Ultraviolet-absorbing stabilizers substituted an aliphatic hydro

Details Ultraviolet-absorbing stabilizers substituted an aliphatic hydro Ultraviolet-absorbing stabilizers substituted an aliphatic hydro

1982-09-30

1985-01-29

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

544221, 544222, 548337, C07C 69593

Patent

active

044967578

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-hydroxphenylbenzotriazole, 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 thermoplastic coating systems while exhibiting good stabilization efficacy and compatibility in said systems.

REFERENCES:
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patent: 3860598 (1975-01-01), Rosenkranz
patent: 4278590 (1981-07-01), Dexter et al.
patent: 4308195 (1981-12-01), Mayer et al.
patent: 4414393 (1983-11-01), Dexter et al.
J. R. Geigy, "Ultraviolet Stabilizers . . . ," Chem. Abst. 67: 22492x (1967).
Holmes, et al. "Polarographic Half-Wave Potentials . . . ," Chem Abst. 71: 123368 (1969).
Margotte, et al., "Polymeric U. V. Absorber . . . ," Chem. Abst. 81: 64641q (1974).
Margotte, et al. "Stabilized Polycarbonates," Chem. Abst. 81: 121800s.

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