Kwh Mirka Ltd

Mirka Ltd.

Mirka Oy

Upm-Kymmene Corporation

Kwh Mirka Ab

Crisolteq Oy

Omg Kokkla Chemicals Oy

Mats Sundell

Hans Hede

Jan Grön

Niina Kyynäräinen

Nicolas Schumacher

Göran Höglund

Markus Kass

Beatriz Meana-Esteban

Antti Laukkanen

Goran Hoglund

Stefan Lindvall

Christer Kavander

Beatriz Esteban

Kenneth Ekman

Manne Carla

Virginie Suhonen

Joni Hautojärvi

Tomas Sjöberg

Maria Sundqvist

A method of abrading the surface of a workpiece is disclosed. The method includes providing a workpiece, an abrading apparatus with a backing pad configured to receive an abrading plate, an abrading plate attachable to the backing pad and a slurry including abrasive grains; attaching the abrading plate to the backing pad; providing the slurry including abrasive grains between the abrading plate and the surface of the workpiece; and operating the abrading apparatus to abrade the surface of the workpiece. Therein, the abrading plate includes a workpiece-facing layer, which workpiece-facing layer faces the surface of the workpiece and includes a metal or a polymer, and the abrasive grains have a hardness on the Mohs scale of greater than 5.

Abrading with an abrading plate

An abrasive belt is provided which comprises a textile fabric being formed of interconnected yarns, and a coherent abrasive area formed on one side of the textile fabric, wherein the abrasive belt further comprises a plurality of regularly distributed openings in the form of through holes. The abrasive belt allows for a homogenous distribution of the abrasive material and thus an even sanding finish as well as for an appropriate dust removal and appropriate mechanical properties.

Abrasive belt grinding product

An abrasive product having an abrasive surface, a belt of an abrasive product, a roll of an abrasive product and a method for manufacturing an abrasive product. An abrasive product includes a backing and an abrasive surface. The abrasive surface includes at least a first abrasive area and a second abrasive area, wherein abrasive properties of the first abrasive area are different from abrasive properties of the second abrasive area.

Abrasive product and a method for manufacturing such

A method of manufacturing a flexible grinding product comprises the steps: a) preparing an open cloth of knitted or woven fabric; b) applying a coating to one surface of the cloth, wherein the coated surface of the cloth has one or more flat portions; c) applying a grinding agent to the coated surface of the cloth. Further, a flexible grinding product has an open cloth, wherein a surface of the cloth is provided with a coating such that the coated surface has one or more flat areas which are at least partially provided with a grinding agent.

Flexible grinding product with flattened surface and method for manufacturing the same

Abrasive material

The invention relates to obtaining an abrasive product comprising a backing layer and an abrasive layer, wherein the backing layer comprises propylene homopolymer or copolymer.

Method to provide an abrasive product and abrasive products thereof

The invention relates to obtaining an abrasive product comprising a surface with multiple abrasive zones supported by a backing layer. The abrasive zone are surrounded by interconnected channel portions comprising first channel portions with a first transverse dimension tdand second channel portions with a second transverse dimension tdlarger than the first transverse dimension td

Method to provide an abrasive product surface and abrasive products thereof

Composite body comprises nanofibrillar cellulose (NFC) together with abrasive particles (AP). The nanofibrillar cellulose forms a 3-dimensional connecting network for the abrasive particles (AP). The abrasive particles have a hardness above 7 on Mohs scale. The composite body is used for grinding, polishing or cutting.

Composite body and method of manufacturing it

A method is provided for recovering metals from a spent catalyst composition containing an organic contaminant and catalytically active metals on a catalyst support. The metals are leached from the spent catalyst composition by adding under stirring an ionic liquid. The ionic liquid containing the leached metals is separated from the organic contaminant and the catalyst support by adding under stirring an anti-solvent. After removing the organic contaminant and the catalyst support, the leached metals are separated from the ionic liquid for example by selective precipitation, ion exchange, solvent extraction, electrodeposition, chromatographic, or pyrometallurgical methods.

Method for recovering metals from a spent catalyst composition

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Hirvlax, Finland

Mats Sundell