Polymeric article having improved hydrophilicity and a...

Details Polymeric article having improved hydrophilicity and a... Polymeric article having improved hydrophilicity and a...

C - Chemistry, Metallurgy

08

J

C08J 7/00 (2006.01) C08J 7/04 (2006.01) C09K 3/18 (2006.01) G02B 5/12 (2006.01)

Patent

CA 2188413

A hydrophilic polymeric article (10) has metal oxide particles dispersed throughout a polymeric binder material (12). A major surface (18) of the polymeric material (12) is treated so as to remove polymeric binder to provide a higher ratio of metal to carbon atoms on the major surface (18) of the polymeric article (10) relative to its interior. The polymeric article (10) provides extraordinary water-spreading effects on the major surface (18), making the article (10) particularly suitable for use as a surface covering on a retroreflective sheeting (16).

Article (10) en polymère hydrophile comportant des particules d'oxyde métallique dispersées dans un matériau liant polymère (12) dont une large surface (18) est traitée de manière à en éliminer le liant et y obtenir un rapport entre les atomes de métal et de carbone plus élevé qu'à l'intérieur de l'article (10). La surface ainsi traitée (18) possède une capacité extraordinaire d'étalement de l'eau, ce qui rend l'article (10) particulièrement indiqué comme revêtement pour feuilles réfléchissantes (16).

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