Polymer mixture of hydrogels with different ph value

Details Polymer mixture of hydrogels with different ph value Polymer mixture of hydrogels with different ph value

A - Human Necessities

61

L

A61L 15/60 (2006.01) A61L 15/46 (2006.01)

Patent

CA 2461573

The invention relates to polymeric mixtures containing hydrogel-forming polymers with different pH values and which absorb aqueous fluids. Said polymeric mixtures can be produced by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof. The invention also relates to the production and use of said polymeric mixtures and to the hygienic articles containing said polymeric mixtures. The invention particularly relates to two-component polymeric mixtures from polymers with a pH range from acid to neutral.

L'invention concerne des mélanges polymères contenant des polymères de pH différents, formant des hydrogels absorbant des liquides aqueux, pouvant être fabriqués par polymérisation d'acides carboxyliques oléfiniquement insaturés ou de leurs dérivés. L'invention concerne en outre la production et l'utilisation desdits mélanges polymères, ainsi que des articles hygiéniques contenant ces mélanges. L'invention concerne en particulier des mélanges polymères à deux composants, formés de polymères à domaine de pH acide à neutre.

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