Carpet for vehicles
US7563498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2007 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23993
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
According to one aspect of a preferred embodiment of the present invention, a carpet for vehicles comprises a surface skin layer 2 and a sound absorption layer 3 made of a nonwoven fabric integrally bonded to the surface skin layer 2 via an adhesive resin layer 4. The adhesive resin layer 4 is constituted by an air permeable resin layer formed by melting thermoplastic resin powder having a particle diameter of not smaller than 320 μm but not larger than 1,000 μm. An adhered amount of the thermoplastic resin powder is 180 to 500 g/m2. Air permeability of the entire carpet in a thickness direction thereof is 10 to 26 cm3/cm2·sec. With this structure, excellent sound absorption performance can be exerted against noise entering into an inside space of a vehicle from the above side, such as, the roof, doors, or windows, as well as noise entering from the lower side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.