Multiblock copolymer films, methods of making same, and uses thereof
US12012492B2 · kind B2 · utility
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41References
20Claims
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Key dates
| Filing date | Aug 29, 2022 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Aug 29, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2353/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer. The surface layer can have at least 1×1014 pores/m2 and a pore size distribution (dmax/dmin)) of less than 3. The bulk layer has an asymmetric structure. The films can be used in filtration applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.