Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1994-11-03
1998-06-09
Weiss, John G.
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
428132, 428138, 5043851, A61F 1315, B32B 310
Patent
active
057626430
ABSTRACT:
A process for the manufacture of a vapor permeable, liquid impermeable composite material comprising a three-dimensional apertured substrate having a vapor permeable, liquid impermeable coating material thereon, the substantially liquid impervious composite material, and an apparatus for making the composite material are disclosed. Successive portions of a continuous sheet of an apertured substrate are passed into contact with a continuous moving perforated member. The coating material is supplied onto the substrate. The coated substrate is subjected to a vacuum which causes the coating material to flow onto the substrate material and in certain embodiments, at least partially into the apertures in the substrate. The vacuum is maintained for a period of time sufficient for the coating material to adhere to the substrate. The coated portions of the substrate are continuously removed from the moving member.
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Chang Peter I.
McBride Robert K.
Ray Carl D.
Thomas Paul E.
Ruhl Dennis
Tredegar Industries Inc.
Weiss John G.
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