Microparticles having a multimodal pore distribution
US10889696B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jul 9, 2014 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2423/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Microparticles that have a multimodal pore size distribution are provided, Notably, the pore structure of the present invention can be formed without the need for complex techniques and solvent chemistries traditionally employed to form porous microparticles. Instead, the microparticles contain a polymeric material that is formed from a thermoplastic composition, which is simply strained to a certain degree to achieve the desired porous network structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.