Kuraray Announces That Gas Impermeability of EVAL Ethylene Vinyl Alcohol Polymer Resin Contributes to the Environment



    Furthering its corporate mission that states: "We in the Kuraray
    Group are committed to opening new fields of business using pioneering
    technology and contributing to an improved natural environment and
    quality of life," Kuraray is contributing to the environment through
    development and application of its unique functional materials.

    One such material is EVAL, which was developed by Kuraray as the
    world's first copolymer EVOH (ethylene vinyl alcohol polymer resin).
    It has the highest level of effectiveness in gas impermeability in
    plastics. Kuraray holds a 70% share of the world market for this
    material.

    Because of its special characteristics, EVAL contributes to the
    environment through two main applications:

    1) It is widely used in the packaging of mayonnaise, ketchup and
    similar products as it prevents degradation or deterioration that
    results from oxygen entering the container.

    Plastic is being increasingly used for food packaging, and the
    containers are lighter than comparable glass or tin containers. The
    reduced weight of the containers is lessening the burden on
    distribution and on the disposal of unused food and in these ways
    contributes to preservation of the environment.

    2) It is being widely used as a barrier layer in the plastic fuel
    tanks of cars and other vehicles to isolate the volatile elements of
    gasoline.

    In addition to protecting against the emission of volatile
    elements into the atmosphere, plastic fuel tanks have also helped car
    manufactures to reduce the weight of automobiles, contributing to
    energy conservation.

    With the creation of a new application, Kuraray announces that
    EVAL will contribute to the environment-friendly product development
    of the U.S. corporation NIKE Inc, which is a leader in its response to
    environmental issues.

    In 2006, NIKE Inc. eliminated greenhouse gases in all of its NIKE
    Air cushioning, a goal the company has been pursuing for more than a
    decade to support its own environmental and sustainable product
    innovation and design goals.

    NIKE accomplished this goal with a new proprietary manufacturing
    technology using Kuraray's EVAL EVOH. The new process enabled NIKE to
    switch from SF6 and PFC greenhouse gases to more environment-friendly
    nitrogen in its NIKE Air cushioning.

    The process also improved product performance and delivered
    innovation to consumers, with NIKE introducing the first running shoe
    featuring full 360 NIKE Air cushioning.

    The Kuraray Group is continuing to concentrate on its
    environmental contributions in other ways as well. Such measures
    include a revolutionary process to stop the use of organic solvents in
    the manufacture of the next-generation man-made leather (TIRRENINA)
    and the provision of a carbon-neutral polylactic acid material
    developed from corn.

    Italicized product names are trademarks of Kuraray.