Reduced density thermoplastics
US11661491B2 · kind B2 · utility
2Cited by
19References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Jun 14, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The instant application discloses, among other things, ways to manufacture reduced density thermoplastics. A rapid foaming process which may create a polymer product by saturating thermoplastic sheet or preforms, heating, and then forming into final shape, is described. The polymer product may include an integral solid skin. This method may be utilized with any thermoplastic. The material handling, saturation methods, and end products are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.