Basf Se Corporation

Kemira Oyj

Holger Kern

Anja Song

Petra Arnold

Christoph Hamers

Matthias Gerst

Alois Kindler

Dirk Wulff

Christoph Kiener

Carmen-Elena Cimpeanu

Hubertus Kroener

Michael Gross

Klaus Moeller

Christine Tonhauser

Klaus Möller

Michele Williams-Harry

Simone Milazzo

Mari Granstroem

Uwe Albrecht

Michele N Williams-Harry

Described herein is a protection film comprising a polyolefin carrier material, a precoating of the polyolefin carrier material with a primer selected from polyurethane dispersions and a pressure-sensitive adhesive layer of a radiation-crosslinked hotmelt adhesive. A process for producing such protection films is also described.

Protective films made of polyolefin support material, primer and radiation-crosslinkable hot melt adhesive

An antifoaming agent, based on an oil-in-water emulsion in which the oil phase accounts for from 5-50% by weight of the emulsion, where the oil phase includes: (a) at least one selected from the group consisting of (a1) an alcohol of not less than 12 carbon atoms and (a2) a C-C-carboxylic acid, a distillation residue; (d) a component including (d1) a polyglyceryl ester and (d2) a C-Calkyl behenate, wherein the component (d) accounts for 1-80% by weight of the oil phase of the emulsion.

Antifoaming agents for the paper industry, based on oil in water emulsions

A finely divided, cationic or amphoteric, aqueous polymer dispersion which is obtainable by emulsion polymerization of ethylenically unsaturated monomers in the presence of a cationic or amphoteric protective colloid, wherein first the cationic or amphoteric protective colloid is prepared by polymerizing a monomer blend in the presence of at least one first polymerization initiator in an organic solvent, and is carried out in a pressurized reactor at a pressure of at least 1720 kPa and at a temperature of at least 150&#xb0; C., which monomer blend comprises at least one ethylenically unsaturated monomer carrying an amine group, to provide a resin, then combining the resin, with an acid and water, to form the cationic or amphoteric protective colloid, thereafter carrying out an emulsion polymerization by introducing a monomer mixture into an aqueous medium containing said cationic or amphoteric protective colloid and at least one second polymerization initiator, wherein said monomer mixture comprises at least one ethylenically unsaturated water insoluble monomer. The composition is useful as a sizing agent for paper.

Finely divided, cationic or amphoteric, aqueous polymer dispersions, process for their preparation, their use, cationic or amphoteric protective colloids and their preparation

AKD cellulosic composition obtainable by flowing a stream of a cellulosic suspension through a shearing device and in which a molten alkyl ketene dimer (AKD) is metered in to the stream of cellulosic suspension in or prior to the shearing device. The AKD cellulosic composition is particularly suitable in the manufacture of sized paper and paperboard.

AKD composition and manufacture of paper and paperboard

A finely divided, starch-containing polymer dispersion which is obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, wherein (a) from 0 to less than 40% by weight of at least one optionally substituted styrene, (b) from greater than 60 to 100% by weight of at least one C-C-alkyl acrylate and/or C-C-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, are used as the ethylenically unsaturated monomers, the sum (a)+(b)+(c) being 100% and being based on the active monomer content and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mof from 1000 to 65 000 g/mol, based on the total weight of solids content of components (a)+(b)+(c)+(d), are used as the starch, and the polymerization being carried out in the presence of at least 0.01% by weight, based on the monomers used, of at least one terpene containing chain-transfer agent, and in which the polymer dispersion optionally comprises an aluminum compound. The use of the finely divided, starch-containing polymer dispersions as sizes for paper, board and cardboard is also claimed.

Finely divided, starch-containing polymer dispersions, processes for their preparation and use as sizes in papermaking

A finely divided, cationic, aqueous polymer dispersion, obtained by (I) solution polymerizing a first mixture containing (a) 15-40% by weight of a mixture of (a1) a (meth)acrylate and (a2) a (meth)acrylamide, (b) 40-85% by weight of styrene, (c) 0.5-5% by weight of an ethylenically unsaturated monomer, and (d) 0-20% by weight of a nonionic, ethylenically unsaturated monomer differing from (b); (II) adding water; and (III) emulsion polymerizing a second monomer mixture containing (i) 0-29% by weight of styrene, (ii) 50-100% by weight of a C- to C-(meth)acrylate, (iii) 0-30% by weight of a vinyl ester of a C-C-carboxylic acid, and (iv) 0-30% by weight of a nonionic ethylenically unsaturated monomer differing from (i), (ii), and (iii), wherein at least one of the solution and emulsion polymerizing are performed in the presence of 0-10% by weight of a regulator.

Fine-particle, cationic, aqueous polymer dispersions, method for the production thereof, and use thereof

Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch,

Finely divided starch-containing polymer dispersions, method for the production thereof and use thereof as sizing agent in paper manufacturing

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Kirchardt, Germany

Holger Kern