Process for preparing polyurethane carpet backings based on high equivalent weight polyols
US4853054A · kind A · utility
56Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane-backed textiles are prepared from a polyurethane-forming composition employing a polyether polyol having an equivalent weight of at least about 1000, a specified functionality and an internal poly(ethylene oxide) block or a terminal ethylene oxide end cap of at least about 15% by weight. The use of these polyether polyols provides a particularly desirable combination of processing and physical characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.