Process for producing polymer particles with irregular shape by polymerizing a water-soluble polymerizable monomer
US5596056A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1993 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | Oct 7, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The process of the present invention for producing polymer particles with an irregular shape by polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymerizable monomer is characterized in that the system a glycoside compound having such a structure that the hydrogen atom of the hemiacetal bond in the compound has been substituted for a hydrophobic group, or a gluconamide compound as a dispersant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.