Sud-chemie Ag

Byk-chemie Gmbh

Byk USA Inc.

Byk Additives, Inc.

Sued-chemie Ag

Helmut Coutelle

Klaus Dziwok

Robert G Briell

Tyler Nash

Robert Briell

Norbert Schall

Alan Lawrence Steinmetz

Wolfgang Heininger

Inge Krämer

Friedrich Ruf

Stefan Dick

Thadeus Schauer

Wolfgang Buckl

Heinz Greisiger

Hubert Schiessling

Mark Entenmann

Robert Warth

Markus Möller

Sabine Huth

Wolfgang Simon

Joachim Hlavatsch

Hartmann Schott

Markus Moller

The invention relates to the use of at least one mixed mineral organoclay rheology additive in a liquid composition comprising at least one epoxy resin, the additive comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, and separating the produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.

Process of manufacturing thickeners and the use of thus produced thickeners in high-viscosity epoxy resin formulations

The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, and separating the thus produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.

Process of manufacturing thickeners and the use of thus produced thickeners in high-viscosity unsaturated polyester containing formulations

The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, separating the thus produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium, in which the aqueous hormite clay slurry (a) being formed by (i.1) dispersing a fraction of one or more hormite clays selected from the group of sepiolites and palygorskites in an aqueous medium to form a dispersion, and the aqueous smectite clay slurry (b) being formed by (ii.1) dispersing a fraction of one or more smectite clays in an aqueous medium to form a dispersion, and in that the weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry (c), and subjecting the dispersions formed in (i.1) and (ii.1) to high speed fluid shear before carrying out step iii. and/or after having carried out step and wherein the fraction of one or more hormite clays employed in the formation of the aqueous hormite clay slurry (a) has an integral breadth B defined according of the reflection with Miller indices (110) of less than 0.800 scan units in an X-ray powder pattern recorded on an oriented glycolated sample of the hormite clay fraction using Cu-K-radiation, in a liquid composition comprising at least one unsaturated polyester. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.

Process of manufacturing thickeners and use of thus produced thickeners in high-viscosity unsaturated polyester containing formulations

The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, in which the aqueous hormite clay slurry (a) being formed by dispersing a fraction of one or more hormite clays selected from the group of sepiolites and palygorskites in an aqueous medium to form a dispersion, and whereby the hormite clay fraction employed contains less than 3.0% by weight of AlO, less than 1.0% by weight of FeO, and less than 3.5% by weight of the combination of AlOand FeO; and the aqueous smectite clay slurry (b) being formed by dispersing a fraction of one or more smectite clays in an aqueous medium to form a dispersion, and in that the weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry (c); and subjecting the hormite clay slurry (a) and the smectite clay slurry (b) to high speed fluid shear before combining both slurries and/or after having both slurries combined and wherein the one or more hormite clays employed in the formation of the aqueous hormite clay slurry (a) exhibit a methylene blue exchange capacity below 20 mmol methylene blue per 100 g of the one or more hormite clays in dry state and whereby the hormite clay fraction employed in the formation of the aqueous hormite clay slurry (a) shows an integral breadth B=(net area of reflection)/(net height of reflection) of the (110) reflection in an X-ray powder pattern recorded on an oriented glycolated sample of the hormite clay fraction using CuK-radiation of less than 0.800 scan units, in a liquid composition. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.

Process of manufacturing thickeners and use of thus produced thickeners in high-viscosity non aqueous formulations

A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (air-dried) to 100 mL water, and by a fineness of maximum 5 wt. % &#x3e;40 &#x3bc;m and maximum 20% &#x3e;20 &#x3bc;m, as dry sieve residue.

Swellable phyllosilicates

A description is given of water-soluble aminoplast ether copolymers of the following structural type: wherein Z is a glycoluril central unit, B is a radical of an essentially water-insoluble polymer and R1 is a radical of a hydrophilic organic compound. The ratio R1:B is selected within a range of about 1.5 to 4:1 and the overall mass of the water-soluble aminoplast ether copolymer is from about 2000 to 50 000 g/mol such that the copolymer is soluble in water and may be used as a dispersant for e.g. pigments in polar solvents, e.g. water.

Copolymers containing aminoplast units and use thereof as a dispersing agent or stabilizers

Surface-modified fillers are described characterized by the fact that the fillers represent reactive inorganic fillers and the modifying agent represents an amphiphilic aminoplastic-ether polymer or copolymer of the structural typein which:

Use of amphiphilic polymers or copolymers for surface modification of reactive inorganic fillers

A supplementing agent for mineral binder systems is disclosed, especially for the construction industry, containing at least 1 finely divided, swellable layer silicate and possible at least 1 other additive, the proportion of the swellable layer silicate being more than 60 wt. % and the swelling volume of the layer silicate being around 5-50 ml, in terms of a suspension of 2 g layer silicate in 100 ml water.

Supplementary agent for mineral binder systems

A thickening agent which is based on at least one synthetic phyllosilicate which contains at least one additive from the group of organic phosphorus compounds comprising the following:

Thickening agent based on at least one synthetic phyllosicate

A coating pigment for coating printing media, especially paper and cardboard, is made with at least one swellable layer silicate which can be fixed on the printing medium essentially without binders, where the amount of swellable layer silicate is at least 30 weight percent and the swelling volume of the coating pigment is 5 to 30 ml, based on suspension of 2 g coating pigment in 100 ml water. A water-based coating which contains such a coating pigment and a printing medium that is coated on one or both sides with the coating pigment or coating are also described. The deinkability of printed printing media coated with the coating pigment is improved.

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Freising, Germany

Helmut Coutelle