ODOR ADSORBENT
Described is an odor adsorbent, in particular for use in absorptive hygiene articles, comprising: a) peroxomonosulfuric acid and/or salts thereof and also b) zeolite. Also described are water-absorbing polymeric particles wherein the particles are laden with a mixture comprising a) peroxomonosulfuric acid and/or salts thereof and also b) zeolite, and wherein the water-absorbing polymeric particles preferably comprise a crosslinked polymer based on partially neutralized acrylic acid, and more particularly are surface-postcrosslinked.
1 . An odor adsorbent, in particular for use in absorptive hygiene articles, comprising:
a) peroxomonosulfuric acid and/or salts thereof,
b) zeolite.
2 . Adsorbent according to claim 1 , characterized in that it comprises from 0.0001 to 15 parts by weight of peroxomonosulfuric acid and/or salts thereof, and from 0.0005 to 5 parts by weight of zeolite, based on the overall amount of zeolite plus peroxomonosulfuric acid and/or salts thereof.
3 . Adsorbent according to claim 1 , wherein the zeolites have a particle size of 0.1 to 50 μm.
4 . Adsorbent according to any of claim 1 , wherein it is in an immobilized state on water-absorbing polymeric particles and more particularly is in solid pulverulent form, wherein the water-absorbing polymeric particles preferably comprise a crosslinked polymer based on partially neutralized acrylic acid, and more particularly are surface-postcrosslinked.
5 . Adsorbent according to claim 1 , wherein it includes at least 80% by weight of water-absorbing polymeric particles, based on the overall mass of zeolite, peroxomonosulfuric acid and/or salts thereof and also water-absorbing polymeric particles.
6 . A water-absorbing polymeric particle, wherein the water-absorbing polymeric particle are laden, in particular at least partially coated, with a mixture comprising
a) peroxomonosulfuric acid and/or salts thereof
b) zeolite,
wherein the water-absorbing polymeric particle comprise a crosslinked polymer based on partially neutralized acrylic acid and more particularly are surface-postcrosslinked.
7 . The water-absorbing polymeric particle according to claim 6 , wherein the amount of zeolite is from 0.0005 to 5% by weight and also in that the amount of peroxomonosulfuric acid and/or salts thereof is from 0.0001 to 15% by weight, all based on water-absorbing polymeric particles laden with zeolite and peroxomonosulfuric acid and/or salts thereof.
8 . A process for producing odor adsorbents wherein water-absorbing polymeric particles are contacted, with an aqueous solution of peroxomonosulfuric acid and/or salts thereof together with zeolite, wherein the contacting is effected by spraying in particular.
9 . A hygiene article comprising an odor adsorbent according to claim 1 .
10 . Use of an odor adsorbent according to claim 1 for reducing or eliminating unpleasant odors preferably emanating from human excretion products, preferably urine, in particular for reducing or eliminating such unpleasant odors resulting from foul-smelling components already present in the human excretion product, preferably urine, at the time of excretion.
11 . Use of an odor adsorbent according to claim 1 for preventing the formation of unpleasant odors resulting from breakdown products of human excretion products, preferably urine, in particular for inhibiting unpleasant odor due to ammonia.
12 . Use according to claim 10 for reducing unpleasant-smelling odorants in the use of a hygiene article in a hygiene application, in particular in the gas space above the solid/liquid phase of a hygiene article in a hygiene application.