Abstract: The invention concerns the use of a fiber modified with functions capable of interacting with microbial cell wall proteins for immobilizing micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibers may be synthetic or cellulosic. Also hygiene products containing these fibers are described.

Abstract: The invention concerns the use of a fibre modified with functions capable of interacting with microbial cell wall proteins for immobilising micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibres may be synthetic or cellulosic. Also hygiene products containing these fibres are described.

Abstract: A superabsorbent article of the invention having improved odour control and microbial control, comprises a liquid-impervious back layer, a liquid-absorbing intermediate layer containing a partially neutralized, acidic hydrophilic polymer, especially a surface-crosslinked polyacrylate, and a liquid-pervious, non-absorbing top layer, and is characterised by comprising an alkali-neutralising agent which is evenly distributed in said absorbing intermediate layer.

Abstract: The present invention relates to a process for oxidising a hydroxyl group to form an aldehyde and/or carboxy group, the process comprising the step of reacting a substrate comprising at least one primary hydroxy group with a nitrosonium ion in the presence of an oxidase and hydrogen peroxide.

Abstract: A process for the separation of a protonated organic hydroxylamine compound and an organic nitrosonium compound from each other under acidic conditions, wherein a mixture of protonated organic hydroxylamine compound and organic nitrosonium compound is brought in contact with a hydrophobic resin to retain the organic hydroxylamine compound on the hydrophobic resin. A process for the oxidation of a hydroxy compound in the presence of an organic nitroxy compound and optionally a primary oxidant, using this separation process is also disclosed.

Abstract: A process for the recovery of an organic nitroxy compound from a solution of this nitroxy compound in an organic solvent or a mixture of a water-miscible organic solvent and water, the process includes the steps of: (a) adjusting the pH of the solution to a value below 4 to generate a nitrosonium ion and the -protonated hydroxylamine; (b) removing the organic solvent until a residue containing the nitrosonium ion and the protonated hydroxylamine has formed; (c) if necessary, redissolving the residue obtained in water; and (d) neutralizing the resulting aqueous solution to recover the nitroxy compound.

Abstract: A process for the separation of a secondary organic nitrosonium compound and/or a secondary organic hydroxylamine compound from an acidic aqueous medium containing them in dissolved form, includes the step of bringing into contact said acidic aqueous medium with a cation exchange resin. The process is used in a process for the recovery of secondary organic nitroxy compounds from an aqueous medium containing the nitroxy compound and oxidation processes for hydroxy compounds.

Abstract: A process for the oxidation of a hydroxy compound comprising the steps of: a) providing a first mixture containing an organic protonated hydroxylamine compound, b) oxidizing the protonated hydroxylamine compound to the corresponding nitrosonium compound, c) reacting the nitrosonium compound obtained thereby with a second mixture containing a hydroxy compound, and d) oxidizing the hydroxy compound with the nitrosonium compound, thereby generating the hydroxylamine.

Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.

Abstract: Dialdehyde carbohydrates such as dialdehyde starch (DAS) can be oxidised with oxygen or hydrogen peroxide in the presence of a laccase or another enzyme capable of oxidation. The oxidation is mediated by a di-tertiary nitroxyl such as TEMPO. The products contain both aldehyde groups and carboxyl groups and have excellent properties as wet strength agents.

Abstract: The invention concerns the use of a fibre modified with functions capable of interacting with microbial cell wall proteins for immobilising micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibres may be synthetic or cellulosic. Also hygiene products containing these fibres are described.

Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive.

Abstract: The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of peroxosulfate. The regenerated periodate is especially suitable for oxidizing carbohydrates to dialdehyde carbohydrates. The oxidation and regeneration can also be carried out in a single stage using a catalytic amount of periodate only.

Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.

Abstract: The invention relates to a disposable absorbent article to be worn by a user comprising an absorbent body (104) and a cover enclosing the same, which on a first side, facing the user in an in-use position, displays a fluid-pervious surface layer (102) and on a second side, facing away from the user in an in-use position, displays a fluid-impervious surface layer (103), and is characterized in that the fluid-pervious surface layer (102) comprises an impregnation comprising at least one hydrophilic organic solvent having a low vapor pressure at room temperature.

Abstract: The present invention relates to a method for obtaining a catalytically active mixture based on stable nitroxyl radicals. The invention is characterized in that the stable nitroxyl radicals are hydrophobic and are selectively separated from a reaction mixture by means of hydrophobic interactions.

Abstract: The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of peroxosulfate. The regenerated periodate is especially suitable for oxidizing carbohydrates to dialdehyde carbohydrates. The oxidation and regeneration can also be carried out in a single stage using a catalytic amount of periodate only.

Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75.1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.