Ethylene Vinyl Acetate Eva Copolymers A General Review

The significance and features of ethylene vinyl acetate eva copolymers in initial research and development led to commercial drug delivery systems.

Ethylene vinyl acetate eva copolymers a general review. The following items are reviewed. A general review of eva copolymers is given. Eva copolymer development methods of manufacture fundamental structural attributes typical properties processing. Fda status information elvax 460a resin complies with food and drug administration regulation 21 cfr 177 1350 a 1 ethylene vinyl acetate copolymers subject to the limitations and requirements therein.

Ethylene vinyl acetate eva trade name elvax 220w was supplied from dupont. Ethylene vinyl acetate is a type of plastic a polymer with a wide variety of uses both residential and industrial. Ethylene vinyl acetate eva copolymers are used extensively in the wire and cable industry for making heat shrinkable insulation semi conductive insulation jackets and flame retardant insulation. A general review of eva copolymers is given.

The following items are reviewed. Ethylene vinyl acetate eva also known as poly ethylene vinyl acetate peva is the copolymer of ethylene and vinyl acetate the weight percent of vinyl acetate usually varies from 10 to 40 with the remainder being ethylene. The food and drug administration fda has stated that ethylene vinyl acetate is safe when used in food production packaging or transportation and it s not an especially dangerous material. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used.

Ethylene vinyl acetate terpolymers eva mah are random copolymers of ethylene vinyl acetate and maleic anhydride produced by high pressure polymerization in tubular reactors. Skin and eye burns from molten product. Ethylene vinyl acetate eva resins may thermally degrade and release corrosive by products. Eva based hot melts are able to fulfill various requirements in applications such as packaging bookbinding or label sticking.

Ethylene vinyl acetate graft maleic anhydride eva ma trade name fusabond c mc190d was received from dupont italia. This review examines the breadth of eva use in drug delivery and will aid the researcher in locating key references and experimental results as well as understanding the features of eva as a. Ethylene vinyl acetate eva copolymers are used extensively in the wire and cable industry for making heat shrinkable insulation semi conductive insulation jackets and flame retardant insulation. It contains 28 vinyl acetate and has a density of 0 951 g cm 3 mfr 190 c 2 16 kg 150 g 10 min and melting point of 70 c.

1272 2008 regulation ec no 1907 2006 ethylene vinyl acetate copolymer rev 1 01 2013 page 3 4 2. Ethylene vinyl acetate terpolymer ethylene vinyl acetate maleic anhydride properties and applications. Eva copolymer development methods of manufacture fundamental structural attributes typical properties. Most important symptoms and effects both acute and delayed.