Crosslinked, porous, polyacrylate beads
US4046720A · kind A · utility
24Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | May 30, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/905
- 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.