Method for preparing macroporous polymethyl methacrylate
US9688832B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Mar 18, 2014 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Mar 18, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2471/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for preparing macroporous polymethyl methacrylate (PMMA) particles includes the steps of: (a) dissolving a polymethyl methacrylate polymer and Pluronic polymer into an organic solvent; (b) introducing the mixed solution of step (a) to an aqueous solution containing a surfactant to carry out emulsion polymerization; (c) heating the resultant product of step (b) to allow evaporation of the organic solvent; and (d) washing and drying the porous polymethyl methacrylate particles remaining after the evaporation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.