METHOD OF PRODUCING THERMOPLASTIC COMPOSITE FILM Russian patent published in 2020 - IPC B32B17/10 G02B27/01 

FIELD: chemistry.

SUBSTANCE: invention relates to glazing and relates to a thermoplastic composite film suitable for a multilayer glazing panel. Method of producing a thermoplastic composite film, which comprises at least one predetermined area, which is provided for a camera window or a HUD region (display area of the instrument panel on the windshield), and which has variable wedge angle, the method comprising steps of: providing a first thermoplastic film, providing a second thermoplastic film with a variable wedge angle, wherein the three-dimensional shape of the second thermoplastic film is obtained by moulding on a mould, and connecting to each other the first thermoplastic film and the second thermoplastic film, wherein steps of producing second thermoplastic film and connection of first thermoplastic film and second thermoplastic film are performed simultaneously.

EFFECT: invention provides manufacturability of thermoplastic film with at least one area with variable wedge angle.

7 cl, 8 dwg