Duct board with water repellant mat
US7223455B2 · kind B2 · utility
7Cited by
119References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | May 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2189
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A duct board or duct liner comprises: an insulating layer formed from fibrous material bound with a resin binder, an outer facing layer adhered to an outer surface of the insulating layer, and a water repellant mat facing adhered to an interior surface of the insulating layer opposite the outer surface to form a duct board material. The mat facing provides sufficient water repellency to repel a mixture of about 40% isopropanol and about 60% water. The duct board or duct liner material may be formed into a tubular shape capable of conducting air, with the mat facing on the interior of the tubular shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.