Methods for forming thermal oxidative barrier coatings on organic matrix composite substrates
US7776404B2 · kind B2 · utility
3Cited by
4References
12Claims
0Family size
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Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Jun 17, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2483/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for forming thermal oxidative barrier coatings for organic matrix composites include applying a bond coat having nano-particles dispersed in a polyimide matrix to a hot side surface of a component and overlying the bond coat with a thermal barrier layer comprising a silsesquioxane or an inorganic polymer. The nano-particles may include clay platelets, graphite flakes or a polyhedral oligomeric silsesquioxane. The bond coat may be applied as a liquid. The thermal barrier layer may be applied as a liquid, film, prepreg, molding compound, or a spray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.