Patent ID: 6926786

Claim:
A process for manufacture of a laminated glazing unit comprising at least two glass substrates assembled by an intermediate film having at least one ply based on a polymer or polymers provided on at least one of its faces with a functional thin layer or a stack of functional thin layers having properties of reflection in infrared, wherein the process includes the following steps: a)—the intermediate film already containing at least the ply provided with the thin layer or the stack of thin layers is cut to dimensions larger than at least one of the two glass substrates, b)—the intermediate film is incised through at least a thickness of the ply provided with the thin layer or the stack of thin layers having properties of reflection in infrared, in such a way as to define at least one peripheral zone or zones of said ply localized between an incision line and an edge of the ply, c)—the intermediate film is assembled between the two glass substrates by adjoining thereto any polymer ply or plies thereof which was or were missing, d)—the peripheral zone or zones of the ply is or are detached by pulling it on them mechanically, e)—the laminated glazing unit is transformed, the steps taking place in the above order.