Cellulose foams for high performance insulations
US11725091B2 · kind B2 · utility
2Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Oct 11, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2429/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Environmentally friendly, sustainable, and high-performance ultralight composite foams are disclosed. The composite foams are prepared from cellulose nanomaterial, polymeric material, and a crosslinking agent. The fabrication process is simple and uses only water. The composite foams exhibit an elastic strain exceeding the values reported for known nanocellulose-based foams with no reinforcement. The foams exhibit a thermal conductivity superior to that of traditional insulating materials and retain structural integrity after burning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.