Resumen
[0001] A new composition which is absorbent and inhibitive of the formation of bad smells in absorbent hygienic litter for animals that comprises a carrier and a molecular complex is described. The carrier is a porous, granular, solid, clayish, mineral substrate with a high specific surface, with a high liquid absorption capacity. The molecular complex is a mixture of natural and/or synthetic organic compounds, some identical to natural ones, with properties inhibitive of bad smells, caused by the products of bacterial degradation of cat urine, by means of specific reactions of neutralization thereof. The molecular complex is basically retained inside the structure of the particles of the carrier, in such a way that the inhibitive activity thereof is regulated and strengthened by the physicochemical properties of the carrier. [0002] Preferably, the molecular complex is present in the composition in a conclentration of 0.02 to 2% of the total weight thereof.
Reivindicaciones
1. Composition which is absorbent and inhibitive of the formation of bad smells in animal litter that comprises a deodorizing molecular complex and a carrier, characterized in that the molecular complex is at least a compound with inhibitive properties of the formation of bad smells coming from the bacterial degradation of felinine; the carrier is a liquid absorbing, granular, porous, clayish mineral substrate selected from among sepiolite, sepiolitic clays, natural, modified or synthetic clay minerals and mixtures thereof with a porosity higher than 0.1 cm<3>/g and a specific surface larger than 50 m<2>/g; the molecular complex is absorbed inside the granules of the carrier. 2. Composition according to claim 1, characterized in that the molecular complex is present in the composition in a concentration of 0.02 to 2% of the total weight of the composition. 3. Composition according to claim 1 or 2, characterized in that the molecular complex contains at least one compound selected from among the group of inhibitors of bad smells coming from the bacterial degradation of felinine, which comprises at least one compound selected from among aromatic amines, aliphatic ketones, aliphatic esters, aromatic lactones, phenols, aromatic ethers and amine type nitrogenous compounds, with a vapor tension less than or equal to 4 Pa at 25° C, and from aldehydes or mixtures thereof. 4. Composition according to claim 1, characterized in that the clay mineral is selected from among bentonites, attapulgites, marls and mixtures thereof. 5. Composition according to claim 3, characterized in that it contains at least one amine type nitrogenous compound selected from among indole and compounds of reaction with hydroxycitronella called indolene, aliphatic nitriles. 6. Compound according to claim 5, characterized in that the nitrogenous compound is tridicene-2-nitrile. 7. Compound according to claim 3, characterized n that it contains at least one aromatic ether selected from among diphenyl oxide, methylated and ethylated naphthol ethers and galaxolide. 8. Composition according to claim 3, characterized in that it contains at least one phenol selected from among eugenol and isoeugenol. 9. Composition according to claim 3, characterized in that it contains at least one aromatic lactone selected between coumarin and dihydrocoumarin. 10. Composition according to claim 3, characterized in that it contains at least one aliphatic lactone selected from among gamma-decalactone, dodecalactone and undecalactone. 11. Composition according to claim 3, characterized in that it contains at least one aliphatic ester selected from C<8> to C<15> esters. 12. Composition according to claim 11, characterized in that the aliphatic ester is selected from among the group comprised of methyl dihydro-jasmonate, methyl jasmonate, methyl cyanamate and ethyl methylphenylglycidate or mixtures thereof. 13. Composition according to claim 11, characterized in that the aliphatic ester is selected from among aromatic esters. 14. Composition according to claim 13, characterized in that the aromatic ester is selected from among the group comprised of methyl anthranilate, methyl N-methylanthranilate, methyl N-methylanthranilate, p-cresyl phenyl acetate and amyl salicylate. 15. Composition according to claim 3, characterized in that it contains at least one C<13>-C<14> ketone. 16. Composition according to claim 15, characterized in that the C<13>-C<14> ketone is selected from the group comprised of alpha- and beta- ionones and damaskones. 17. Composition according to claim 3, characterized in that it contains at least one ketone selected from among the group comprised of aliphatic and aromatic ketones with a musk-like smell of up to 18 carbon atoms, or mixtures thereof. 18. Composition according to claim 3, characterized in that it contains at least one aliphatic C<10> to C<12> alcohol. 19. Composition according to claim 18, characterized in that the aliphatic alcohol is selected from among the group comprised of decanol, citronellol and geraniol. 20. Composition according to claim 3, characterized in that it contains at least one C<10> to C<13> aldehyde. 21. Composition according to claim 3, characterized in that it contains at least one aliphatic aldehyde. 22. Composition according to claim 21, characterized in that the aliphatic aldehyde is selected from among the group comprised of normal or branched dodecanal and myrac aldehyde. 23. Composition according to claim 3, characterized in that it contains at least one aromatic aldehyde. 24. Composition according to claim 23, characterized in that the aromatic aldehyde is selected from among the group comprised of cyclamen aldehyde, helional, heliotropine, paramethylphenylacetaldehyde, vanillin and derivatives thereof. 25. Composition according to claim 3, characterized in that it contains a first aldehyde selected from among the group comprised of aliphatic, acyclic and non-terpene aldehydes, alicyclic non-terpene aldehydes, terpene aldehydes, aliphatic aldehydes substituted by an aromatic group, bifunctional aldehydes and a second aldehyde selected from among the group comprised of aldehydes that have alpha insaturation of the aldehyde function conjugated with an aromatic cycle and aldehydes wherein the function is carried by an aromatic cycle. 26. Composition according to claim 25, characterized in that the first aldehyde is selected from among helional and citronella. 27. Composition according to claim 25, characterized in that the second aldehyde is selected between citral and jasmonal. 28. Composition according to claim 25, characterized in that the first aldehyde is helional and the second aldehyde is citral. 29. Composition according to claim 25, characterized n that the first aldehyde is helional and the second aldehyde is jasmonal. 30. Composition according to claim 25, characterized in that the first aldehyde is citral and the second aldehyde is jasmonal. 31. Composition according to any of the claims 25 or 28-30, characterized in that the ratio between the first aldehyde and the second aldehyde is 20:80 up to 80:20 by weight. 32. Composition according to claim 31, characterized in that the ratio between the first aldehyde and the second aldehyde is 50:50 by weight. 33. Composition according to claim 1 or 4, characterized in that the mineral carrier is sepiolite. 34. Composition according to claim 1 or 4, characterized in that the mineral carrier is sepiolitic clay. 35. Composition according to any of the claims 1, 4, 33 or 34, characterized in that the mineral carrier comprises granules of a particle size between 0.1 and 6 mm. 36. Composition according to claim 35, characterized in that the particle size is from 0.6 to 3.35 mm. 37. Composition according to claim 35, characterized in that the sepiolite has a granulometric distribution between 6 and 60 mesh ASTM and an apparent density between 400 and 1000 kg/m<3>. 38. Composition according to any of the claims 33 or 34, characterized in that the molecular complex is essentially integrated in a fine fraction of the mineral carrier. 39. Composition according to any of the claims 1, 4, 33 or 34, characterized in that the mineral carrier has a specific surface larger than 100 m<2>/g. 40. Composition according to claim 39, characterized in that the mineral carrier has a specific surface larger than 200 m<2>/g. 41. Method for the preparation of a composition according to any of the claims 1 to 40, characterized in that it comprises a first step wherein the molecular complex is mixed in water by mechanical stirring until a liquid mixture is obtained; a second step wherein the liquid mixture is sprayed on at least part of the fine fraction of the mineral carrier, until the molecular complex penetrates into the porous structure of the particles of the mineral carrier and a solid mixture is obtained; a third step wherein the mixture is homogenized in a rotary drum; and a fourth step wherein the homogenized mixture coming from step three is dry mixed with the rest of the mineral carrier. 42. Method according to claim 41, characterized in that in step one 1 to 10 parts by weight of the molecular complex are mixed with 99 to 90 parts of water. 43. Method according to claim 41, characterized in that in step two the mixture coming from step one is mixed only with a fine fraction of the mineral carrier and in that at the end of step four, the fine fraction is dry mixed with the rest of the fractions of the mineral carrier. 44. Method according to claim 43, characterized in that 1 part of the fine fraction is mixed with 2 to 6 parts of the rest of the fractions of the carrier. 45. Method according to claim 44, characterized in that 1 part of the fine fraction is mixed with 4 parts of the rest of the fractions of the carrier. 46. Use of a composition according to any of the claims 1 to 40, wherein the bottom of a tray is covered with a layer of the composition with an average thickness between 0.5 and 6 cm.
