C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 27/12 (2006.01) B32B 17/10 (2006.01)
Patent
CA 2092267
ABSTRACT OF THE DISCLOSURE Safety windowpanes made of laminated glass; processes for their manufacture. A safety windowpane made of laminated glass, of the type comprising two glasses made of annealed, hardened or quenched glass 1, 2 bonded to one another by an insert sheet of synthetic material 3 to the opposite faces of which said glasses are adhesively attached, in which said sheet comprises in said material a line 4 of discontinuity in mechanical strength of relatively small width, said line defining an outline of preopening of a surface area such that after breaking of said glasses 1, 2 and rupture along said outline, it offers a sufficient passage for a human body. The invention also relates to processes for the manufacture of such windowpanes. Figure 3.
de La Rochefoucauld Christian
Deprez Jean-Pierre
Goudreau Gage Dubuc
Vertal Nord Est
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