Glazing unit having an improved vibroacoustic damping property, process for manufacturing such a glazing unit and process for acoustic protection in a vehicle passenger compartment
US7909133B2 · kind B2 · utility
2Cited by
28References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2008 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Oct 9, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B5/205
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A glazing unit with an improved vibroacoustic damping property including at least one sheet of glass and at least one vibroacoustic damping strip that is attached to at least one of the faces of the glass sheet and that includes at least one component made of damping material having a loss factor greater than 0.2. The strip is not joined to any other device on the opposite side from the glass sheet and the component made of damping material has a Young's modulus greater than 800 MPa, at 20° C., for a particular frequency corresponding to the critical frequency of the glazing unit to within plus or minus 30%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.