Poly (vinylamine)-based superabsorbent gels and method of manufacturing the same
US6194631A · kind A · utility
22Cited by
21References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
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), and improved diaper cores, also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.