Porous resin particle and method for producing the same, and structure
US10266666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Oct 26, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K7/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for producing a porous resin particle including a mesoporous structure portion and an outer shell portion integrally formed on a surface of the mesoporous structure portion includes, in a state that an oil-phase liquid, in which a polymerizable monomer and an oil-soluble polymerization initiator having a polymerization initiating ability to the polymerizable monomer are dissolved or dispersed in a hydrophobic solvent, is dispersed as oil droplets in an aqueous medium containing a water-soluble polymerization initiator having a polymerization initiating ability to the polymerizable monomer, generating a plurality of mesopores inside the porous resin particle by forming a solid medium, by polymerizing the polymerizable monomer by acting the oil-soluble polymerization initiator and the water-soluble polymerization initiator at the same time on the polymerizable monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.