Abstract: The invention relates to spiro compounds of the formula (I) and to monolithic materials prepared therefrom by twin ring-opening polymerisation which consist of a porous metal oxide or semimetal oxide framework and are suitable for use as catalyst supports or as supports for active compounds.

Abstract: Graft polymers whose grafting base is selected from the group consisting of polymers having vinylamine units, polyamines, polyamidoamines and polymers of ethylenically unsaturated acids and which comprise exclusively oligoalkylenimine side chains as side chains, process for the preparation of graft polymers having oligoalkylenimine side chains, at least one oligoalkylenimine which comprises a terminal aziridine group being grafted onto one of said grafting bases, and the use of the graft polymers thus obtainable as process chemicals in the production of paper, as antimicrobial coating materials, as builders in detergents and for the treatment of metal surfaces.

Abstract: A process for treating aqueous slurries of finely divided fillers, wherein the treatment is carried out by heating an aqueous slurry of at least one finely divided filler and then by adding an aqueous dispersion of at least one latex.

Abstract: Aqueous slurries of finely divided fillers which are at least partly coated with a composition comprising at least one water-soluble amphoteric copolymer and at least one latex.

Abstract: Process for treating aqueous slurries of finely divided fillers, an aqueous dispersion of at least one latex and an aqueous slurry of at least one starch being metered separately from one another into an aqueous slurry of at least one finely divided filler.

Abstract: Aqueous slurries of finely divided fillers which are at least partly coated with a composition comprising at least one water-soluble amphoteric copolymer and at least one swollen starch.

Abstract: The present invention relates to new hyperbranched polyesters based on oligohydroxycarboxylic acids with defined functionality.

Abstract: Biocidal multilayered system, characterized in that it comprises at least the following layers: —an anionic or cationic carrier, preferably cellulose as anionic carrier, —on this carrier alternating polymeric cationic and anionic layers starting with a layer having a charge opposite to that of the carrier, —wherein at least one layer is hydrophobically modified.

Abstract: Method for reducing the formamide content of preparations (P) prepared from N-vinylformamide monomers by polymerization.

Abstract: Paper coating slips comprising a) one or more binders b) if appropriate, a thickener c) if appropriate, a fluorescent or phosphorescent dye, in particular as an optical brightener d) pigments or fillers e) further assistants, e.g. leveling agents or other dyes, wherein at least 40% by weight of the total amount of the binders a) comprise a synthetic, water-soluble, anionic polymer (anionic polymer for short) and less than 50% by weight of the total amount of the binders a) are emulsion polymers.

Abstract: A process for producing paper, board and cardboard in the presence of an aqueous slurry of components comprising finely divided fillers coated at least partly with water-soluble amphoteric copolymers, which involves adding, further to the aqueous slurry of components comprising finely divided fillers, at least one cationic and/or amphoteric polymer comprising as structural element no esters of unsaturated carboxylic acids with quaternized amino alcohols to the fiber suspension prior to sheet forming.

Abstract: A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams containing units derived from monoethylenically unsaturated acids, which comprises treating the formed articles with at least 0.5% by weight of a polymer containing primary and/or secondary amino groups and having a molar mass of at least 300, the formed foam articles thus obtainable and use of the wet strength enhanced formed foam articles in hygiene articles.

Abstract: Disclosed is a method for determining the swellability and the swelling kinetics of superabsorbent material (9) such as polymer gels, for example, which comprises introducing a defined volume of the dry superabsorbent material (9) into a measuring vessel (7), using a movable element (4) within said measuring vessel (7) to apply a restraining force (12) to said superabsorbent material (9) and capturing the expansion of said superabsorbent material (9) contactlessly within a chamber (14) in a continuous manner by capturing the change in height of a piston (4) which bounds said chamber (14), travels in a measuring vessel (7) and is marked with a height scale (6).

Abstract: Aqueous slurries of finely divided fillers which are at least partly coated with polymers and which are obtainable by treating aqueous slurries of finely divided fillers with at least one water-soluble amphoteric copolymer which is obtainable by copolymerization of (a) at least one N-vinylcarboxamide of the formula ?where R1 and R2 are H or C1- to C6-alkyl, (b) at least one monoethylenically unsaturated carboxylic acid having 3 to 8 carbon atoms in the molecule and/or the alkali metal, alkaline earth metal or ammonium salts thereof and, if required, (c) other monoethylenically unsaturated monomers which are free of nitrile groups and, if required, (d) compounds which have at least two ethylenically unsaturated double bonds in the molecule and subsequent partial or complete elimination of the groups —CO—R1 from the monomers III incorporated in the form of polymerized units in the copolymer are used as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboa

Abstract: Hydrophilic open-celled resilient foams comprising melamine-formaldehyde resins, obtainable by (a) heating and crosslinking an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsifier, a blowing agent and a curing agent to form a foam, (b) then conditioning the foam at from 120 to 300° C. for from 1 to 180 minutes to remove volatiles, and (c) treating the foam during the conditioning or thereafter with at least one polymer containing primary and/or secondary amino groups and having a molar mass of not less than 300, are useful in hygiene articles to acquire, distribute and immobilize body fluids.

Abstract: Hydrophilic open-celled resilient foams containing melamine-formaldehyde resins, characterized by a droplet absorption rate of less than 5 seconds and an EU standard EN ISO 14184-1 formaldehyde emission of less than 100 mg of formaldehyde/kg of foam, and obtainable by (a) heating an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsifier, a blowing agent and a curing agent to form a foam and crosslink the precondensate, (b) then conditioning the foam at from 120 to 300° C. for from 1 to 180 minutes to remove volatiles, and (c) treating the foam during the conditioning or thereafter with at least one hydrophilicizer and/or with ozone, a corona discharge or a plasma, are useful in hygiene articles to acquire, distribute and immobilize body fluids.

Abstract: Water-absorbing, expanded, crosslinked polymers obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, (c) crosslinkers, (d) initiators, (e) 0.

Abstract: Flexible open-celled microcellular foams based on thermoplastic polymers are useful for fluid-absorbent hygiene articles.

Abstract: A water-absorbing, expanded, crosslinked polymer obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, (c) crosslinkers, (d) initiators, (e) 0.

Abstract: Absorber elements are described of at least one composite material having absorbent elements on a support, in which a plurality of elements of a superabsorbent foam are arranged on at least one support in a grid pattern at distances such that the elements in the swollen state touch at their peripheries.