Superabsorbent surface-treated carboxyalkylated polysaccharides and process for producing same
US8461129B2 · kind B2 · utility
152Cited by
21References
17Claims
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Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Dec 12, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2303/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Surface-treated carboxyalkylated polysaccharides comprising a biobased content of at least 82% are described herein. The surface-treated carboxyalkylated polysaccharides comprise a CRC of at least 18 g/g, a FSC of at least 26 g/g, and an AUL at 0.7 psi of at least 14 g/g. Processes for the manufacture of surface-treated carboxyalkylated polysaccharides are also described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.