Invention Grant
- Patent Title: Laminated glazing comprising a peripheral stepped element made of polymer material having a required maximum permeability to water vapor
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Application No.: US17296409Application Date: 2019-12-03
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Publication No.: US12030298B2Publication Date: 2024-07-09
- Inventor: Thomas Tondu , Didier Tellier
- 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
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Priority: FR 72291 2018.12.04
- International Application: PCT/FR2019/052906 2019.12.03
- International Announcement: WO2020/115425A 2020.06.11
- Date entered country: 2021-05-24
- Main IPC: B32B15/04
- IPC: B32B15/04 ; B32B3/02 ; B32B7/12 ; B32B17/06 ; B32B17/10

Abstract:
Laminated glazing includes a first glass sheet constituting an external face of the glazing, connected to a second glass sheet by a first interlayer adhesive layer, the edge of the first glass sheet being set back with respect to that of the second, a peripheral part of the free surface of the first glass sheet, its edge face, that of the first interlayer adhesive layer and a part of the surface of the second glass sheet extending beyond the first describing a continuous stepped contour which is covered, with interposition of adhesive, with a stepped element made of polymer material which can contain reinforcing fillers, which exhibits a permeability to water vapor at most equal to 5 g/m2/day.
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