Process for manufacturing a laminated glazing unit and laminated glazing unit
US8997326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Dec 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
According to this process for manufacturing a laminated glazing unit so that it withstands predetermined stresses, a reference laminated glazing unit is identified that withstands the predetermined stresses and that comprises at least one substrate and one interlayer having the same chemical compositions as those of the laminated glazing unit to be manufactured; the tear strength (Jc-ref) of the interlayer of the reference laminated glazing unit, and also the interlayer thickness (ei-ref) and the substrate thickness (eg-ref) of the reference laminated glazing unit are then determined; then, using a graph (C4) representative of the minimum interlayer tear strength (Jc-min) required so that any laminated glazing unit, comprising at least one substrate and one interlayer having the same chemical compositions as those of the laminated glazing unit to be manufactured, withstands the predetermined stresses, as a function of the interlayer thickness (ei) and/or of the substrate thickness (eg), a combination of optimum values (ei-opt, eg-opt) of the interlayer thickness and of the substrate thickness is deduced; the laminated glazing unit is then sized with an interlayer thickness (ei-dim)…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.