Monday, April 23, 2012

EVOH Resins


EVOH Resins

Ethylene Vinyl Alcohol, commonly abbreviated EVOH, is a formal copolymer of ethylene and vinyl alcohol. Because the latter monomermainly exists as its tautomer acetaldehyde, the copolymer is prepared by polymerization of ethylene and vinyl acetate to give the ethylene vinyl acetate (EVA) copolymer followed by hydrolysis.

One of the major applications for EVOH is in auto-motive fuel systems to control emissions of hydro-carbons from fuel lines and tanks.
The first and foremost producer of EVOH (ethylene vinyl-alcohol copolymer resins) under the name EVAL™ and the manufacturer of KURARISTER™ film, today the Kuraray Group consists of about 70 companies, employing around 7,000 people worldwide.

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