Sound attenuating composite articles incorporating scrim material and methods of making same
US6631785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R13/083
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Sound attenuating composite articles for use within vehicles as floor coverings and other interior trim components are provided. A sound attenuating composite article includes a damping layer, decoupler layer, scrim/web layer, and a porous upholstery material sandwiched together. The damping layer has a thickness of less than about 5 mm and is configured to be attached to a surface of a panel of a vehicle (e.g., a sheet metal or polymeric component of a vehicle, such as a floor panel, door panel, etc.) in face-to-face contacting relationship therewith. The decoupler layer has a thickness of less than about 70 mm and is attached to a surface of the damping layer in face-to-face contacting relationship. The scrim/web layer has a thickness of less than or equal to about two millimeters (2 mm). The porous upholstery material (e.g., carpeting) is attached to a surface of the scrim/web layer of material in face-to-face contacting relationship therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.