Ethylene Vinyl Acetate Molecular Weight

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Ethylene vinyl acetate molecular weight.

Emblem in packaging technology 2012. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used. You can also browse global suppliers vendor prices price manufacturers of ethylene vinyl acetate copolymer 24937 78 8. Vinyl acetate c4h6o2 cid 7904 structure chemical names physical and chemical properties classification patents literature biological activities safety.

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. As the va content increases crystallinity decreases until at 50 the eva is. Chemsrc provides vinyl acetate cas 108 05 4 msds density melting point boiling point structure formula molecular weight etc. Ethylene vinyl acetate eva is a random copolymer of ethylene and varying amounts of vinyl acetate va.

Contains 3 20 ppm hydroquinone as inhibitor 99. Also disclosed are coatings and films comprising the present eva waxes that exhibit sufficient adherence to and. The va comonomer interferes with chain packing reducing crystallinity and thus lowering t m and improving transparency when compared with ldpe. Disclosed are ethylene vinyl acetate eva copolymer waxes comprising at least about 10 by weight of moieties derived from vinyl acetate the copolymer having a polydispersity mw mn of at least about 6 and a molecular weight mw of from about 15 000 to about 40 000.

Us3506630a us3506630da us3506630a us 3506630 a us3506630 a us 3506630a us 3506630d a us3506630d a us 3506630da us 3506630 a us3506630 a us 3506630a authority us united states prior art keywords vinyl acetate ethylene butyraldehyde polymerization mol percent prior art date 1968 02 20 legal status the legal status is an assumption and is not a legal conclusion. Ethylene vinyl acetate polymer.