Thermoplastic polymer film comprising a fluorochemical compound

Details Thermoplastic polymer film comprising a fluorochemical compound Thermoplastic polymer film comprising a fluorochemical compound

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) C08J 5/18 (2006.01) C08K 5/06 (2006.01) C08L 23/12 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2310689

The invention provides a method of making a film comprising the steps of: (A) providing a film comprising a layer of thermoplastic polymer having dispersed therein a fluorochemical hydrophilicity imparting compound according to the formula: Rf-Q-Z-X-T, wherein Rf represents a partially or fully fluorinated aliphatic group having at least 3 carbon atoms, Q is a linking group or a covalent bond, Z is a poly(oxyalkylene) group, X is an oxygen atom or NR wherein R is a hydrogen atom or an alkyl or aryl group, and T is a hydrogen atom or an organic group having no more than 6 carbon atoms; (B) applying a coating comprising at least one non-volatile component on said film; and (C) when said coating contains volatile components, drying said coating to remove said volatile components from said coating. Further provided are single- and multi-layer films.

L'invention concerne un procédé de fabrication d'un film qui consiste à: (A) prendre un film comprenant une couche de polymère thermoplastique à l'intérieur duquel est dispersé un composé chimique fluoré à propriétés hydrophiles représenté par la formule: R¿f?-Q-Z-X-T, dans laquelle R¿f? représente un groupe aliphatique partiellement ou complètement fluoré ayant au moins 3 atomes de carbone, Q représente un groupe de liaison ou une liaison covalente, Z représente un groupe poly(oxyalkylène), X représente un atome d'oxygène ou NR, où R représente un atome d'hydrogène ou un groupe alkyle ou aryle, et T représente un atome d'hydrogène ou un groupe organique n'ayant pas plus de 6 atomes de carbone; (B) à appliquer sur le film un revêtement comprenant au moins un composant non volatil; et (C), lorsque le revêtement comprend des composants volatils, à sécher ce revêtement de manière à en éliminer les composants volatils.

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