A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 15/60 (2006.01) C08F 8/00 (2006.01) C08J 3/24 (2006.01) C08L 101/14 (2006.01)
Patent
CA 2421216
The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of cheir capacity for transportation of liquids in the swollen state, and which have been after-crosslinked on their surface at temperatures of >150°C with a combination of polyol as after-crosslinking compound and a cation in the form of 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 de polyol en tant que composé de post-réticulation et d'un cation sous forme d'une solution aqueuse, à des températures supérieures ou égales à 150 ·C.
Harren Jorg
Mertens Richard
Borden Ladner Gervais Llp
Evonik Stockhausen Gmbh
Stockhausen Gmbh & Co. Kg
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