Urethanes of hydroxybenzotriazoles
AssigneeGeneral Electric Company
InventorsSiegfried H. Schroeter, Daniel R. Olson
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Abstract
Urethanes of hydroxybenzotriazoles and hydroxybenzophenones which can be chemically modified upon heating have been found useful in imparting weather resistance to plastic substrates when applied as part of a UV curable resin which can be subsequently heated after cure. UV curable resins containing such urethanes and the use of such resins to treat thermoplastic substrates are also described.
Claims3
Organic urethanes of the formula, ##STR3## where R is a member selected from the group consisting of a C.sub.(1-12) aliphatic hydrocarbon radical, a C.sub.(6-13) aromatic hydrocarbon radical, and halogenated derivatives thereof, "a" is an integer equal to 1 or 2, and when a is 1, R is monovalent, and when a is 2, R is divalent, Z is an aromatic organic radical having the formula, ##STR4## where R.sup.1, R.sup.2, and R.sup.3 can be the same of different monovalent radicals selected from the group consisting of C.sub.(1-12) alkyl radicals, C.sub.(1-4) alkoxy radicals, halogen and hydrogen.
2-(2-benzotriazol-2-yl)-4-t-octylphenyl N-phenylcarbamate.
2-(2-benzotriazol-2-yl)-4-t-octylphenyl N-ethylcarbamate.
Dependencies are inferred from the claim text.