Bilayer windshield and preformed two-ply sheet for use therein

Details Bilayer windshield and preformed two-ply sheet for use therein Bilayer windshield and preformed two-ply sheet for use therein

1988-08-25

1990-01-02

Van Balen, William J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284233, 4284256, B32B 1710, B32B 2740

Patent

active

048912719

ABSTRACT:
Preformed, two-ply, optical, energy-absorbing, flexible polyurethane sheet including a self-healing surface and a surface which is adhesive under the influence of heat and pressure; bilayer glazing laminates and bilayer automotive safety windshields including said two-ply sheet; said two-ply sheet comprises a self-healing ply and an energy-absorbing adhesive plyurethane ply which is prepared preferably by reactive-casting on a horizontal support and formed preferably from a polyisocyanate monomer including from about 2 to about 10 wt. % of urea groups.

REFERENCES:
patent: 4218500 (1980-08-01), Radisch
patent: 4321296 (1982-03-01), Rougier
patent: 4584229 (1986-04-01), Bourelier et al.
patent: 4643944 (1987-02-01), Agethen et al.
patent: 4671838 (1987-06-01), Bravet et al.
patent: 4784916 (1988-11-01), Bravet et al.

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