초록 ▼

A substantially water-insoluble, slightly cross-linked, partially neutralized, hydrogen-forming polymer composition consisting essentially of (a) from about 50 mole percent to 99.999 mole percent of polymerizable acid group-containing monomers, and (b) from about 0.001 mole percent to 10 mole percen

A substantially water-insoluble, slightly cross-linked, partially neutralized, hydrogen-forming polymer composition consisting essentially of (a) from about 50 mole percent to 99.999 mole percent of polymerizable acid group-containing monomers, and (b) from about 0.001 mole percent to 10 mole percent of a water-soluble polyamine; said hydrogel-forming polymer composition having been formed by reacting a water-soluble acid group-containing vinyl polymer with a water-soluble polyamine at a temperature sufficient to convert the substantial portion of the amino groups of the water-soluble polyamine into amido groups.

대표청구항 ▼

A substantially water-insoluble, slightly cross-linked, partially neutralized, hydrogel-forming polymer composition consisting essentially of (a) from about 50 mole percent to 99.999 mole percent of polymerizable acid group-containing monomers; (b) from about 0.001 mole percent to 10 mole percent of

A substantially water-insoluble, slightly cross-linked, partially neutralized, hydrogel-forming polymer composition consisting essentially of (a) from about 50 mole percent to 99.999 mole percent of polymerizable acid group-containing monomers; (b) from about 0.001 mole percent to 10 mole percent of a water-soluble polyamine; and (c) from about 0.01 to about 8 mole percent of a water-soluble aliphatic or substituted aliphatic primary or secondary monoamine; said hydrogel-forming polymer composition having been formed by reacting a water-soluble acid group-containing vinyl polymer with the water-soluble polyamine and the monoamine at a temperature sufficient to convert a substantial portion of the amino groups of the water-soluble polyamine and monoamine into amido groups.