Invention Application
- Patent Title: LAMINATED GLAZING WITH IMPROVED RESISTANCE TO RELATIVELY DISCRETE IMPACT TYPES
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Application No.: US17778279Application Date: 2020-11-18
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Publication No.: US20220388280A1Publication Date: 2022-12-08
- Inventor: Thomas TONDU
- Applicant: SAINT-GOBAIN GLASS FRANCE
- Applicant Address: FR COURBEVOIE
- Assignee: SAINT-GOBAIN GLASS FRANCE
- Current Assignee: SAINT-GOBAIN GLASS FRANCE
- Current Assignee Address: FR COURBEVOIE
- Priority: FRFR1912943 20191120
- International Application: PCT/FR2020/052122 WO 20201118
- Main IPC: B32B17/10
- IPC: B32B17/10 ; B32B7/022 ; B32B7/023 ; B32B7/05 ; B32B7/12

Abstract:
A laminated glazing includes a structural transparent substrate bonded to a glass sheet of 0.5 to 4 mm, intended to constitute an outer surface of the laminated glazing, by an adhesive interlayer of 4 to 10 mm, which successively includes 0.25 to 2.5 mm of a flexible first polymer material having a relaxation modulus at most equal to 2 GPa for relaxation times at least equal to 10 min, at temperatures at least equal to −40° C., in contact with the glass sheet, then a stiff second polymer material having a relaxation modulus at least equal to 4 GPa, for time constants at most equal to 0.1 millisecond and temperatures at most equal to 40° C.
Public/Granted literature
- US12059869B2 Laminated glazing with improved resistance to relatively discrete impact types Public/Granted day:2024-08-13
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