Back to results
US 5,688,580 AGranted
Interior material for tunnels and tunnel interior construction
AssigneeNisshin Chemical Industry Co., Ltd.
InventorMasafumi Fukumoto
Life of this patent
Estimating the term…
Abstract
An element for lining the interior surface of a tunnel, which comprises a composite panel in which a fibrous layer is laminated over a hard substrate, and a fluoropolymer surface layer is laminated over said fibrous glass layer.
Claims11
An element, which comprises a composite panel in which a fibrous glass material is laminated over a hard substrate, and a fluoropolymer surface layer is laminated over said fibrous glass material.
Dependencies are inferred from the claim text.