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US 5,914,184 AGranted
Breathable laminate including filled film and continuous film
AssigneeKimberly-Clark Worldwide, Inc.
InventorMichael T. Morman
Life of this patent
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Abstract
A breathable multi-layer film laminate including microporous filled film bonded to continuous film. A support layer such as a fibrous web can be adhered to the film laminate on one or both surfaces.
Claims21
A breathable, oriented multi-layer film laminate comprising:
- a filled film layer including a polymeric resin and a filler in a filler amount of at least about 10 percent by volume of said polymeric resin, said filled film having a water vapor transmission value of at least about 300 g/m.sup.2 -24 hours;
- and
- at least one continuous film layer bonded to said filled film layer, wherein said continuous film layer is an elongatable resin,
- and further wherein said laminate is oriented after formation of said laminate such that said continuous film layer remains hole-free in said laminate and said laminate exhibits a re-stretched water vapor transmission rate of at least about 200 g/m.sup.2 -24 hours.
1 more element
A medical garment comprising a breathable, oriented multi-layer laminate and at least one support layer, said laminate comprising:
- a filled film layer including a polymeric resin and a filler in a filler amount of at least about 10 percent by volume of said polymeric resin, said filled film having a water vapor transmission value of at least about 450 g/m.sup.2 -24 hrs;
- at least one continuous film layer bonded to said filled film layer, wherein said continuous film layer is an elastomeric resin, said continuous film layer being water vapor permeable and impermeable to odor causing molecules;
- wherein the laminate is oriented after formation of the laminate such that said continuous film layer remains hole-free and said laminate exhibits a restretched water vapor transmission rate of at least about 200 g/m.sup.2 -24 hrs.
Dependencies are inferred from the claim text.