TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The peroxide crosslinking agent is tert-butyl peroxide-2-ethylhexyl carbonic ester, benzyl hydroperoxide-tert-butylperoxy pivalate, 2,2-di(tertbutylperoxy)butane, tert-butyl peroxyctocapric acid, tert-butyl perbenzo, tert-butyl peroxide-2-ethylhexoate, o,o-tert-butyl-o-(2-ethylhexyl)-mono-peroxycarbonate, bis(tert-butyl isopropyl peroxide)benzene, tert-butyl peroxide-isopropyl carbonate, 1,1-bis(tertbutyl peroxide)-3,5,5-trimethyl-cyclohexane, o-tertbutyl-o-isopropyl-mono-peroxycarbonate, o,o-tertiary pentyl-o-o-ethylhexyl-monoperoxycarbonate, tert-butyl peroxide-2-ethylhexoate, and/or tert-butyl peroxide-3,5,5-trimethyl hexanoate. The ultraviolet stabilizer is 2,8-dimethyl-4H,6H-benzo (1,2-d:5,4-d')bis(1,3)-oxazine-4,6-dione, 2-(2'-hydroxyl-5-tert-butylphenyl) benzotriazole, 2-hydroxyl-4-methoxy-2'-carboxyl benzophenone, 2-(2'-methyl-4'-hydroxylphenyl)benzophenone, bis-(2-methoxy-4-hydroxyl-5-benzoylphenyl)methane, 2(2'-hydroxyl-5-methylphenyl) benzophenone, 2, 2'-(1,4-phenylene)bis-4H-3,1-benzoxazine-4-one, 2-(2'-hydroxyl-5'-amido) benzotriazole, 2-hydroxyl-5-clorobenzophenone, 2,2'-tetramethylene bis(3,1-benzoxazine-4-one), 2,2'-dihydroxyl-4,4'-dimethoxy benzophenone, 2-hydroxyl-4-benzoyl benzophenone, 2-(2-hydroxyl-3,5-ditertiary-amylphenyl)benzotriazole, 2,2',4,4'-tetrahydroxyl benzophenone, bisphenol A disalicyate, 2,2'-dihydroxyl-4,4'-dimethoxy benzophenone, 2-(2'-hydroxyl-3',5'-dimethylphenyl)benzotriazole, and/or 2-(2'-hydroxyl-5-methylphenyl)-5-butyl carboxylate benzotriazole. The inhered phenol antioxidant is polymer of N,N'-bis(1,2,2,6,6-pentamethyl-4-piperidyl)-1,6-hexamethylenediamine and morpholine-2,4,6-trichloro-1,3,5-triazine, 2-hydroxyl-4-alkoxy benzophenone, polymer of N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexamethylenediamine and 2,4-dichloro-6-(4-morpholine)-1,3,5-triazine, 3,5-di-tert-butyl-4-hydroxylhexadecylester, poly((6-1,1,3,3-tetra-(methylbutyl)amido)-S-triazine-2,4-biradical), (2,2,6,6-tetramethyl-4-piperidyl-imino), bis(1,2,2,6,6-pentamethyl-piperidyl)sebate/methyl-1,2,2,6,6 pentamethyl-4-piperidyl sebate complex, tris(1,2,2,6,6-pentamethyl-4-piperidyl) phosphite ester, 2,6-di-tertbutyl-4-methylphenol, 1,3,5-tris(4-tertbutyl-2,6-dimethylmethyl)-1,3,5-trazine-2,46(1H, 3H, 5H)-trione/bis(2,4-dicumylphenyl)pentaerythritol diphosphite ester complex, polymer of N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexamethylenediamine, 2,4-chloro-6-(1,1,3,3-tetramethylbutyl)amido-1,3,5-triazine, and/or polymer of succinic acid and 4-hydroxyl-2,2,6,6-tetramethyl-1-pipradrol. The mole content of octylene in the ethylene-octylene copolymer is 20-50%. The amount of methyl methacrylate in the ethylene-methyl methacrylate copolymer is 10-30 %mass. Preferred Properties: The melting point of ethylene-octylene copolymer is 40-120 degrees C. The polyethylene has density of 0.90-0.95 g/m3, and melting point of 80-150 degrees C.