Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1991-05-09
1993-06-08
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
152291, 152444, 428136, 428181, 428286, 428287, 4283044, 4283166, 4283171, 4283177, A47L 1320, B32B 326
Patent
active
052177874
ABSTRACT:
Material multi-faceted as to its advantageous properties and highly versatile in use and application comprises a very light, relatively thin, sheet-like structure, a layered composite of cellular and non-woven materials. Said structure is formed of layered sheets, bonded to one another, including a thin sheet of a cellular material the face(s) of which have a very thin sheet-like overlay of a non-woven permeable reinforcing material such as, preferably, rayon or nylon. The body of the cellular sheet material, preferably of plastic such as polyurethane, polyester or polyether, is characterized by innumerable extremely small, relatively minute pockets having extremely thin elastic wall portions through which fluid may readily pass to said pockets to store therein in amounts the volume of which may be a significant multiple of that originally defined by said wall portions. Exmbodiments of such sheet-like structure are formed and conditioned to readily filter, pass or store fluid and substantially fully release fluid stored therein when under the influence of a moderate application of pressure. When the fluid is a liquid the extent and speed of its release insures a quick drying of this material. An illustrative demonstration of the invention comprises a short length of said sheet-like structure having multiple slits portions of which define lines upon which it can be quickly folded on itself and produce a layered mop which is extremely light in weight and even more effective in application to its intended use than the original form of said sheet-like structure.
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Graham R. William
Muir H. Stanley
The Thomas Monahan Co.
Van Balen William J.
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