Patent 10343378 was granted and assigned to Saint-Gobain on July, 2019 by the United States Patent and Trademark Office.
A laminated glazing includes at least one outer glass sheet, an inner glass sheet and a polymeric insert located between the two glass sheets, in which the inner sheet has a thickness of not more than 1.5 mm, the outer glass sheet is a glass sheet of different chemical composition from that of the inner sheet, the difference between the temperatures Tp1 and Tp2 being less than 80° C., the temperature Tp1 being defined as the mean between the upper annealing temperature and the softening point of the outer glass sheet and the temperature Tp2 being defined as the mean between the upper annealing temperature and the softening point of the inner glass sheet.