Poly(vinylamine)-based superabsorbent gels and method of manufacturing the same
US6121409A · kind A · utility
28Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1999 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Apr 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Poly(vinylamine)-based superabsorbent gels are disclosed. The superabsorbent gels either comprise a mixture of a poly(vinylamine) polymer and an acidic water-absorbing polymer, like polyacrylic acid, or comprise a salt of a poly(vinylamine) polymer. An improved method of preparing poly(vinylamine) also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.