Floor covering underlayment
US5501895A · kind A · utility
38Cited by
11References
11Claims
0Family size
Inventors
Key dates
| Filing date | Jul 23, 1992 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Jul 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A flooring installation is characterized by installing an underlayment between the flooring material and the subfloor. The underlayment includes (from the subfloor up) a foamed polymeric layer and a glass fiber mat. The foamed polymer interpenetrates at least the lower portion of the glass mat. The upper portion of the glass fiber mat is preferably unsaturated. The glass mat may have an acrylic latex tie coat opposite the foamed polymer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.