B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 3/20 (2006.01) B24B 7/22 (2006.01) B24D 3/30 (2006.01) B24D 7/06 (2006.01)
Patent
CA 2091660
ABSTRACT A polishing pad comprises a carrier and layer of a non-porous thermoplastic polymer secured to a surface thereof and containing a mass of discrete abrasive particles uniformly dispersed therein. The abrasive particles have a particle size of up to 500 microns and are present in the layer in a concentration of up to 30 volume percent. The layer presents an abrasive polishing surface. The abrasive layer may also comprise a plurality of spaced strips secured to a surface of the carrier and each strip presents an abrasive polishing surface.
Sexton John Stirling
Wright Derek Norman
de Beers Industrial Diamond Division (proprietary) Limited
Gowling Lafleur Henderson Llp
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