Formation and properties of cellular foam fibrous material
US10875979B2 · kind B2 · utility
11Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Mar 16, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A foaming process for converting fibrous material into a cellular foam structure includes mixing fibrous material and a solvent-based binding agent to form a mixture; saturating the mixture with a pressurized gas to form a gas-saturated mixture; expanding the gas-saturated mixture by reducing the pressure of the pressurized gas to form an expanded mixture with voids in the fibrous material; and curing the expanded mixture to set the fibrous material and drive off the solvent to provide a stable network of fibrous material having cushioning properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.