Polyurethane thermoplastic elastomer membrane for seat suspension
US5775779A · kind A · utility
27Cited by
21References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Mar 27, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/282
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat suspension membrane is provided which consists substantially of a biaxially oriented film of a polyurethane thermoplastic elastomer composition, which composition is characterized by substantially linear polymer molecules containing alternate rigid segments of diisocyanate short chain diol addition reaction products and flexible segments of relatively high molecular weight polyether diol or polyester diol segments and which is produced from a relatively soft film composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.