Abrasive article having a bond system comprising a polysiloxane
AssigneeMinnesota Mining and Manufacturing Company
InventorLoren L. Barber, Jr.
Life of this patent
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Abstract
An abrasive article comprising (a) a plurality of abrasive particles and (b) a bond system which adheres the plurality of abrasive particles, the bond system comprising a binder and a polysiloxane of formula (A): ##STR1## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
Claims41
An abrasive article comprising
- (a) a plurality of abrasive particles and
- (b) a bond system which adheres the plurality of abrasive particles, the bond system comprising a binder and a polysiloxane of formula (A):
- ##STR9## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
A coated abrasive comprising
- (a) a backing having a major surface
- (b) a plurality of abrasive particles
- (c) a bond system which adheres the plurality of abrasive particles to the major surface of the backing, the bond system comprising a binder and a polysiloxane of formula (A):
- ##STR10## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
A bonded abrasive article comprising
- (a) a plurality of abrasive particles and
- (b) a bond system which bonds the plurality of abrasive particles into a shaped mass, the bond system comprising a binder and a polysiloxane of formula (A):
- ##STR11## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
A nonwoven abrasive article having at least one major surface and an interior region, the nonwoven abrasive article comprising
- (a) an open lofty web of organic fibers
- (b) a plurality of abrasive particles
- (c) a bond system which adheres the plurality of abrasive particles to the open lofty web, the bond system comprising a binder and a polysiloxane of formula (A):
- ##STR12## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
An abrasive filament comprising:
- (a) a first elongate filament component having a continuous surface throughout its length and being comprised of a first hardened organic polymeric material;
- and
- (b) a second elongate filament component coterminous with the first elongate filament component comprised of a second hardened organic polymeric material in melt fusion adherent contact with the first elongate filament component along the continuous surface, the second hardened organic polymeric material being the same or different than the first hardened organic polymeric material,
- wherein at least one of the first and second hardened organic polymeric materials comprises abrasive particles dispersed and adhered therein and at least one of the first and second hardened organic polymeric materials comprises a polysiloxane of formula (A):
- ##STR13## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
A composite abrasive filament comprising at least one preformed core at least partially coated with a hardened organic polymeric material comprising (a) abrasive particles, the abrasive particles dispersed and adhered in the hardened organic polymeric material, and (b) a polysiloxane of formula (A):
- ##STR15## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
A structured abrasive article comprising a backing having a major surface and a plurality of abrasive composites adhered to the major surface of the backing, each abrasive composite comprising a plurality of abrasive particles and a bond system comprising a binder and a polysiloxane of formula (A):
- ##STR17## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
A monofilament comprising a hardened organic polymeric material, a plurality of abrasive particles, and a polysiloxane of formula (A):
- ##STR18## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
Dependencies are inferred from the claim text.