Nonwoven material for acoustic insulation, and process for manufacture
US7918313B2 · kind B2 · utility
124Cited by
83References
83Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Aug 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/666
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved acoustically and thermally insulating composite material suitable for use in structures such as buildings, appliances, and the interior passenger compartments and exterior components of automotive vehicles, comprising at least one airlaid fibrous layer of controlled density and composition and incorporating suitable binding agents and additives as needed to meet expectations for noise abatement, fire, and mildew resistance. Separately, an airlaid structure which provides a reduced, controlled airflow therethrough useful for acoustic insulation is provided, and which includes a woven or nonwoven scrim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.