Method of forming a moulded panel
US5082609A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Oct 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A panel having a finish face, a substrate and a lamina of moulded polyurethane between the two is formed in a single closable die having two portions, the first stage of the operation being to spray a release agent onto a face forming surface of one die portion, then spray an aliphatic polyurethane colored film onto the release agent, spray an elastomer polyurethane over that film and allow the elastomer to at least partially set, lay a sheet of reinforcing fibre which can for example be a continuous filament glass over the at least partially set elastomer, dispense the liquid ingredients of a rigid foam polyurethane over the glass, close to the mould, and remove the product after setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.