Cross-linked polymer

Details Cross-linked polymer Cross-linked polymer

1998-01-27

1999-11-16

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528322, 528332, 528363, 528480, 528492, C08G 6910

Patent

active

059860421

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.

REFERENCES:
patent: 4389513 (1983-06-01), Miyazaki
patent: 5461085 (1995-10-01), Nagatomo et al.

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