Moldable heat shield
US7521386B2 · kind B2 · utility
16Cited by
88References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2004 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | May 26, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/697
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A moldable heat shield with a needled nonwoven core layer and needled nonwoven shell layers. The core layer has a blend polyester staple fibers and low melt polyester staple fibers. The shell layers have a blend of staple fibers of partially oxidized polyacrylonitrile, and staple fibers of polyester, and staple fibers of a low melt polyester. The layers are needled together such that fibers from the core layer do not reach the outer surfaces of the shell layers. The shell layers are calendared such that an outer surface layer is formed thereon, which provides the moldable heat shield with a water and oil resistant surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.