Pulverulent, cross-linked polymers, capable of absorbing...

Details Pulverulent, cross-linked polymers, capable of absorbing... Pulverulent, cross-linked polymers, capable of absorbing...

C - Chemistry, Metallurgy

08

J

C08J 3/24 (2006.01) C08L 101/14 (2006.01)

Patent

CA 2426514

The invention relates to absorbent, cross-linked polymers based on partially neutralised, monoethylenically unsaturated monomers that bear acidic groups. Said polymers exhibit improved properties with regard to their ability to transport liquids in a swollen state. The surface of the polymers is postreticulated, using a combination of an organic cross-linking compound, excluding polyols, and a cation that is in salt form in an aqueous solution.

L'invention concerne des polymères réticulés, à pouvoir absorbant, à base de monomères monoéthyléniquement insaturés, partiellement neutralisés et portant des groupes acide, qui présentent des propriétés améliorées notamment en ce qui concerne leur capacité à transporter des liquides à l'état gonflé. Les polymères selon l'invention ont été post-réticulés à leur surface avec une combinaison constituée d'un composé de réticulation organique, à l'exception de polyols, et d'un cation sous forme de son sel dans une solution aqueuse.

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