Process for producing cross-linked monodispersed polymeric particles
US5412048A · kind A · utility
5Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Jul 26, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Spherical monodispersed polymeric particles are prepared from vinyl monomers and crosslinking polymerizable polyvinyl monomers. More particularly, a novel process for producing spherical monodispersed gel particles that are about 1-6 .mu.m in size and contain at least about 0.5 to about 3 weight percent (based on polymerizable vinyl monomer/vinyl polymer) of a polymerizable polyvinyl monomer is disclosed. The process comprises the steps of combining an isoalkanol solvent, a polymerizable vinyl monomer and a crosslinking polymerizable polyvinyl monomer under timed and monitored conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.