Basf Se Corporation

Solenis Technologies, L.p.

Solenis Technologies Cayman, L.p.

Kristina Georgieva

Ulrike Licht

Karl Haeberle

Bernd Reck

Dirk Lawrenz

Dirk Wulff

Carmen-Elena Cimpeanu

Juergen Schmidt-Thuemmes

Christian Jehn-Rendu

Josef Breu

Konrad Roschmann

Ines Pietsch

Rabie Al-Hellani

Anja Song

Petra Arnold

Reinhold Dieing

Paola Romanato

Steven Zijlstra

Klaus Moeller

Arjan Thomas Termaten

Kimberly Simancas

Wouter Toutenhoofd

Christine Tonhauser

Patrick Feicht

Quan Wen

Gemma Sanders

Heinrich Harrer

Arjan Termaten

Jürgen Schmidt-Thümmes

Described is an aqueous one-component coating composition comprising dispersed polyurethane and phyllosilicate. The polyurethane carries acid groups which are at least partially neutralized with a hydrophilic base selected from inorganic bases and organic mono-amines. The hydrophilic base has a water solubility at 20&#xb0; C. of at least 150 g/l, preferably of at least 200 g/l. The composition can be used for providing oxygen barrier properties to a polymer film.

One-component aqueous coating compositions containing polyurethane and phyllosilicates for oxygen barrier coatings

Finely divided, cationic, aqueous polymer dispersion which is obtainable by emulsion polymerisation of ethylenically unsaturated monomers in an aqueous liquid containing a cationic prepolymer as a dispersant, wherein the cationic prepolymer is prepared in the presence of at least one polymerisation initiator by polymerisation of (a) from 15 to 45% by weight of at least one ethylenically unsaturated monomer comprising at least one quaternary ammonium group; (b) from 5 to 80% by weight of at least one optionally substituted styrene; (c) from 0 to 50% by weight of at least one C 1-12 alkyl (meth) acrylate; (d) from 0 to 10% by weight of at least one ethylenically unsaturated monomer comprising an acid group; (e) from 0 to 10% by weight of at least one ethylenically unsaturated monomer comprising an amine group; and (f) from 0 to 20% by weight of at least one non-ionic ethylenically unsaturated monomer differing from (b), (c) and (e), the sum of (a)+(b)+(c)+(d)+(e)+(f) being 100% by weight, in a first emulsion polymerisation in the presence of at least one non-ionic emulsifier, and thereafter, in the aqueous liquid containing the cationic prepolymer a second emulsion polymerisation is carried out, in the presence of at least one polymerisation initiator, of a monomer mixture comprising (i) from 10 to 70% by weight of at least one of an optionally substituted styrene or (meth) acrylonitrile; (ii) from 30 to 90% by weight of at least one CMS alkyl (meth) acrylate; (iii) from 0 to 30% by weight of at least one vinyl ester of linear or branched Ccarboxylic acids; and (iv) from 0 to 30% by weight of at least one non-ionic ethylenically unsaturated monomer differing from (i), (ii) and (iii), the sum of (i)+(ii)+(iii)+(iv) being 100% by weight, and the first emulsion polymerisation and/or the second emulsion polymerisation is optionally carried out in the presence of from 0 to 10% by weight of at least one polymerisation regulator. The polymer dispersions according to the present invention are suitable for use as sizing agents for paper, board and card board.

Finely divided, cationic, aqueous polymer dispersions, method for the production thereof, and the use thereof

Provided herein is a printing ink comprising at least two binders, at least one pigment, an aqueous carrier, and optional additives, wherein one binder is a specific polyurethane dispersion binder and a further binder is a specific poly(meth)acrylate dispersion binder.

Water-based printing ink comprising an aqueous dispersed polyurethane binder and an aqueous dispersed poly(meth)acrylate binder

Described is an aqueous polymer dispersion comprising a chain growth addition polymer obtainable via free-radically initiated emulsion polymerization from ethylenically unsaturated, free-radically polymerizable monomers, wherein the chain growth addition polymer is formed to an extent of not less than 60 wt % from primary monomers selected from vinylaromatic compounds, conjugated aliphatic dienes, vinyl esters of saturated C- to C-carboxylic acids, esters of acrylic acid or of methacrylic acid with monohydric C- to C-alcohols, aliphatic hydrocarbons having 2 to 8 carbon atoms and one or two double bonds, or mixtures thereof, wherein the monomers are polymerized in the presence of lignosulfonate and wherein the chain growth addition polymer is branched or crosslinked. Also described is a process for preparing the aqueous polymer dispersion. The polymer dispersion is useful for preparing paper coating compositions.

Aqueous polymer dispersion obtainable by free-radically initiated emulsion polymerization in the presence of lignosulfonate

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Mannheim, Germany

Kristina Georgieva