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US 9,328,440 B2Granted
Fibers of polymer-wax compositions
AssigneeThe Procter & Gamble Company
InventorsWilliam Maxwell Allen, Jr., Eric Bryan Bond, Isao Noda, Ronald Thomas Gorley, Olaf Erik Alexander Isele
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Abstract
Disposable articles that include fibers formed from compositions comprising thermoplastic polymers and waxes, where the wax is dispersed throughout the thermoplastic polymer. The fibers containing the wax can define at least a portion of a nonwoven and can be utilized in one or more of the following article layers: liquid pervious layer, liquid impervious layer, and absorbent core disposed therebetween.
Claims15
A disposable article comprising:
- a liquid pervious layer;
- a liquid impervious layer;
- an absorbent core disposed between the liquid pervious layer and the liquid impervious layer;
- wherein the liquid pervious layer comprises fibers that are produced by melt spinning a composition comprising an intimate admixture of
- (a) a thermoplastic polymer;
- and
- (b) a wax having a melting point greater than 25° C.,
- (c) wherein the wax is dispersed within the thermoplastic polymer such that the wax has a droplet size of less than 2 μm within the thermoplastic polymer, and
- wherein the fibers are treated with a wetting agent after the fibers are melt spun.
6 more elements
Dependencies are inferred from the claim text.