TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The hyperoxide cross-linking agent is chosen from tertiary butyl peroxide-ethyl caproate, benzylhydroperoxide tert-amyl ester, 1,1-di(t-butylperoxy)-3,5,5-trimethyl-cyclohexane, 2,2-di(t-butylperoxy)-butane, t-butylperoxybenzoate, t-butylperoxy-2-ethyl caproate, t-butylperoxy-3,5,5-trimethyl caproate, t-butylperoxy-isopropyl carbonate, t-butylperoxy-2-ethylhexyl carbonic ester, di-tertiary butyl-di-isopropyl-mono-peroxy bicarbonate, di-tertiary butyl-di-(2-ethylhexyl)-mono-peroxy bicarbonate, di-tertiary pentyl-di-(2-ethylhexyl)-mono-peroxy bicarbonate and di(butylperoxy isopropyl)-benzene. The ultraviolet absorbent is chosen from 2,2'-tetramethylene-di(3,1-benzoxazinyl-4-ketone), 2,8-dimethyl-4H,6H-benzo(1,2-d;5,4-d')-di(1,3)-oxaprozin-4,6-diketone, 2-hydroxy-4-epoxide benzoyl-2'-carboxy-benzophenone, 2,2'-dihydroxy-4,4'-dimethoxy-benzophenone, 2-hydroxy-5-chloro benzophenone, 2-(2'-hydroxy-5'-tertiary butyl phenyl) benzotriazole, bisphenol A disalicylate, 2-(2-hydroxy-3,5-di-tertiary pentyl phenyl) benzotriazole, 2,2'-(1,4-phenylene)-di-4H-3,1,benzoxazinyl-4-ketone, 2-(2'-hydroxy-3',5'-dimethyl phenyl) benzotriazole, 2-(2'-hydroxy-4'-dimethyl phenyl) benzotriazole, di-(2-methoxy-hydroxy-5-benzophenone) methane, 2-(2'-hydroxy-3',5'-methyl phenyl) benzotriazole and 2-(2'-hydroxy-3',5'-methyl phenyl)-5-carboxylic butyl ester benzotriazole. The hindered amine antioxidant is chosen from 2-hydroxy-4-alkoxy benzophenone, 3,5-di-tertiary butyl-4-hydroxy-benzoic acid hexadecyl ester, tri-(1,2,2,6,6-pentamethyl-4-piperidyl) phosphite ester, dioctyl sebacate-2,2,6,6-tetramethyl piperidinyl ester, polymer of N,N'-di(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexamethylenediamine and 2,4-dichloro-6-(1,1,3,3-tetramethyl butyl)-azyl-1,3,5-triazine, polymer of N,N'-di(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexamethylenediamine and 2,4-dichloro-6-(4- morpholinyl)-1,3,5-triazine, mixture of N,N'-di(2,2,6,6-tetramethyl-4-piperidyl) dioctyl sebacate and methyl-(1,2,2,6,6-tetramethyl-4-piperidyl) dioctyl sebacate, 2,6-di-tertiary butyl-4-methylphenol, and mixture of 1,3,5-tri(4-tertiary butyl-3-hydroxy-2,6-dimethyl benzyl)1,3,5-triazine-2,4,6-(1H,3H,5H)-triketone and di-(2,4-dicumyl phenyl) pentaerythritol diphosphite.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The content of vinylacetate in ethylene-vinyl acetate copolymer is 15-33 mol%. The polymer has melting point of 35-100 degrees C, melt index of 7-55 and number-average molecular weight of 5000-180000. The content of octylene in ethylene-octylene copolymer is 20-40 mol%. The Mooney viscosity of ethylene-octylene polymer is 3-35.