Crosslinked, porous, polyacrylate beads
US3957741A · kind A · utility
85Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jan 17, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/921
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Uniformly-shaped, porous, round beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05 to 5% by weight of an aqueous soluble polymer such as polyethylene oxide. Cross-linking proceeds at high temperature above about 50.degree.C or at a lower temperature with irradiation. Beads of even shape and even size distribution of less than 2 micron diameter are formed. The beads will find use as adsorbents in chromatography and as markers for studies of cell surface receptors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.