BIODEGRADABLE SUPER-ABSORBENT POLYMER COMPOSITION WITH GOOD ABSORPTION AND RETENTION PROPERTIES

摘要

The invention relates to a method for producing a super-absorbent composition, said method comprising the following steps: i. production of a hydrogel by the radical polymerisation of an aqueous monomer solution containing at least one monomer; ii. drying of the hydrogel with a view to obtaining a water-absorbent polymer structure; iii. superficial cross-linking of the water-absorbent polymer structure with a view to obtaining a superficially cross-linked water-absorbent polymer structure; and iv. integration of a starch compound in one, or at least two, of the variants V1 to V6, V1 in method step i in the monomer solution, V2 following method step i and before method step ii in the hydrogel, V3 in method step ii, V4 following method step ii and before method step iii in the water-absorbent polymer structure, V5 in method step iii, and V6 following method step iii on the superficially cross-linked water-absorbent polymer structure. The invention also relates to a super-absorbent composition that can be obtained according to said method, to a particulate super-absorbent composition, and to a composite, a hygiene article core and a hygiene article, other chemical products, and the use of said super-absorbent composition in chemical products.