Poly(dialkylaminoalkyl (meth)acrylamide)-based superabsorbent gels
US5962578A · kind A · utility
19Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/922
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Poly(dialkylaminoalkyl (meth)acrylamide)-based superabsorbent gels are disclosed. The superabsorbent gels either comprise a mixture of a poly(dialkylaminoalkyl (meth) acrylamide) polymer and an acidic water-absorbing polymer, like polyacrylic acid, or comprise a salt of a poly(dialkylaminoalkyl (meth)acrylamide) polymer. An improved method of preparing an N-(dialkylaminoalkyl) (meth)acrylamide monomer also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.