초록 ▼

The invention relates generally to an odor-absorbing superabsorbing composition, a process for production of an odor-absorbing superabsorbing composition, a composite comprising an odor-absorbing superabsorbing composition, a hygiene article comprising a composite, chemical products comprising or ba

The invention relates generally to an odor-absorbing superabsorbing composition, a process for production of an odor-absorbing superabsorbing composition, a composite comprising an odor-absorbing superabsorbing composition, a hygiene article comprising a composite, chemical products comprising or based on an odor-absorbing superabsorbing composition or a composite, as well as the use of an odor-absorbing superabsorbing composition or of a composite in chemical products.

대표청구항 ▼

1. An odor-absorbing superabsorbing composition, comprising: i a post-crosslinked water-absorbing polymer structure having an average particle size in the range of about 515 μm to about 850 μm; andii an odor binder comprising as components b1 an amino acid wherein said amino acid is cysteine; andb2

1. An odor-absorbing superabsorbing composition, comprising: i a post-crosslinked water-absorbing polymer structure having an average particle size in the range of about 515 μm to about 850 μm; andii an odor binder comprising as components b1 an amino acid wherein said amino acid is cysteine; andb2 a ricinolate compound of general formula I with R1 as a C1 to C20 hydrocarbon,X as not present or a double bond system comprising in a range from 1 to about 5 double bonds;M as a charged or uncharged metal;m in a range from 1 to about 15;n in a range from 1 to about 5;o in a range from 1 to about 4, wherein said odor binder is brought into contact with the surface of the post-crosslinked water-absorbing polymer structure after surface crosslinking such that the penetration depth of said odor binder into said surface of the post-crosslinked water-absorbing polymer structure is less than 2% of the diameter of the water-absorbing polymer structure wherein the odor-absorbing superabsorbing composition has an absorption against pressure of 0.7 psi (AAP(0.7 psi)) of from 21 g/g to 30 g/g. 2. The odor-absorbing superabsorbing composition according to claim 1, wherein the ricinolate compound is zinc ricinolate. 3. The odor-absorbing superabsorbing composition according to claim 1, further comprising less than 20 wt. %, based on the odor-absorbing superabsorbing composition, of a cross-linkable, non-crosslinked polymer. 4. The odor-absorbing superabsorbing composition according to claim 1 wherein the post-crosslinked water-absorbing polymer structure is surface crosslinked with a compound which is different from component b1. 5. The odor-absorbing superabsorbing composition according to claim 1 further comprising iii. a polymeric binder which is different from the post-crosslinked water-absorbing polymer structure. 6. The odor-absorbing superabsorbing composition according to claim 5, whereby the polymeric binder comprises two or more OH groups. 7. A composite comprising the odor-absorbing superabsorbing composition according to claim 1. 8. A hygiene article comprising a liquid-permeable top sheet, a liquid impermeable back sheet and a composite according to claim 7 arranged between the top sheet and the back sheet. 9. A process for production of a superabsorbing composition, comprising the process steps of: i providing a post-crosslinked water-absorbing polymer structure having an average particle size in the range of about 515 μm to about 850 μm; and;ii bringing into contact of the surface of the post-crosslinked water-absorbing polymer structure with an odor binder comprising as components b1 an amino acid wherein said amino acid is cysteine; andb2 a ricinolate compound of general formula I with R1 as a C1 to C20 hydrocarbon;X as not present or a double bond system comprising in a range from 1 to 5 double bonds;M as a charged or uncharged metal;m in a range from 1 to about 15;n in a range from 1 to about 5;o in a range from 1 to about 4 wherein said odor binder is brought into contact with the surface of the post-crosslinked water-absorbing polymer structure after surface crosslinking such that the penetration depth of said odor binder into said surface of the post-crosslinked water-absorbing polymer structure is less than 2% of the diameter of the water-absorbing polymer structure wherein the odor-absorbing superabsorbing composition has an absorption against pressure of 0.7 psi (AAP(0.7 psi)) of from 21 g/g to 30 g/g. 10. The process according to claim 9 wherein the ricinolate compound is zinc ricinolate. 11. The process according to claim 9 wherein the water-absorbing polymer structure has a water content of less than 10 wt. %, based on the polymer structure. 12. The process according to claim 9 wherein less than 20 wt. %, based on the composition, of a cross-linkable, non-crosslinked polymer is used as a binder.