Liquid transport film

Details Liquid transport film Liquid transport film

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) C08L 23/00 (2006.01) C08L 51/06 (2006.01)

Patent

CA 2543903

To provide an improved liquid transport film capable of maintaining high transport characteristics particularly for a liquid having high polarity not only at the initial stage but also in the use environment. A polyolefin-base liquid transport film having on the surface thereof a plurality of fine grooves, wherein a hydrophilic monomer is grafted to the surface of the fine grooves by radiation graft polymerization to form a graft layer and the hydrophilic monomer is an N,N-dialkylaminoalkyl (meth)acrylamide and/or a salt thereof.

L'objectif de l'invention est de produire un film de transport de liquides amélioré capable de conserver des caractéristiques élevées de transport en particulier pour un liquide présentant une grande polarité non seulement au stade initial mais également dans un environnement d'utilisation. L'invention concerne un film de transport de liquide à base de polyoléfine présentant une pluralité de rainures fines à sa surface, un monomère hydrophile étant greffé à la surface des rainures fines par polymérisation avec greffage et par rayonnement, ce qui permet de former une couche de greffe et le monomère hydrophile étant un N,N-dialkylaminoalkyle (méth)acrylamide et/ou un de ses sels.

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