Carpet padding comprising cover film, and prime and rebond foam layers
US5045389A · kind A · utility
48Cited by
7References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | May 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31554
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved carpet padding comprises a layer of rebonded flexible polyurethane foam, a relatively thin intermediate layer of flexible prime polyurethane foam, and a top layer of polymer film. The layers are laminated together by either a flame or liquid adhesive method. In a preferred embodiment, the bottom layer of rebonded foam is from two to eight times as thick as the intermediate layer of prime foam, and the top layer of polymer film is a metallized polyester embossed with a uniform pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.