Us3509115a us3509115da us3509115a us 3509115 a us3509115 a us 3509115a us 3509115d a us3509115d a us 3509115da us 3509115 a us3509115 a us 3509115a authority us united states prior art keywords ethylene vinyl acetate pressure reaction mixture temperature prior art date 1968 12 11 legal status the legal status is an assumption and is not a legal conclusion. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used. Eva is used in several applications thanks to the varied properties it possesses.
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