Cross-linked polymer
AssigneeMitsui Chemicals, Inc.
InventorsYoshihiro Irizato, Makoto Sukegawa, Toshio Katoh, Hiroaki Tamatani
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Abstract
A cross-linked polymer containing, in its molecule, recurring units represented by the following formula (1), and having biodegradability and high water-absorbency: ##STR1## wherein R.sub.1 is a pendant group having at least one functional group selected from the group consisting of acidic groups and salts thereof, a glycino group and salts thereof, cationic groups and betaine groups; X.sub.1 is NH, NR.sub.1 ', R.sub.1 ' being an alkyl, aralkyl or aryl group, O or S; and n.sub.1 is 1 or 2.
Claims12
A cross-linked polymer having, in a molecule thereof, recurring units represented by the following formula (1):
- ##STR12## wherein R.sub.1 is a pendant group having at least one functional group selected from the group consisting of acidic groups and salts thereof, a glycino group and salts thereof, cationic groups and betaine groups;
- X.sub.1 is NH, NR.sub.1 ', R.sub.1 ' being an alkyl, aralkyl or aryl group, O or S;
- and n.sub.1 is 1 or 2.
Dependencies are inferred from the claim text.