Polyurethane backed carpet
US4296159A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1980 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Sep 29, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23979
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Tufted or woven article having a unitary backing is prepared by applying to the underside of a tufted or woven textile article, a polyurethane-forming composition comprising PA0 (A) a relatively high molecular weight polyether polyol; PA0 (B) a relatively low molecular weight polyol; PA0 (C) an organic polyisocyanate or polyisothiocyanate; PA0 (D) an inorganic filler component. The present invention describes a carpet comprising (I) a primary backing; (II) a yarn tufted or woven through said primary backing thereby creating a yarn bundle on the underside of the resultant tufted or woven textile article and (III) a polyurethane composition applied to the underside thereby encapsulating the yarn bundles and adhering the yarn bundles to the primary backing; said polyurethane composition comprising the catalyzed reaction product of the composition described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.