| abstract |
A highly absorbent material, especially suitable for use in absorbent disposable products such as sanitary towels and tampons, consisting of a substantially water-insoluble cross-linked gelatinized starch, in which the degree of substitution of the cross-linking groups is from 0.001 to 0.04, which is substituted by ionic groups which are associated with mono- or di-valent counterions, and which has a urine retention value of at least 6 g/g. |