Protein specific polymeric immunomicrospheres
US4224198A · kind A · utility
16Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1978 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | May 26, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/827
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Small, round, bio-compatible microspheres capable of covalently bonding proteins and having a uniform diameter below about 3500 A are prepared by substantially instantaneously initiating polymerization of an aqueous emulsion containing no more than 35% total monomer including an acrylic monomer substituted with a covalently bondable group such as hydroxyl, amino or carboxyl and a minor amount of a cross-linking agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.