Multilayer erosion resistant protective films
US9669601B2 · kind B2 · utility
4Cited by
10References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Sep 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24983
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Multilayer polymeric films which may be useful for protecting the leading edges of aircraft from rain and sand erosion are presented. Typical surface protection films comprising two or more layers of a first material alternating with one or more layers of a second material, wherein the first and second materials are different materials, wherein the first and second materials comprise first and second polymers, wherein the first and second materials have a first and second Shore hardness, and wherein the first Shore hardness is greater than the second Shore hardness by more than 5 A or more typically more than 10 A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.