Acoustic material with liquid repellency
US7500541B2 · kind B2 · utility
12Cited by
74References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Apr 8, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/66
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A nonwoven acoustic insulating material which also provides repellency to water and low surface tension fluids. Also disclosed is a method for attenuating transmitted sound and repelling fluids which includes providing a nonwoven acoustic insulating material, the nonwoven acoustic insulating material including at least one nonwoven web having a low surface tension fluids repellency treatment, and interposing the treated nonwoven acoustic insulating material between a sound generation area and a sound receiving area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.