Composite sheet material and mop embodiment thereof
US5217787A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1991 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | May 9, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/651
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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 thi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.