Optically black pliable foils
US4894125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | May 20, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S126/908
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a composite ductile metal foil having an optically black surface comprising a metal foil substrate having a thickness effective for shaping and reshaping; a black chromium surface applied to at least one side of said substrate by electrodeposition; said surface having a solar absorptivity of at least about 0.95; an emissivity in the range of about 0.4 to about 0.8; and an adhesion strength effective to resist spalling when a two inch by two inch sample of said composite foil is subjected to repeated deformation around a one mil diameter mandrel. In a preferred embodiment of the present invention, the substrate is molybdenum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.