Composite abrasive wheels

Details Composite abrasive wheels Composite abrasive wheels

C - Chemistry, Metallurgy

08

G

C08G 18/10 (2006.01) B24D 3/28 (2006.01) C08G 18/00 (2006.01) C08G 18/18 (2006.01) C08G 18/58 (2006.01) C08G 18/77 (2006.01)

Patent

CA 2102674

A composite abrasive wheel with improved thermal properties is comprised of a fibrous substrate with abrasive particles adhered thereto by a crosslinked polyurethane binder comprising heterocyclic groups. The heterocyclic structures, such as isocyanurate and/or oxazolidone rings, in the binder system improve the thermal properties required for a tough, durable abrasive wheel.

La présente invention porte sur une meule abrasive en matériau composite comprenant un substrat fibreux sur lequel des particules abrasives sont collées au moyen d'un liant polyuréthane réticulé à groupes hétérocycliques. Les structures hétérocycliques du liant, notamment les noyaux d'isocyanurate et/ou d'oxazolidone, améliorent les propriétés thermiques caractéristiques que doit présenter une meule abrasive résistante et durable.

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