C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/107 (2006.01) C01B 21/082 (2006.01) C04B 35/111 (2006.01) C04B 35/117 (2006.01) C04B 35/581 (2006.01) C04B 35/582 (2006.01) C04B 35/653 (2006.01) C09K 3/14 (2006.01)
Patent
CA 2477162
The invention relates to abrasive particles based on aluminium oxynitride, with an equivalent weight content of AlN, measured on a pseudo-binary Al¿2?O¿3?-AlN diagram of between 2.5 % and 7.5 % inclusive, preferably 3 to 6 % and a structure comprising for the larger part AlON ~ and AlON .gamma.. Said abrasive particles are particularly of use in the production of grinding wheels, abrasive papers and cloths, polishing pastes and spraying abrasives.
L'invention a pour objet des grains abrasifs à base d'oxynitrure d'aluminium, avec une teneure équivalente en A1N, mesurée sur un diagramme pseudo-binaire A12O3-A1N, comprise entre 2,5% et 7,5% en poids, et de préférence entre 3 et 6% et une structure constituée majoritairement d'A1ON ~' et d'A1ON .gamma.. Ces grains abrasifs sont utilisés notamment pour la fabrication de meules de rectification, de toiles et papiers abrasifs, de pâte à polir et d'abrasifs projetés.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Pem Abrasifs-Refractaires
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