abstract |
{PG,1 A novel ultra-violet absorber comprising a cyano-oligomer of Formula I of FIG. {B 1 {L of the drawings wherein (Ar){hd 1{l , (Ar){hd 2{l , R{HU 1{L , R{HU 2{L , R{HU 3{L , R{HU 4 {L and Y are organic radicals is given. A radiation curable coating composition with the novel cyano-oligomer, urethane oligomers and vinyl monomers is also given. A process for curing the coating is also disclosed. |