Modified starches as extenders for absorbent polymers
US4483950A · kind A · utility
26Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1982 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Dec 10, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Starch-based superabsorbents are extended by blending with highly modified, low molecular weight starches. The dextrinized starches synergistically interact with the superabsorbents thereby permitting dilution without a commensurate reduction in the water absorbency. While the principal utility of the blends is the absorption of aqueous fluids, when hydrated they yield soft, smooth gels useful as high-quality thickening agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.