Biotage Ab

Saint-gobain Ecophon Ab

Celanese Emulsion Norden Ab

Ola Karlsson

Ecevit Yilmaz

Johan Billing

Torbjörn Persson

Yan Liu

Jan-Erik Jonsson

Rasmus Ekberg

Tommy Månsson

Mikael Kervall

An acoustical geopolymer panel element includes a layer including a fibre component and a geopolymer binder made from a mixture including ground mineral wool, and an additional layer including mineral wool. The layer including a fibre component and a geopolymer binder has a density in the range of 20-400 kg/m, a porosity in the range of 0.75-0.99 and a thickness in the range of 5-75 mm. The ground mineral wool may be ground glass or stone wool and the fibre component may be a wood fibre component, a polymer fibre component and/or a mineral wool component. Further, a geopolymer mixture is provided upon recycling mineral wool which is ground to powder and mixed with an alkali activator component. Additionally, a method for producing acoustical geopolymer panel elements includes grinding elements including mineral wool for provision of a powder component.

Method for recycling mineral wool, a method for production of acoustical panel elements and such an acoustical panel element

An embodiment of the present invention relates to a composite material including a hydrophobic porous organic polymer bead. An embodiment further relates to a method of obtaining the composite material as well as the use thereof.

Composite material

The present invention concerns a waterborne copolymer dispersion comprising at least one alkenyl functional dendritic polymer being copolymerized to the polymer backbone of at least one homo or copolymer obtainable by polymerization, such as emulsion polymerization, in an aqueous medium of at least one at least one polymerizable allyl, vinyl, maleic or diene monomer. The dendritic polymer is built up from a dendritic core polymer and at least one alkenyl functional compound bonded to the core polymer. In a further aspect the present invention concerns the use of said copolymer dispersion.

Waterborne copolymer dispersion

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Lund, Sweden

Ola Karlsson