Aggregate-based mandrels and compositions for producing same
US12012511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2018 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Nov 9, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Compositions for use in manufacturing a water-soluble tooling material are disclosed. The compositions include an organic binder material that is water-soluble, a melt processing aid capable of reducing the glass transition temperature of the organic binder, and an aggregate material. A method for forming a composite structure is similarly disclosed and involves production of a mandrel by depositing a particulate mixture, including the aggregate material, the binder, and the melt processing aid, into a mold and removing the mandrel from the mold. Once finished, the mandrel can be used in manufacturing polymer and/or composite components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.