Frothed thermoplastic foam and its uses in sanitary...

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 9/30 (2006.01) A61L 15/42 (2006.01) C08L 23/02 (2006.01) A61F 13/47 (2006.01) A61F 13/49 (2006.01)

Patent

CA 2615792

A microcavity-containing, resilient foam comprising a thermoplastic polymer; composite structures comprising such a microcavity-containing foam and a multiplicity of particles contained in such microcavities, preferably aqueous fluid absorbent particles; methods for preparation of such foam and structures; and disposable consumer articles incorporating such foams and composites. The aqueous fluid absorbent characteristics of the foam and composite structures render them useful in the fabrication of disposable consumer articles, in particular hygiene articles designed to rapidly absorb "insults" of bodily fluid thereby conducting such fluids away from contact with the skin of the wearer of the hygiene article. The useful articles include infant and children diapers, adult incontinence pants, feminine hygiene pads, pet urine-absorbent pads and mats, household cleaning pads, surgical drapery, and the like.

La présente invention concerne une mousse résiliente à microcavités comprenant un polymère thermoplastique, des structures composites comprenant une telle mousse à microcavités et une pluralité de particules contenues dans ces microcavités, de préférence des particules absorbant les fluides aqueux, des procédés de préparation d'une telle mousse et de telles structures, et des articles de consommation jetables comprenant ces mousses et composites. Les caractéristiques d'absorption des fluides aqueux de la mousse et des structures composites les rendent utiles dans la fabrication d'articles de consommation jetables, en particulier d'articles d'hygiène conçus pour absorber rapidement les "salissures" de fluide corporel, éloignant ainsi ces fluides de façon qu'ils ne touchent pas la peau de l'utilisateur de l'article d'hygiène. Les articles utiles comprennent les couches-culottes pour bébés et enfants, les culottes d'incontinence pour adultes, des serviettes hygiéniques pour femmes, les coussins et tapis absorbant l'urine pour animaux, les lingettes de nettoyage domestique, les champs opératoires, et analogue.

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