A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 15/60 (2006.01) A61L 15/22 (2006.01) A61L 15/26 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08J 9/00 (2006.01) C08L 75/00 (2006.01) C08L 75/08 (2006.01)
Patent
CA 2172887
A foamed isocyanate-based polymer having a cellular structure and containing a superabsorbent material, the polymer being capable of: (i) absorbing at least about 20 times its weight of an aqueous fluid maintained at a temperature of from about 20° to about 25°C, and (ii) retaining at least about 20 times its weight of absorbed aqueous fluid which is bound to the superabsorbent material. A process for producing a foamed isocyanate-based polymer comprising the steps of: providing a substantially uniform mixture comprising an isocyanate, an active hydrogen-containing compound and a superabsorbent material, the superabsorbent material being capable of absorbing at least about 20 times its weight of an aqueous fluid maintained at a temperature in the range of from about 20° to about 25°C; adding to the substantially uniform mixture an aqueous blowing agent and a catalyst to form a reaction mixture; and expanding the reaction mixture to produce the foamed isocyanate-based polymer; wherein the active hydrogen-containing compound comprises from about 10% to 100% by weight of a hydrophilic active hydrogen-containing compound and from 0 to about 90% by weight a non- hydrophilic active hydrogen-containing compound. The foamed isocyanate- based polymer is ideally suitable for use in an absorption layer in a personal hygiene device.
Gowling Lafleur Henderson Llp
Woodbridge Foam Corporation
LandOfFree
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