Preform and method for its fabrication
US6558604B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1999 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Aug 6, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2605/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cast part, for example, for use as an internal coating of a vehicle. The cast part has a bearing layer, which is compressed and made of natural fibers bound together by a binding agent. A decorative layer is disposed on an upper surface of the bearing layer and on a lower surface of the bearing layer, a sealing layer, on which functional elements are molded in the form of fixing clips and reinforcing ribs is disposed. The case part is made according to a process consisting in compressing a natural fiber matting containing a binding agent into the bearing layer having either a plane surface or a contour and, in a second forming step, shaping the decorative material located in a upper half of a forming tool as well as a thermoplastic material applied to a lower half of the forming tool for forming the sealing layer and the functional element formed therefrom. The cast part is highly resistant with undiminished aesthetic and tactile features of the decorative material, is not moisture-sensitive and does not smell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.