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Apertured Webs Having Permanent Hydrophilicity And Absorbent Articles Using Such Webs



Patent #: 6,461,716

Inventor(s): Yann-Per Lee, Hugh O’Donnell, Andrew Wnuk, Todd Mansfield, Gary LaVon and Fernando Benvegnu

Company: Procter & Gamble

Filed: 1999-06-24

Issued: 2002-10-08

Description:
An apertured formed film web with a first and second surface that is suitable for use as a topsheet of an absorbent article has been patented. The web consists of a first and second layer with both layers comprising a hydrophilic block copolymer of a polyether and another polymer selected from a group consisting of polyester, polyamide and polyurethane. The other first and second layers comprise a polymeric hydrophobic layer and form a film web containing a plurality of micro- and macro-apertures having the hydrophilic block copolymers on inside surfaces of the apertures and the apertures form a plurality of fluid passage ways placing the first and second surfaces in fluid communication with one another.

View on USPTO