Basf Aktiengesellschaft

Ulrich Riebeling

Hans-Juergen Degen

Lothar Hoehr

Arnold De Clercq

Roland Ettl

Andreas Hohmann

Fritz Reichel

Heinrich Hartmann

Walter Denzinger

Knut Oppenlaender

Erwin Hahn

Rainer Dyllick-Brenzinger

Markus Schmid

Norbert Greif

Christoph Hamers

Klaus Lorenz

Werner Auhorn

Enrique Freudenberg

Volkmar Weberndoerfer

Andreas Brockmeyer

Peter Wittmer

Peter Ksoll

Franca Tiarks

Lothar Hohr

Arnold DeClercq

Carlos A Goncalves

Aqueous alkyl ketene dimer dispersions which comprise at least 15% by weight of an alkyl ketene dimer and at least one water-soluble cationic starch, aluminum sulfate and at least one condensate of naphthalenesulfonic acid and formaldehyde or lignin sulfonic acid or in each case salts thereof, the dispersions comprising, based in each case on alkyl ketene dimer, from 2 to 50% by weight of aluminum sulfate, and in which the dispersions additionally comprise from 0.1 to 5% by weight of a saturated carboxylic acid having 1 to 10 carbon atoms, benzenesulfonic acid, p-toluenesulfonic acid and/or a mineral acid at an aluminum sulfate content of from 2 to 15% by weight, and the use of the dispersions as engine size and surface size for paper and paper products.

Aqueous alkylketene dimer dispersions

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.

Aqueous polymer dispersions containing alkyldiketenes, methods for the production thereof, and their use

Preparation of recording materials for inkjet printers

Paper size mixtures

Abstract of the Disclosure: Copolymers of (a) C.sub.12 - to C.sub.24 -monoolefins and (b) maleic anhydride or itaconic anhydride, having molecular weights of from 800 to 100,000 g/mol, in the form of partially or completely neutralized semiamides with morpholine, in aqueous solution or dispersion, can be used as sizes for paper.

Paper sizing using copolymers of long-chain olefins and maleic anhydride

Stabilized aqueous C.sub.14 -C.sub.22 -alkyldiketene emulsions containing, as essential components:

Stabilized aqueous alkyldiketene emulsions

The printability of paper is improved by applying an aqueous coating agent consisting of

Printability of paper

Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of

Paper size based on finely divided aqueous dispersions

Sizing agents for paper are based on finely divided aqueous dispersions of copolymers obtainable by copolymerizing from 40 to 140 parts by weight of a monomer mixture of

Sizing agents for paper based on finely divided aqueous dispersions

Engine sizes for paper are based on aqueous emulsions of C.sub.14 -C.sub.20 -alkyl diketenes and cationic copolymers of

Engine size for paper, based on fatty alkyl diketenes and cationic

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Schifferstadt, Germany

Ulrich Riebeling