TECHNOLOGY FOCUS - POLYMERS - Preferred Components: Transparent resin is selected from ethylene - vinyl acetate copolymer, ethylene-olefin copolymer, ethylene-methyl methacrylate copolymer or ethylene-methacrylic acid ionomer. Additive is selected from titanium dioxide, silicon dioxide, hollow glass micro-bead, zinc oxide, tin oxide, indium tin oxide, antimony tin oxide, antimonous oxide, aluminum oxide, calcium carbonate, barium sulfate, montmorillonite, kaolin or talcum powder. Photoinitiator is selected from benzophenone, 4-chloro-benzophenone, 4-methyl benzophenone, - 4-phenyl benzophenone, isopropyl thioxanthone, benzoin dimethyl ether, 4-(N, N- dimethylamino) benzoate, ortho-benzoyl benzoate, 2-hydroxy-2-methyl-1-phenyl acetone, 1-hydroxy cyclohexyl phenyl ketone, 2-methyl-2- (4-morpholinyl) -1- (4- (methylthio) phenyl) -1-propanone, 2, 4, 6-trimethyl-benzoyl - diphenyl phosphine oxide, 2, 4, 6-trimethyl-benzoyl-diphenylphosphine, 2-dimethylamino-2-benzyl--l- (4- (4- morpholinyl) phenyl) -1-butanone or 2-hydroxy-2-methyl -l- (4- (2- hydroxyethoxy) phenyl) -1-propanone. Thermal initiator is selected from tert.-butylperoxy isopropyl carbonate, 2 5-dimethyl-2 5-bis(tert.-butylperoxy)hexane, tert.-Butylperoxy 2-ethylhexyl carbonate, 2, 5-dimethyl-2,5-di (tert.-butylperoxy) hexane, 1,1-bis-(tert.-amylperoxy)-cyclohexane, 1,1 bis (tert.-butylperoxy) cyclohexane, 2,2-bis (tert.-butylperoxy) butane, 1,1-bis(tert.-butylperoxy)cyclohexane, 2-ethylhexyl peroxide carbonate, 2, 5-dimethyl-2, 5-bis (benzoyl peroxy)-hexane, tert.-amyl peroxy carbonate or 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene. Crosslinking agent is selected from trimethylol propane triacrylate, pentaerythritol triacrylate, ethoxylated trimethylol propane triacrylate, propoxylated trimethylol propane triacrylate, ethoxylated glycerol triacrylate, propoxylated glycerol triacrylate, trimethylol propane trimethacrylate, pentaerythritol tetraacrylate, ethoxylated pentaerythritol tetraacrylate, trimethylolpropane tetraacrylate, bis trimethylolpropane tetraacrylate, 1 3 5-triazine, tricyclodecane dimethanol diacrylate, propoxylated neopentyl glycol diacrylate, ethoxylated bisphenol A diacrylate, 2-butyl-2-ethyl-1,3-propanediol diacrylate or diethylene glycol dimethacrylate. Tackifier is selected from silane coupling agent, gamma -aminopropyl triethoxysilane, methacryloxy propyl trimethoxy silane, gamma -2,3- glycidoxypropyl trimethoxysilane or vinyltrimethoxysilane.