US 11,718,551 B2
Method for manufacturing flush vehicle glazing
Mario Arturo Mannheim Astete, Lima (DE); and Jean Marie Le Ny, Baesweiler (DE)
Assigned to AGP America S.A., Panama (PA)
Appl. No. 17/256,593
Filed by AGP America S.A., Ciudad de Panama (PA)
PCT Filed Jun. 28, 2019, PCT No. PCT/IB2019/055535
§ 371(c)(1), (2) Date Dec. 28, 2020,
PCT Pub. No. WO2020/003251, PCT Pub. Date Jan. 2, 2020.
Claims priority of provisional application 62/692,764, filed on Jun. 30, 2018.
Prior Publication US 2021/0300811 A1, Sep. 30, 2021
Int. Cl. C03B 33/08 (2006.01); B60J 1/00 (2006.01); B60J 1/02 (2006.01); C03B 23/025 (2006.01); C03B 23/03 (2006.01)
CPC C03B 33/082 (2013.01) [B60J 1/001 (2013.01); B60J 1/02 (2013.01); C03B 23/0252 (2013.01); C03B 23/03 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of manufacturing a flush vehicle glazing, comprising the steps of:
providing a vehicle glass sheet which comprises at least two adjacent sections of a vehicle glazing area;
heating the vehicle glass sheet at a predetermined temperature T1 for a predetermined period of time t3 for bending the vehicle glass sheet by a bending process, wherein the temperature T1 ranges from about a temperature at which the viscosity of the vehicle glass sheet is 1013.6 Pa·s to a temperature at which the viscosity of the vehicle glass sheet is 109 Pa·s and the time t3 is enough to impart a selected permanent curvature to the vehicle glass sheet;
cutting the bent vehicle glass sheet in said at least two adjacent sections of the vehicle glazing area along a cut line, wherein the cutting step is conducted inside a furnace, while the cut line of the bent vehicle glass sheet stands at temperature T2, wherein the temperature T2 ranges from about a temperature at which the viscosity of the cut line of the bent vehicle glass sheet is 1012.4 Pa·s to a temperature at which the viscosity of the cut line of the bent vehicle glass sheet is 109 Pa·s;
cooling the vehicle glass sheet after cutting.