Water-insoluble hydrophilic copolymers used as carriers for medicaments and pesticides
US4177056A · kind A · utility
23Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Jan 25, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2210/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water-insoluble hydrophilic gel comprising: (A) about 30 to about 90% of a hydrophilic (a) polymer of identical or different water-soluble mono-olefinic monomers, or (b) copolymer of said water-soluble monomers with 1 to 70% of water-insoluble, identical or different mono-olefinic monomers, which polymer or copolymer is cross-linked with (B) about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.