Process for preparing macroreticular resins, copolymers and products of said process
US4382124A · kind A · utility
122Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1980 |
| Grant date | May 3, 1983 |
| Priority date | — |
| Expiry date | Jun 3, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2357/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing reticular crosslinked copolymer beads by suspension copolymerization in an aqueous medium a polyvinylidene monomer and a monovinyl aromatic hydrocarbon monomer in a liquid precipitant which has a low solubility in the aqueous medium, is a solvent for the monomer mixture and does not appreciably swell the copolymer, the liquid precipitant and said polyvinylidene monomer each being present in an amount exceeding the critical concentration of each needed for phase separation of the copolymer from the monomer phase, and the products produced by said process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.