Basf Aktiengesellschaft

Basf Se Corporation

Solenis Technologies, L.p.

Other

Omya International Ag

Solenis Technologies Cayman, L.p.

Christoph Hamers

Reinhold J Leyrer

Anton Esser

Holger Schoepke

Juergen Schmidt-Thuemmes

Holger Kern

Christopher Alan Gray

Oliver Birkert

Ralph Isermann

Frans De Bruyn

Dieter Hannu Boeckh

Rainer Blum

Karl Kolter

Helmut Ritter

Roland Ettl

Hans-Joachim Haehnle

Frank Dietsche

Markus Schmid

Zheng Tan

Wolfgang Gaschler

Norbert Mahr

Carmen-Elena Cimpeanu

Klaus Lorenz

Marc Schroeder

Kati Schmidt

Ulrich Riebeling

Kenneth Barrett

Ralf Hemel

Andreas Brockmeyer

Martin Tietz

Nathalie Bouillo

Norbert Schall

Norbert Willenbacher

Petra Arnold

Klaus Moeller

Kai Pahnke

Klaus Möller

Martin Schachtl

Hartmut Loewen

Matthew Buchan

Reinhard Haffke

Norbert Gispert

Dieter Meck

Konstantino Karanikas

Guido Rensen

Uwe Albrecht

Uwe Froehlich

Erich Krumbacher

Jürgen Schmidt-Thümmes

Klaus Moller

Leonardus Guido Antonius Rensen

A method for producing dried multilayer paper is provided comprising dewatering a first aqueous fibrous suspension, thereby creating a first fibrous web; dewatering a second aqueous fibrous suspension, thereby creating a second fibrous web; spraying one or more of a first fibrous web and a second fibrous web with a spray solution or spray suspension, thereby producing at least one sprayed fibrous web; assembling the first fibrous web with the second fibrous web; dehydrating the resulting layer compound by pressing; then dehydrating by supplying heat, which creates the dried multilayer paper. The spray solution or spray suspension contains water and at least one water-soluble polymer P. The polymer P is obtained by polymerizing: 40 to 85 mol % of a monomer of Formula I in which R=H or C-C-Alkyl; and 15 to 60 mol % of one or more ethylenically unsaturated monomers.

Method for producing multi-layer paper

A method to produce dried single-layer or multi-layer paper is disclosed. The method comprises, for a single-layer paper, preparing and spraying a partially dehydrated first fibrous web with a spray solution or suspension to give a sprayed partially dehydrated first fibrous web, and dehydrating the sprayed partially dehydrated first fibrous web by applying heat to form a dried single-layer paper; or, for a multi-layer paper, preparing and spraying a partially dehydrated layer compound with a spray solution or suspension to form a sprayed layer compound, and dehydrating the sprayed layer compound by applying heat to form a dried multi-layer paper. The spray solution or suspension comprises water and at least one water-soluble polymer P, which is obtained by polymerizing: (i) a monomer of formula HCCHNHC(0)R, where Ris H or C-C- alkyl; and (ii) one or more ethylenically unsaturated monomers different from monomer (i).

Method for producing single-layer or multi-layer paper

Embodiments disclosed herein provide enzymatic formulations comprising a polypeptide having amylase activity for producing a paper product. Also provided are aqueous surface treatment compositions for paper and board comprising degraded starch. Further provided are methods for producing paper and board using the aqueous surface treatment composition, and to corrugated boards produced from this paper.

Aqueous surface treatment composition for paper and board

A method for the production of paper or cardboard is provide comprising the following steps: 

Method for manufacturing paper or cardboard

The present invention relates to a process for producing corrugated fiberboard from plies of paper which each have a grammage of 70 to 200 g/mand of which at least one ply of paper is obtained by a process comprising the addition of 

Method for producing corrugated cardboard

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, 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 process for the production of singly and/or multiply coated paper and/or board, except for photographic papers and self-adhesive labeling papers, which are particularly suitable for printing, packaging and inscription, is described. The substrate, for example base paper or board, is coated once or several times with a free-falling liquid curtain, the coating liquid having in particular an extensional viscosity of from 1 to 1000 Pa&#xb7;s at a Hencky strain of from 1 to 15.

Method for the production of single-and/or multiple-coated substrates

Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.

Polymer-pigment hybrids for use in papermaking

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

An aqueous dispersion of a polymer, obtainable by emulsion polymerization of compounds (monomers) having unsaturated radicals in the presence of at least two different polymerization regulators A) and B), wherein

Low-blister paper coating slips

Aqueous polymer dispersions which are obtainable by free radical copolymerization of

Aqueous polymer dispersions, based on copolymers of vinyl aromatics and butadiene, method for their production and their use as sizing agents for paper

Described are a method of killing microorganisms in aqueous industrial systems or products for industrial applications based on water by adding from 0.001 to 5% by weight of a water-soluble or water-dispersible polymer containing from 30 to 100 mol % of styrenesulfonic acid, from 0 to 40 mol % of an N-vinyllactam and/or N-vinylamine, and from 0 to 30 mol % of further free-radically polymerizable monomers as biocidal additive, and a method of protecting articles by applying an antimicrobial aqueous composition comprising such an additive.

Killing microorganisms

The present invention relates to a laser gain medium comprising at least one active species adapted to be stimulated to emit laser light within a predetermined wavelength range and optical feedback means defining a resonator for said laser light. The feedback means comprise at least one substantially solid cholesteric layer having a substantially planar texture exhibiting selective reflection of light defined by a reflection band tuned to said predetermined wavelength range.

Laser gain medium for solid state dye lasers

Optical display elements comprising a layer made from a deformable material (matrix) and from discrete polymer particles whose distribution in the matrix follows a defined spatial lattice structure.

Optical display elements based on aqueous polymer dispersions

Growing community of inventors

Ludwigshafen, Germany

Christoph Hamers