Structural foam molding method using continuous fiber composites, and parts formed therefrom
US11584049B2 · kind B2 · utility
1Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Oct 5, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0872
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making structural foam parts having continuous aligned fibers includes placing an assemblage of fiber-bundle-based preforms in an injection mold, creating a melt flow of resin and, optionally, short, loose fiber, and adding foaming agent to the melt flow. When the foaming agent/melt flow mixture is introduced into the injection mold, the foaming agent foams. The assemblage is structured and positioned so that fibers therefrom adopt a desired alignment and position in the final part. Structural foam fills the remainder of the volume of the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.