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US 4,288,631 AGranted
UV Stabilizers, coating compositions and composite structures obtained therefrom
AssigneeGeneral Electric Company
InventorTa-Yen Ching
Life of this patent
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Abstract
Certain 3-alkylhydroxybenzophenone derivatives, such as 2,4-dihydroxy-3-methylbenzophenone have been found to be superior as UV stabilizers for a variety of organic polymeric substrates. Coating compositions of such stabilizers in organic resins, for example, melamine can be used to protect such polymeric substrates from the effects of exposure to UV radiation.
Claims2
2,4-dihydroxy-4'-methoxy-3-methylbenzophenone.
3-methyl-2,4,4'-trihydroxybenzophenone.
Dependencies are inferred from the claim text.