Plastic films with surface anti-fog properties

Details Plastic films with surface anti-fog properties Plastic films with surface anti-fog properties

C - Chemistry, Metallurgy

09

K

C09K 3/18 (2006.01) C08J 3/03 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2164716

This invention provides a water-based, insoluble, heat-sealable, anti-fog coating composition to be used for polymer films. The anti-fog composition of the invention includes a non-ionic, hydrophilic surfactant, a hydrophobic binder compatible with the surfactant in an aqueous medium in an amount sufficient to form an emulsion. A heat-sealable polymer film coated with the heat-sealable anti-fog coating composition of the invention is also provided together with a method for preparing the same.

Cette invention concerne une composition de revêtement antibrouillard, à base d'eau, insoluble et thermosoudable. Cette composition est utilisée sur des films de polymère. La composition antibrouillard de l'invention contient un tensioactif non-ionique et hydrophile, un liant hydrophobe compatible avec le tensioactif en milieu aqueux en une quantité suffisante pour former une émulsion. L'invention concerne également un film de polymère thermosoudable portant une composition de revêtement antibrouillard thermosoudable selon cette invention, ainsi qu'un procédé pour le fabriquer.

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