Floor covering tile
US5059474A · kind A · utility
32Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Jul 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A floor covering tile is a lamination of several layers. A surface layer is a vinyl chloride resin with a small filler compounding ratio; an intermediate layer is a thermoplastic resin having a large filler compounding ratio, a lower layer is a thermoplastic resin having a large filler compounding ratio; and a glass fiber layer is in between the intermediate and lower layers. The lamination is gently curved to have a curved bottom surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.