Coating processes – Coating has x-ray – ultraviolet – or infrared properties
Patent
1995-05-23
1997-03-18
Beck, Shrive
Coating processes
Coating has x-ray, ultraviolet, or infrared properties
4273882, 427393, 4273935, 427397, B05D 302
Patent
active
056120842
ABSTRACT:
Novel aminoplast anchored UV stabilizers are provided. Compared to unanchored stabilizers, the anchored stabilizers disclosed herein have increased compatibility with coating resins and have reduced volatility due to higher molecular weights resulting from anchoring. A process for preparing the anchored stabilizers by the reaction of unanchored stabilizers with alkoxymethylated aminoplasts in a sulfuric acid medium is also provided. The unanchored stabilizers include 2-(2-hydroxyaryl)benzotriazoles, 2-hydroxybenzophenones, 2-(2-hydroxyaryl)-4,6-diaryl-1,3,5-triazines, salicylic acid derivatives, 2-hydroxyoxanilides, and blocked derivatives thereof as well as mixtures of two or more stabilizers. The aminoplasts include alkoxymethylated derivatives of glycolurils, melamines, and benzoguanamines.
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Szita Jeno G.
Waterman Paul S.
Beck Shrive
Cameron Erma
Cytec Technology Corp.
Kelly Michael J.
Lerman Bart E.
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