Transparent glass/polymer composite
AssigneeSchott AG
InventorsKurt Schaupert, Thilo Hinrich Zachau, Frieder Kropfgans
Life of this patent
Estimating the term…
Abstract
A transparent device for protection from an action of shock, projectiles, fragments or shock waves is provided. The device is a laminate having brittle-fracture, transparent materials that are joined together by way of transparent intermediate layers of organic polymers. The laminate is closed on the protective side facing away from the side of action by a fragment-protective layer that is formed as a transparent polymer layer in a thickness of 0.5 mm to 12 mm. The laminate has facing the side of action a chemically prestressed, brittle-fracture panel that is at a distance of 3 mm to 20 mm from the side of action.
Claims17
1-7. (canceled)
A transparent device for protection from an action of shock, projectiles, fragments or shock waves, comprising:
- a laminate having four brittle-fracture, transparent panels that are joined together by transparent intermediate layers of casting resin or polymer films, the laminate having a total thickness of at least 60 mm and the laminate being closed, on a protective side facing away from a side of action, by a fragment-protective layer having a thickness of 0.5 mm to 12 mm, which is formed as a transparent polymer layer, wherein, in the laminate, one of the four brittle-fracture, transparent panels comprises a first, chemically prestressed, brittle-fracture panel that has a surface that is disposed at a distance of 6 mm to 20 mm from the side of action;
- and
- a polymer layer of a thickness between 2 mm and 15 mm is disposed via a polyurethane layer between two of the four brittle-fracture, transparent panels.
A transparent device for protection from an action of shock, projectiles, fragments or shock waves, comprising:
- a first glass plate at a side of action;
- a chemically prestressed, brittle-fracture panel joined to the first panel remote from the side of action by a first intermediate layer;
- a second glass plate joined to the prestressed panel remote from the side of action by a second intermediate layer;
- a polymer plate joined to the second glass plate remote from the side of action by a third intermediate layer;
- a third glass plate joined to the polymer plate remote from the side of action by a fourth intermediate layer;
- and
- a polycarbonate fragment-protection layer at a safe side, the fragment-protection layer being joined to the fourth glass plate by a fifth intermediate layer.
Dependencies are inferred from the claim text.