Nonwoven multilayered fibrous batts and multi-density molded articles made with same and processes of making thereof
US7928025B2 · kind B2 · utility
45Cited by
29References
34Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 1, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Feb 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/688
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Thermal compression moldable nonwoven multilayered fibrous batts having substantially uniform density are provided, which are useful, for example, for fabrication of multi-density molded parts, such as multi-density molded vehicle liners. The nonwoven multilayered fibrous batts of uniform density comprising needle-punched first and second (and optionally third and/or fourth) fibrous batt layers formed with different fiber blends, wherein the multilayered batt can be molded into acoustical parts having multi-densities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.