Water-swellable material comprising coated water-swellable...

Details Water-swellable material comprising coated water-swellable... Water-swellable material comprising coated water-swellable...

A - Human Necessities

61

L

A61L 15/00 (2006.01) A61L 15/42 (2006.01) A61L 15/60 (2006.01) C08J 7/00 (2006.01)

Patent

CA 2534914

This invention relates to a water-swellable material comprising water- swellable polymers that are coated with a coating agent that comprises a phase- separating elastomeric material, which allows swelling of the water-swellable polymers, without breakage of the coating. The invention also relates to a process of making specific coated water-swellable polymers using a phase- separating elastomeric material, and materials obtainable by such a process.

La présente invention concerne un matériau gonflable dans l'eau comprenant des polymères gonflables dans l'eau qui sont revêtus d'un agent de revêtement comprenant un matériau élastomère à séparation de phase, lequel permet le gonflement des polymères gonflables dans l'eau, sans rupture du revêtement. L'invention concerne également un procédé de fabrication de polymères gonflables dans l'eau, revêtus, spécifiques, à l'aide d'un matériau élastomère à séparation de phase, ainsi que des matériaux pouvant être obtenus selon ledit procédé.

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