Or relating to three dimensional mouldings
US11213979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Aug 5, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24995
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a blank for compression moulding a part in a compression mould comprising one or more moulding recesses, said blank comprising a body formed from a first moulding compound comprising a fibrous reinforcement material and a thermo-curable resin material, and a region located on the surface of the body formed from a second moulding compound; said second moulding compound comprising a fibrous reinforcement material and a thermo-curable resin material, and exhibiting increased flow at one or more temperatures between 20° C. and the cured Tg of the first moulding compound compared to the flow of the first moulding compound at the same temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.