C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
18/1032, 154/108
C08L 75/06 (2006.01) B32B 17/10 (2006.01) C03C 27/10 (2006.01)
Patent
CA 1143497
ABSTRACT An integument which contributes to the maintenance of surface integrity is disclosed, particularly a sheet for use in preparing laminates, such as vehicle windshields, in which an energy absorbing ply, for example, a ply of poly(vinyl) butyral), is sandwiched between two glass plies, the sheet of this invention being applied to an exposed surface of one of the glass plies and having one surface layer comprising a thermoplastic polyurethane capable of adhering to a glass or plastic substrate and the other surface layer comprising a thermoset polyurethane having anti-lacerative, self-healing and anti-ablative properties; there is further disclosed the manufacture and application of such a sheet as a ply facing the interior of a vehicle, thereby forming a windshield the inwardly exposed surface of which comprises a thermoset polyurethane which protects the vehicle occupants from facial laceration caused by windshield impact and which has self- healing properties.
398295
Agethen Heinrich
Gresenhues Paul
Jandeleit Otto
Raedisch Helmer
Schaefer Wolfgang
Macrae & Co.
Saint-Gobain Industries
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