Structural insulating panel and method of making the panel
US4687702A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1986 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Jun 20, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A structural panel having superior insulating properties which comprises a sheet of polyimide foam material having a metal layer on at least one surface, the metal layer being diffused into the foam structure, providing a superior metal-to-foam bond. The polyimide foam has excellent insulating and structural properties and is highly resistant to high temperatures and open flames. The metal layer adds considerable structural strength, since the diffusion of metal into the foam produces a three-dimensional metal structure rather than the usual planar surface film. The metal layer is applied to the foam sheet by chemical vapor deposition under conditions which improve the diffusion of the metal into the foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.