Treatment of the interior surfaces of resinous enclosure...

Details Treatment of the interior surfaces of resinous enclosure... Treatment of the interior surfaces of resinous enclosure...

C - Chemistry, Metallurgy

08

J

18/1182

C08J 7/18 (2006.01) B65D 23/00 (2006.01) C08J 7/12 (2006.01) C08J 7/14 (2006.01)

Patent

CA 1294106

ABSTRACT Plastic containers are treated to provide increased barrier properties to organics and gases such as oxygen by treating the interior surface of the container with SO3 gas. The SO3 gas is provided by inserting a solid pellet of poly-SO3 into the container and evaporating the SO3 such as with microwave energy, A solid neutralizing agent such as ammonium carbonate is then placed into the container and evaporated with microwave energy to form ammonia which neutralizes the sulfonic acid groups on the surface interior of the container. 33,452-F

518473

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