Polymer microparticles and production method for the same
US7923517B2 · kind B2 · utility
2Cited by
7References
15Claims
0Family size
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Key dates
| Filing date | Nov 4, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Apr 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for producing polymer particles which includes: forming polymer particles by heterogeneous polymerization of a monomer in a supercritical fluid and/or subcritical fluid, wherein a radical polymerization initiator (I) having in a molecular at least a group having radical-generation capability and a group having affinity for the supercritical fluid and/or subcritical fluid, and a radical polymerization initiator (II) are used in combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.