Absorbing material based on starch having improved absorbent properties and process for the preparation thereof
A biodegradable, highly water-absorbing polymer based on starch or derivatives thereof is described, wherein the starch has not been chemically modified or only to a degree of substitution below 0.2, and has a water-absorbing power of at least 10 times its own weight, half of the water absorption being attained within 3 minutes. A process for producing such a water-absorbing polymer is also described, the process comprising modifying and treating the starch in a co-continuous water-oil or oil-water system in such a way that an open, slightly crosslinked structure is fixated.
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| Main Authors: | , , |
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| Format: | Patent biblioteca |
| Language: | English |
| Subjects: | Life Science, |
| Online Access: | https://research.wur.nl/en/publications/absorbing-material-based-on-starch-having-improved-absorbent-prop |
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| Summary: | A biodegradable, highly water-absorbing polymer based on starch or derivatives thereof is described, wherein the starch has not been chemically modified or only to a degree of substitution below 0.2, and has a water-absorbing power of at least 10 times its own weight, half of the water absorption being attained within 3 minutes. A process for producing such a water-absorbing polymer is also described, the process comprising modifying and treating the starch in a co-continuous water-oil or oil-water system in such a way that an open, slightly crosslinked structure is fixated. |
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