Headliners having improved sound-absorbing characteristics
US4851283A · kind A · utility
60Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Dec 5, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/652
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Thermoformable laminates, suitable for use as automobile headliners, comprising a layer of non-woven fabric (acoustical pad bonded to one side of a foamed polymer sheet are disclosed. The non-woven fabric comprises a certain blend of staple fibers which provide an optimum balance of characteristics including cost and improved sound absorption characteristics which are important headliner characteristics, especially, for compact and subcompact automobile uses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.