Polishing pad with abrasive particles in a non-porous binder

Details Polishing pad with abrasive particles in a non-porous binder Polishing pad with abrasive particles in a non-porous binder

1994-09-19

1996-10-22

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428141, 428137, 428323, 428332, 428338, 428325, 428157, 428167, 428172, 428169, 428195, 428206, 428208, 428210, 428408, 4289088, 51298, 51293, 51307, 51309, 451527, 451529, 451530, 451540, 451543, 451548, 451353, 451359, B24D 700

Patent

active

055675034

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, comprising diamond or cubic boron nitride, 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.

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patent: 5197249 (1993-03-01), Wiand
patent: 5243790 (1993-09-01), Gagne

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