N/A
app pub date -
Jun 20, 1983
filing date -
Nov 5, 1981
priority date (Note) -
Expired
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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.
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