Water soluble barrier coatings for washout tooling for a composite layup
US11524427B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Apr 16, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A washout tooling for a composite layup is provided. The washout tooling comprises a casting mold having an exterior surface. The casting mold comprises a particulate material and a water-soluble binder. The casting mold is adapted to break down in the presence of an aqueous solution. The washout tooling further comprises a water-soluble coating layer overlying the exterior surface. The water-soluble coating layer is adapted to break down in the presence of an aqueous solution. The washout tooling further comprises a curable composite layer overlying the water-soluble coating layer. The water-soluble coating layer minimizes contact between the particulate material and the curable composite layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.