Protective internal coatings for porous substrates
US11945756B2 · kind B2 · utility
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24References
29Claims
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Key dates
| Filing date | Oct 19, 2020 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Oct 19, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/268
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A material contains open pores in which the channels and pores that are internally coated with at least one layer of phosphorus-containing alumina. Such material is formed by infiltrating a porous material one or more times with a non-colloidal, low-viscosity liquid coating precursor, drying, and curing the coating precursor to form a phosphorus-containing alumina layer within pores of the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.