TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The renewable raw materials are plant materials comprising sugar cane and beet sugar, maple, date palm, palm sugar, Sorghum, American agave, corn, wheat, barley, rice, potatoes, cassava, sweet potato, seaweed, and materials comprising cellulose or hemicellulose such as wood, straw or paper.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: At least part of the carbon atoms of the carboxylic acid vinyl ester is obtained from renewable sources. The copolymer is: a terpolymer of ethylene, at least one carboxylic acid vinyl ester and at least one unsaturated carboxylic acid anhydride, in which optionally at least part of the carbon atoms of the unsaturated carboxylic acid anhydride is obtained from renewable sources; terpolymer of ethylene, at least one vinyl ester and at least one unsaturated carboxylic acid ester such as an acrylic or methacrylic ester of carboxylic acid in which optionally at least a portion of the carbon atoms of the unsaturated carboxylic acid ester is obtained from renewable sources; statistical copolymers of ethylene and at least one carboxylic acid vinyl ester, preferably statistical copolymers of ethylene and vinyl acetate and statistical copolymers of ethylene and vinyl propionate; statistical terpolymers of ethylene, at least one ester carboxylic acid vinyl ester and maleic anhydride, preferably statistical terpolymers of ethylene, vinyl acetate and maleic anhydride and statistical copolymers of ethylene, vinyl propionate and maleic anhydride; terpolymers of ethylene, vinyl acetate and an (meth)acrylic ester of carboxylic acid; or statistical copolymers of ethylene and at least one vinyl ester grafted by unsaturated carboxylic acid anhydride, preferably statistical copolymers of ethylene and vinyl acetate grafted by maleic anhydride. The copolymer is partially or completely saponified. Preferred Process: The copolymerization step comprises high-pressure radical copolymerization carried out by introducing ethylene, or comonomer and polymerization initiator at elevated pressure in a tubular reactor at a temperature of 80-325 degrees C, or in an autoclave reactor at a temperature of 150-290 degrees C, where the amount of comonomer introduced into tubular reactor or autoclave has up to 60 wt.% relative to the total ethylene and comonomers introduced into the reactor. The copolymerization step is performed in a tubular reactor, and the mixture of ethylene and comonomer is injected at least another point in the reactor, where the injection is followed by another injection of initiator or mixture of initiators. EXAMPLE - Ethylene (12 tons/hour) and vinyl acetate (800 kg/hour) were introduced in a reactor. The mixture was compressed in hyper compressor at 2400 bar. The mixture was heated to 120 degrees C and Luperox 11(RTM: Tert-butylperoxypivalate)/Luperox 26 (RTM: Tert-butylperoxy-2-ethylhexanoate) mixture was injected. The temperature was raised to 210 degrees C and then decreased to 160 degrees C. Luperox 11 (RTM: Tert-butylperoxypivalate)/Luperox 26 (RTM: Tert-butylperoxy-2-ethylhexanoate) mixture was reinjected. The temperature raised to 210 degrees C and then decreased to 160 degrees C to obtain 1.7 tons/hour of ethylene copolymer/vinyl acetate with a vinyl acetate content of 6 wt.% and a melt index of 0.5.