Porous devices and processes for producing same
US11298217B2 · kind B2 · utility
0Cited by
94References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2371/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices and methods for making a polymer with a porous layer from a solid piece of polymer are disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.