Radiation curable coating composition comprising an oligomer, and an ultra-violet absorber
AssigneeGAF Corporation
InventorsDonald H. Lorenz, Shu T. Tu, Donald P. Wyman
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Abstract
A radiation curable coating comprising: A. An oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl; Y is a divalent urethane residue; B. A benzylidene acid ester of Formula IV: ##STR2## wherein R.sup.4 is independently alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.
Claims18
A radiation curable coating composition comprising an acryl urethane oligomer and a benzylidene acid ester ultra-violet light absorber of Formula IV:
- ##STR8## wherein R.sup.4 is independently alkyl or hydroxy alkylene.
A radiation curable coating composition comprising:
- A. an oligomer of Formula I:
- ##STR9## wherein R.sup.1 is hydrogen or methyl;
- Y is a divalent urethane residue;
- B. a benzylidene acid ester ultra-violet light absorber of Formula IV:
- ##STR10## wherein R.sup.4 is independently alkyl or hydroxy alkylene.
A laminate comprising a planar sheet of clear polyvinyl chloride with a film coating 0.1 to 10 mils in thickness comprising an acryl urethane oligomer and a benzylidene acid ester ultra-violet light absorber of Formula IV:
- ##STR13## wherein R.sup.4 is independently alkyl or hydroxy alkylene.
A laminate comprising a planar sheet of polycarbonate with a film coating 0.1 to 10 mils in thickness comprising an acryl urethane oligomer and p-methoxy benzylidene malonic acid dimethyl ester.
Dependencies are inferred from the claim text.