Patent · US Expired

Structural panel

US4759964A · kind A · utility

30Cited by

4References

9Claims

0Family size

Assignee

FISCHER GESELLSCHAFT GMBH · AT

Inventors

Josef Fischer · Altheim, AT
Walter Stephan · St. Martin, AT

Key dates

Filing date	Sep 9, 1986
Grant date	Jul 26, 1988
Priority date	—
Expiry date	Sep 9, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/253
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A structural panel in the form of a sandwich construction, comprises a core and at least one cover layer on at least one external surface of the core. Said cover layer itself has on its external surface at least a first layer of fibrous material and has on its internal surface at least a second layer having a high melting point and a high combustion temperature and also being gas-tight, thereby preventing hot gases from passing through the layer and then burning the layer disposed therebelow.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.