Insoluble porous polymeric-phenolic complexes
US3954682A · kind A · utility
25Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1974 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Jan 25, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/921
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Phenolic complexes of water-insoluble but water-swellable crosslinked N-vinyllactam or N-alkyl-N-vinylamide polymers in the form of porous beads or granules and a process of preparing same. The complexes are particularly suited for use in situations wherein phenolic materials in limited quantities are desired such as, for example, in canisters or columns which are used to treat liquids or water. The novel complexes are prepared by adsorbing a phenolic material onto the porous granular or porous bead-like crosslinked N-vinyllactam or N-alkyl-N-vinylamide polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.