Formable metal-plastic-metal structural laminates
US4313996A · kind A · utility
69Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1979 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | May 21, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31696
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal-plastic-metal structural laminate which can be formed into various useful articles having compound curves using conventional metal forming techniques. The laminate comprises two metal skin layers and a centrally disposed polymer layer comprising a core layer, and optionally first and second adhesive layers. Each metal skin layer is 2 to 20 mils, the ratio of the core thickness to skin thickness is less than 9:1 and the total laminate thickness is 5 to 65 mils. The laminate can be bent to 90.degree. to a critical radius, the distance between the pivot point and the inner skin surface of the laminate, without metal rupture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.