Low viscosity thermoplastic compositions for structures with...

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 5/00 (2006.01) A41D 19/00 (2006.01) A41D 31/00 (2006.01) A41D 31/02 (2006.01) A61L 15/00 (2006.01) A61L 15/22 (2006.01) A61L 15/42 (2006.01) B32B 27/06 (2006.01) C08J 5/18 (2006.01)

Patent

CA 2332917

The present invention relates to thermoplastic compositions for making a liquid impermeable moisture vapour permeable layer by coating the composition onto a substrate. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable hydrophilic plasticisers that also enhance the moisture vapour permeability of films or layers made from the thermoplastic compositions. The layers made from the termoplastic compositions of the present invention can find a variety of applications wherein moisture vapour permeability is desirable, such as within absorbent articles for example diapers, sanitary napkins, panty liners and incontinence products, and also protective bedding covers, protective clothing and the like.

L'invention concerne des compositions thermoplastiques destinées à la fabrication par couchage de la composition sur un substrat d'une couche perméable à la vapeur d'humidité mais imperméable aux liquides. Les compositions thermoplastiques comprennent des polymères thermoplastiques préférés et des plastifiants hydrophiles appropriés qui augmentent également la perméabilité à la vapeur d'humidité des films et couches fabriqués à partir de ces compositions thermoplastiques. Les couches fabriquées à partir des compositions thermoplastiques de cette invention peuvent avoir un large éventail d'applications pour lesquelles on cherche à obtenir la perméabilité à la vapeur d'humidité, par exemple, dans des articles absorbants tels que couches de bébé, doublures de culotte et produits contre l'incontinence ainsi que des couvertures protectrices de lit, vêtement protecteurs et similaires.

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