Cushion and method of manufacturing the same
US4902542A · kind A · utility
7Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1987 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jul 16, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2918
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cushion has a main body formed of fibers including organic synthetic fibers which are stereoscopically intertwined. A cured polyurethane resion covers surfaces of the fibers and binds the fibers at their intersections. The cured polyurethane resin is obtained by curing a polyurethane prepolymer with water or steam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.