Abstract: Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion copolymerization of (a) from 25 to 50% by weight of at least one optionally substituted styrene, methyl methacrylate, acrylonitrile and/or methacrylonitrile, (b) from 1 to 49% by weight of at least one C1-C4-alkyl acrylate and/or one C2-C4-alkyl methacrylate, (c) from 1 to 49% by weight of at least one C5-C22-alkyl acrylate and/or one C5-C22-alkyl methacrylate and (d) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer and (e) from 15 to 40% by weight of a degradable starch which has a molar mass Mw of from 1000 to 65 000 the sum (a)+(b)+(c)+(d)+(e) being 100% and being based on the total solids content, in the presence of redox initiators and at least 0.

Abstract: Phosphate-free detergent formulations for machine dishwashing, comprising, as components: a) from 1 to 20% by weight of a mixture of a1) from 5 to 95% by weight of hydrophobically modified polycarboxylates I formed from a11) from 20 to 80 mol % of at least one monoethylenically unsaturated C3-C10-mono- or -dicarboxylic acid or anhydrides thereof, a12) from 0 to 80 mol % of at least one monomer of the general formula (I) ?in which R1, R2 and R3 are each independently H, CH3 or C2H5, and R4 is a linear, branched or cyclic radical having from 1 to 6 carbon atoms or an aromatic radical having from 6 to 12 carbon atoms, and a13) from 0 to 20 mol % of at least one further monomer selected from the group consisting of olefins having 10 or more carbon atoms or mixtures thereof and reactive polyisobutenes having an average of from 12 to 100 carbon atoms, a2) from 5 to 95% by weight of hydrophilically modified polycarboxylates II formed from a21) from 50 to 99 mol % of acrylic acid or acrylic acid s

Abstract: Aqueous dispersions of (meth)acrylic esters of polymers comprising N-hydroxyalkylated lactam units and obtainable by free-radically initiated emulsion polymerization, wherein monomers copolymerized are (a) styrene, acrylonitrile, methacrylonitrile and/or methyl methacrylate, (b) at least one C1 to C18 alkyl acrylate and/or at least one C2 to C18 alkyl methacrylate, (c) at least one acrylic ester of an N-hydroxyalkylated lactam and/or at least one methacrylic ester of an N-hydroxyalkylated lactam, and (d) if appropriate, other ethylenically unsaturated monomers, and use of these aqueous dispersions and/or of polymers which comprise in copolymerized form at least one acrylic ester of an N-hydroxyalkylated lactam and/or at least one methacrylic ester of an N-hydroxyalkylated lactam for treating the surface of paper and of paper products, and also the inkjet papers obtainable accordingly.

Abstract: Alkyldiketene-containing aqueous polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, processes for the preparation of such polymer dispersions and the use of the thus obtainable dispersions as sizes for paper or as water repellents for leather, natural and/or manmade fibers and textiles.

Abstract: Flexible, sheet-like substrates having an abrasive surface, which are obtainable by applying an aqueous solution or dispersion of at least one precondensate of a heat-curable resin to the top and/or bottom of a flexible, sheet-like substrate in an amount of at least 5 to 90% by weight, based on the uncoated, dry substrate, crosslinking the precondensate and drying the treated substrate.

Abstract: Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion copolymerization of (a) from 30 to 60% by weight of at least one optionally substituted styrene, acrylonitrile and/or methacrylonitrile, (b) from 5 to 50% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 5 to 30% by weight of at least one olefin, (d) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer and (e) from 15 to 35% by weight of a degraded starch, the sum (a)+(b)+(c)+(d)+(e) being 100% and being based on the total solids content, in an aqueous medium in the presence of at least one redox initiator, processes for the preparation of the aqueous polymer dispersions by free radical emulsion copolymerization of the components (a) to (e) in an aqueous medium in the presence of a redox initiator and use of the finely divided, starch-containing polymer dispersions thus obtainable as sizes for paper, board and cardboard.

Abstract: Aqueous polymer dispersions which are obtainable by free radical copolymerization of (a) from 0.1 to 99.9% by weight of styrene and/or methylstyrene, (b) 0.1-99.9% by weight of 1,3-butadiene and/or isoprene and (c) from 0 to 40% by weight of other ethylenically unsaturated copolymerizable monomers, the sum of the monomers (a), (b) and (c) always being 100, in the presence of from 10 to 40% by weight, based on the monomers used, of at least one degraded starch having a molecular weight Mn of from 500 to 40 000 and of water-soluble redox catalysts are prepared by free radical copolymerization of the monomers (a), (b) and, if required, (c) in an aqueous medium in the presence of a degraded starch having a molecular weight Mn of from 500 to 10 000 and redox initiators and are used as engine sizes and surface sizes for paper.

Abstract: Finely divided, cationic polymer dispersions which are obtainable by emulsion polymerization of ethylenically unsaturated monomers in an aqueous solution of a cationic prepolymer as a dispersant, wherein a cationic prepolymer is first prepared by polymerization of (a) from 10 to 45% by weight of at least one (meth)acrylate which has an amino group and/or a quaternary ammonium group, and/or one (meth)acrylamide which carries an amino group and/or a quaternary ammonium group, (b) from 40 to 85% by weight of at least one optionally substituted styrene, (c) from 0 to 20% by weight of acrylonitrile or methacrylonitrile, (d) from 1 to 15% by weight of at least one ethylenically unsaturated carboxylic acid or one ethylenically unsaturated carboxylic anhydride and (e) from 0 to 20% by weight of at least one nonionic, ethylenically unsaturated monomer differing from the monomers (b) and (c), the sum of (a)+(b)+(c)+(d)+(e) being 100% by weight, in a solution polymerization in a water-miscible organic solvent, and the

Abstract: Paper size mixtures comprising a reactive size dispersed in water and a polymer, which are obtainable by mixing (a) an aqueous dispersion of a reactive size whose dispersed particles have a mean particle diameter of less than 500 nm, the dispersion being obtainable by emulsifying at least one reactive size in water in the presence of at least one surfactant, and (b) at least one emulsion polymer and/or at least one water-soluble polymer which does not have a dispersing effect with respect to reactive sizes and/or a water-dispersible polymer, and use of said paper size mixtures for the engine sizing and surface sizing of paper and paper products.

Abstract: Process for finishing paper and paper products by treating the surface of paper or paper products with at least one finishing agent, at least one finishing agent being applied in the form of a pattern on the top and/or bottom of paper or paper products, and the papers and paper products obtainable by the process.

Abstract: A process for printing on substrates, wherein the substrates are pretreated with a composition which comprises a polymer obtainable by free radical polymerization of ethylenically unsaturated compounds (monomers) (referred to below as polymer for short), and at least 40% by weight of the monomers are olefins.

Abstract: Finely divided, amphoteric, aqueous polymer dispersions which are obtainable by a two-stage polymerization, a prepolymer being prepared in the first polymerization stage from a monomer mixture comprising (a) from 15 to 40% by weight of at least one (meth)acrylate and/or (meth)acrylamide having in each case a free amino group, protonated amino group and/or quaternized amino group, (b) from 40 to 70% by weight of at least one optionally substituted styrene, (c) from 0 to 25% by weight of acrylonitrile and/or methacrylonitrile, (d) from 0.

Abstract: Aqueous alkenylsuccinic anhydride-containing polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkenylsuccinic anhydrides, processes for the preparation of such polymer dispersions by polymerizing hydrophobic monomers by a miniemulsion polymerization method in the presence of at least one alkenylsuccinic anhydride and, if appropriate, an alkyldiketene, and use of the resulting aqueous alkenylsuccinic anhydride-containing polymer dispersions as engine and surface sizes for paper and for imparting water repellency to leather, natural and/or synthetic fibers and textiles.

Abstract: A process for the preparation of aqueous polymer dispersions comprising at least one lipophilic active substance by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of at least one lipophilic active substance, wherein (i) at least one lipophilic active substance which has a water solubility of not more than 5 g/l (determined at 25° C. and 1013 mbar) and a melting point below 130° C.

Abstract: A process for printing on substrates, wherein the substrates are pretreated with a composition which comprises a polymer obtainable by free radical polymerization of ethylenically unsaturated compounds (monomers) (referred to below as polymer for short), and at least 1% by weight of the monomers are monomers having two carboxyl groups (dicarboxylic acid) or a dicarboxylic anhydride group (summarized below as anhydride monomer for short).

Abstract: Finely divided, starch-containing polymer dispersions obtainable by emulsion copolymerization, with redox initiators, of ethylenically unsaturated monomers from the group consisting of (a) from 45 to 55% by weight of at least one optionally substituted styrene, methyl methacrylate, acrylonitrile and/or methacrylonitrile, (b) from 15 to 29% by weight of at least one C1-C12-alkyl acrylate and/or one C2-C12-alkyl methacrylate and (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer in an aqueous medium in the presence of (d) from 15 to 35% by weight of a degraded cationized starch which has a molar mass Mw of from 1000 to 65 000, the sum (a)+(b)+(c)+(d) being 100% and being based on the total solids content, processes for the preparation of such polymer dispersions by emulsion polymerization of the monomers (a), (b) and (c) in an aqueous medium with redox initiators in the presence of (d) cationic starch, and use of the starch-containing polymer dispersions as size

Abstract: Process for printing on substrates, wherein the substrates are pre-treated with a composition which comprises a polyurethane, polyureaurethane or polyurea or a mixture thereof.

Abstract: A process for producing a recording material printable with an ink jet printer and having a gel layer for that purpose comprises a) coating a support with a dispersion or solution of an organic gel former that is chemically crosslinkable by polycondensation or poly adduct formation, b) then effecting gel formation by polycondensation or poly adduct formation, and c) finally drying the gel.

Abstract: The invention relates to a method for reducing the absorption of water and water vapor and for increasing the dimensional stability of paper and paper products by treatment with an aqueous solution and/or dispersion of at least one reactive material which reacts with itself and/or cellulose fibers with crosslinking, cellulose fibers or a paper product obtained therefrom by drainage on a wire being compressed, the compressed paper product then being brought into contact with an aqueous solution and/or dispersion of the reactive material, the compression being eliminated with further action of the aqueous solution and/or dispersion and the paper product being dried and crosslinked, and to the use of the coated paper products thus obtainable and/or of the coated cellulose fibers which can be produced therefrom by defibrating as an additive to thermoplastics and as an additive to heat-curable plastics.

Abstract: A process for the production of paper, board and cardboard in the presence of a water-swellable polymer by adding the water-swellable polymer to a fiber suspension, the fiber suspension comprising water-swellable polymers being beaten.