Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Reexamination Certificate
2008-05-27
2008-05-27
Salvatore, Lynda (Department: 1771)
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
C604S385230, C604S385080, C442S394000
Reexamination Certificate
active
10417457
ABSTRACT:
A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface. One embodiment of the present invention provides a breathable web comprising a microporous film exhibiting an MVTR of at least about 2000 g/m2/24 hr, a dynamic impact value of less than about 10 g/m2, a bubble pressure at least about 45 psi, and an air flow of at least about 2 liters/m2/s.
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PCT Search Report, mailed Nov. 13, 2000, 3 pages.
Anderson Barry Jay
Dobrin George Christopher
Mansfield Todd Leon
Polat Suna
Addington Eric T.
Alexander Richard L.
Kendall Dara M.
Salvatore Lynda
The Procter & Gamble & Company
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