Highly swellable absorption medium with reduced caking tendency

Details Highly swellable absorption medium with reduced caking tendency Highly swellable absorption medium with reduced caking tendency

A - Human Necessities

61

L

A61L 15/60 (2006.01) A61L 15/42 (2006.01) B01J 20/26 (2006.01) C08F 8/30 (2006.01)

Patent

CA 2426802

The invention relates to absorption agents with a high swelling capacity which have a reduced tendency to cake in the presence of high air humidity and/or high temperatures. The invention is characterised in that a swellable polymer is coated with a non-ionic, nitrogen-containing tenside and optionally, a Lewis acid, and caused to react by heating.

La présente invention concerne un agent d'absorption hautement gonflable et à faible tendance à s'agglomérer à une forte humidité atmosphérique et/ou à des températures élevées. L'invention est caractérisée en ce qu'un polymère gonflable est recouvert d'un tensio-actif azoté non ionique et éventuellement d'un acide de Lewis. Ensuite on les chauffe pour les faire entrer en réaction.

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