Pilkington Group Limited

Pilkington Plc

Neil Winstanley

Gustavo Benedetto

Massimo Michetti

Neil John Durbin

Paul Arthur Holmes

Marco Ronci

Malcolm Francis Green

Philip Harold Corkhill

A laminated glazing comprising first and second sheets of glass joined by an interlayer structure is described. The second sheet of glass has a first edge surface in an upper region of the laminated glazing. The first edge surface of the second sheet of glass is configured to comprise at least one region between first and second edges of the second sheet of glass such that in the at least one region the shortest distance along a straight line on the first edge surface of the second sheet of glass connecting a first point on the first edge of the second sheet of glass to a second point on the second edge of the second sheet of glass is at least 1.7 times the thickness of the second sheet of glass. A method of making the laminated glazing is also described.

Laminated glazing

A laminated glazing comprising first and second sheets of glass joined together by an interlayer structure comprising at least first and second layers of adhesive interlayer material with a support sheet therebetween is disclosed. The laminated glazing is arranged such that the first layer of adhesive interlayer material is between the first sheet of glass and the support sheet, the second layer of adhesive interlayer material is between the second sheet of glass and the support sheet support material and at least a portion of the second major surface of the first sheet of glazing material faces the first major surface of the second sheet of glazing material. In the event of breakage of the first sheet of glass, the second layer of adhesive interlayer material remains attached to the support sheet thereby keeping the second glass sheet from becoming detached from the laminated glazing.

An intrusion resistant laminated glazing, suitable for automotive use, comprises an impact resistant ply of rigid thermoplastic polyurethane sensitive to ultra-violet radiation and, outside said ply, an ultra-violet absorbing or reflecting ply. The ultra-violet absorbing ply may be of thermoplastic polyurethane interlayer material which serves to bond the rigid thermoplastic polyurethane ply to outer glass plies. By using interlayer materials of low modulus to bond the rigid thermoplastic ply to outer glass plies, a product with good impact resistance and intrusion resistance is achieved.

Laminated glazings

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St. Helens, United Kingdom

Neil Winstanley