Carpet tile and method of preparing same
US5030497A · kind A · utility
30Cited by
9References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1989 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Sep 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31815
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A carpet tile of improved dimensional stability having a hot melt composition backing layer and which has a secondary backing of a glass fiber tissue sheet material directly adjacent to a non-woven fibrous sheet material, such as a polypropylene sheet material. The backing layer penetrates the glass fiber tissue sheet material and partially penetrates and bonds the fibrous sheet material which forms the exterior surface of the secondary backing. The method of producing the carpet tile includes forcing the liquid, hot melt composition into the secondary backing sheet employing a roll-over-roll applicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.