B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 3/00 (2006.01) C01F 7/54 (2006.01)
Patent
CA 2601019
The invention relates to an abrasive means with abrasive-active fillers. The abrasive means is comprised, in general, of a support, abrasive grit and of a binder system. In order to improve the abrasive action and the serviceable life of the abrasive means, the binding agent system contains synthetic alkali metal fluoroaluminates and/or alkaline earth metal fluoroaluminates, in particular, alkali metal tetrafluoroaluminate, preferably potassium tetrafluoroaluminate, together with at least one additional abrasive-active filler. The invention also relates to the use of alkali metal fluoroaluminates and/or alkaline earth metal fluoroaluminates, preferably potassium tetrafluoroaluminate and/or dipotassium pentafluoroaluminate for stabilizing polymers against change in color by the action of heat. The invention further relates to a mixture consisting of potassium tetrafluoroaluminate and dipotassium pentafluoroaluminate and of other abrasive-active fillers in a weight ratio of 4:2 to 2:4.
La présente invention concerne un agent abrasif comprenant des matières de charge abrasives. L'agent abrasif comprend de manière générale une couche sous-jacente, des grains abrasifs et un système de liant. Pour améliorer l'abrasion et la longévité de l'agent abrasif, le système de liant contient selon l'invention des fluoroaluminates de métal alcalin et/ou de métal alcalino-terreux, en particulier du tétrafluoroaluminate de métal alcalin, de préférence du tétrafluoroaluminate de potassium, ainsi qu'au moins une autre matière de charge abrasive.
Pakusch Axel
Pischtiak Anja
Schwarze Thomas
Robic
Solvay Fluor Gmbh
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