Carbon article having an improved primer coating and an improved anti-oxidant coating
US9796638B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 9, 2015 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Nov 11, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2250/0046
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A carbon article shaped as a brake disc, the brake disc being coated with an anti-oxidant coating obtained by applying as a primer coat a composition including orthophosphoric acid, aluminum hydroxide, demineralized water, and a wetting additive; curing the primer coat; applying as a barrier coat a composition including orthophosphoric acid, aluminum hydroxide, demineralized water, colloidal silica, silicon hexaboride, boron, and a wetting additive; and curing the barrier coat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.