Omya International Ag

Omya Development Ag

Daniel Edward Gerard

Patrick A C Gane

Joachim Schoelkopf

Joachim Schölkopf

Patrick A Gane

Samuel Rentsch

Daniel Gantenbein

Maxim Puchkov

Jörg Huwyler

Simon Urwyler

Matthias Welker

Michael Skovby

Joachim Glaubitz

Martine Poffet

Tanja Budde

Carolina Diaz Quijano

Dennis Werner

Martina Elisabeth Knupfer

Fritz Lehner

Veronika Anna Eberle

Rainer Alles

Joachim Scholkopf

Patrick Arthur Gane

Matthias Buri

Hans-Georg Hartan

Hans-Joachim Weitzel

Vesa Kukkamo

Leonie Wagner-Hattler

Peter Hess

Pascal Jäggi

Tanja Stirnimann

Lassi Karvonen

Maxim Puckhov

Hans- Georg Hartan

Patrick Arthur Charles Gane

Patrick AC Gane

Jorg Huwyler

The present invention relates to a process for producing an aqueous suspension of surface-reacted calcium salt particles by mixing a calcium salt excluding monocalcium phosphate and dicalcium phosphate, a calcium phosphate selected from monocalcium phosphate and/or dicalcium phosphate, with water, and grinding the obtained aqueous suspension at a pH value of at least 4.2 to form an aqueous suspension of surface-reacted calcium salt particles.

Production of surface-reacted calcium salts by grinding induced conversion

The present invention relates to a process for producing a surface-reacted calcium carbonate, wherein a calcium carbonate-comprising material is treated with at least one inorganic acid and carbon dioxide in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate, wherein the at least one water-soluble, inorganic magnesium salt is added before, during and/or after the treatment step. Furthermore, the present invention relates to a surface-reacted calcium carbonate obtained from said process and its use.

Process for preparing surface-reacted calcium carbonate

A surface-reacted calcium carbonate is described. In embodiments, the surface-reacted calcium carbonate is obtained by a process comprising treating a calcium carbonate-comprising material with at least one HOion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate.

Surface-reacted calcium carbonate with functional cations

A process of producing a surface-reacted calcium carbonate is described. In embodiments, a calcium carbonate-comprising material is treated with at least one HOion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate. A surface-reacted calcium carbonate obtained by said process and its use are also described.

The present invention relates to a method for the production of granules comprising surface-reacted calcium carbonate, as well as to the granules obtained thereby and their use.

Method for the production of granules comprising surface-reacted calcium carbonate

The present invention is directed to a process for producing an aqueous suspension of precipitated calcium carbonate, wherein a milk of lime is prepared by mixing water, a calcium oxide containing material, and a precipitation enhancer, and subsequently, the milk of lime is carbonated to form an aqueous suspension of precipitated calcium carbonate.

PCC with reduced portlandite content

The present invention relates to a process for producing surface-reacted calcium carbonate, wherein a calcium carbonate-comprising material is treated with phosphoric acid, carbon dioxide, and specific dicarboxylic acids, in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate. Furthermore, the present invention relates to surface-reacted calcium carbonate obtained by said process and its use.

The present invention relates to at least one surface-reacted calcium carbonate-comprising mineral material and/or a surface-reacted precipitated calcium carbonate that is/are coated with at least one anionic polymer to obtain a surface-coated calcium carbonate-comprising material as well as to a process for the preparation of the surface-coated calcium carbonate-comprising material. Furthermore, the present invention relates to a process for the purification of water and/or dewatering of sludges and/or suspended sediments and to the use of a surface-coated calcium carbonate-comprising material for water purification and/or dewatering of sludges and/or suspended sediments.

Surface-coated calcium carbonate-containing material and process for the purification of water

The present invention relates to an abrasive cleaning composition comprising at least 6 wt.-%, based on the total weight of the composition, of a surface-reacted calcium carbonate as an abrasive material, wherein the surface-reacted calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.

Abrasive cleaning composition

The present invention provides for method of improving flowability and loose bulk density of functionalized natural- and/or synthetic calcium carbonate comprising material, to the use of such improved material in ready to use granules and thereof produced dispersible dosage forms.

Dispersible dosage form

The present invention relates to surface-reacted calcium carbonate, wherein the surface-reacted calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and at least one acid. Said calcium carbonate and oral compositions containing the same can be used as a medicament, and especially in treating dentine hypersensitivity.

Surface-reacted calcium carbonate for desensitizing teeth

The present invention relates to a method for the production of granules comprising surface-reacted calcium carbonate by a) providing surface-reacted calcium carbonate, b) saturating the surface-reacted calcium carbonate with one or more liquids; c) providing one or more binder; d) combining the liquid saturated surface-reacted calcium carbonate with the one or more binder under agitation in an agitation device; e) removing the liquid from the mixture of step d); as well as to the granules comprising surface-reacted calcium carbonate obtained by this method.

The present invention relates to a process for the preparation of a surface-reacted precipitated calcium carbonate (PCC) pigment having an insoluble, at least partially crystalline calcium salt on its surface. In the process of the present invention, a PCC containing pigment is contacted with HOions and a solubilized anion in an aqueous medium in the presence of excess solubilized calcium ions to form the surface-reacted PCC having an insoluble, at least partially crystalline calcium salt of the anion formed on its surface.

Surface-reacted precipitated calcium carbonate, process to make same, and uses thereof

The invention relates to a process for the purification of water and/or dewatering of sludges and/or sediments, to the use of a combination of a phyllosilicate and a surface-treated calcium carbonate for water purification and/or dewatering of sludges and/or sediments, as well as to the use of a combination of a phyllosilicate and a surface-treated calcium carbonate for reducing the amount of polymeric flocculation aids in water and/or sludges and/or sediments and to a composite material comprising at least one surface-treated calcium carbonate, at least one phyllosilicate and impurities originated from different sources obtainable by said process.

Growing community of inventors

Basel, Switzerland

Daniel Edward Gerard