US5849052A — Abrasive article having a bond system comprising …

Claim 1

Independent Claim 82 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 2

Dependent Claim 82 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 3

Dependent Claim 95 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 4

Dependent Claim 95 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 5

Dependent Claim 87 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 6

Dependent Claim 87 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 7

Dependent Claim 109 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 8

Dependent Claim 109 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 9

Dependent Claim 169 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 10

Dependent Claim 169 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 11

Dependent Claim 48 words

An abrasive filament in accordance with claim 5 wherein the polysiloxane is a polydimethylsiloxane of formula (B): ##STR14## wherein R and R' 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.

Claim 12

Dependent Claim 25 words

An abrasive filament in accordance with claim 5 wherein at least one of the first and second hardened organic polymeric materials comprises a thermoplastic elastomer.

Claim 13

Dependent Claim 34 words

An abrasive filament in accordance with claim 7 wherein the thermoplastic elastomer is selected from the group consisting of segmented thermoplastic elastomers, ionomeric thermoplastic elastomers, and blends of segmented thermoplastic elastomers and thermoplastic polymers.

Claim 14

Dependent Claim 29 words

An abrasive filament in accordance with claim 8 wherein the segmented thermoplastic elastomer is selected from the group consisting of segmented polyesters, segmented polyurethanes, segmented polyamides, and mixtures thereof.

Claim 15

Dependent Claim 30 words

An abrasive filament in accordance with claim 5 wherein the abrasive particles are selected from the group consisting of individual abrasive grains, agglomerates of individual abrasive grains, and mixtures thereof.

Claim 16

Dependent Claim 45 words

An abrasive filament in accordance with claim 10 wherein the individual abrasive grains are selected from the group consisting of silicon carbide, aluminum oxide, alumina zirconia, cubic boron nitride, garnet, pumice, sand, emery, mica, quartz, diamond, boron carbide, alpha alumina-based ceramic material, and combinations thereof.

Claim 17

Dependent Claim 58 words

An abrasive filament in accordance with claim 10, wherein the abrasive particles are selected from the group consisting of fused aluminum oxide, silicon carbide, alpha alumina-based ceramic material, and the abrasive particles are present in the thermoplastic elastomer at a weight percentage ranging from about 0.1 to about 65 weight percent based on weight of the thermoplastic elastomer.

Claim 18

Dependent Claim 63 words

An abrasive filament in accordance with claim 5, wherein the first elongate filament component is a core having a core cross-sectional area, and the second elongate filament component is a sheath having a sheath cross-sectional area, the cross-sectional area of the sheath and the cross-sectional area of the core being defined by a plane perpendicular to a major axis of the abrasive filament.

Claim 19

Dependent Claim 44 words

An abrasive filament in accordance with claim 13, wherein only one of the core or sheath has abrasive particles therein, and the ratio of the cross-sectional area of the sheath to the cross-sectional area of the core ranges from about 1:1 to about 20:1.

Claim 20

Dependent Claim 25 words

An abrasive filament in accordance with claim 5 wherein at least one of the first and second organic polymeric materials further includes a coupling agent.

Claim 21

Dependent Claim 15 words

An abrasive filament in accordance with claim 15 wherein the coupling agent is a titanate.

Claim 22

Dependent Claim 25 words

An abrasive filament in accordance with claim 7, wherein the thermoplastic elastomer has a Shore D durometer hardness ranging from about 30 to about 90.

Claim 23

Dependent Claim 48 words

An abrasive filament in accordance with claim 13, wherein the abrasive filament has a cross-sectional area defined by a plane perpendicular to a major axis of the abrasive filament and the cross-sectional area of the sheath is 40% or more of the cross-sectional area of the abrasive filament.

Claim 24

Dependent Claim 36 words

An abrasive filament in accordance with claim 5 wherein the polysiloxane is present at a weight percent, based on a weight percent of the first and second organic polymeric materials, ranging from at least about 1%.

Claim 25

Dependent Claim 38 words

An abrasive filament in accordance with claim 5 wherein the polysiloxane is present at a weight percent, based on a weight percent of the first and second organic polymeric materials, ranging from at least about 2 to 10%.

Claim 26

Dependent Claim 91 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 27

Dependent Claim 91 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 28

Dependent Claim 49 words

A composite abrasive filament in accordance with claim 21 wherein the polysiloxane is a polydimethylsiloxane of formula (B): ##STR16## wherein R and R' 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.

Claim 29

Dependent Claim 61 words

A composite abrasive filament in accordance with claim 21 wherein the preformed core is at least one wire or fiber, said preformed core is selected from the group consisting of metal wire, natural fiber, organic synthetic fiber, inorganic synthetic fiber, and combinations thereof and wherein the inorganic synthetic fiber is selected from the group consisting of glass fiber and ceramic fiber.

Claim 30

Dependent Claim 19 words

A composite abrasive filament in accordance with claim 21 wherein the hardened organic polymeric material comprises a thermoplastic elastomer.

Claim 31

Dependent Claim 36 words

A composite abrasive filament in accordance with claim 24 wherein the thermoplastic elastomer is selected from the group consisting of segmented thermoplastic elastomers, ionomeric thermoplastic elastomers, blends of thermoplastic elastomers and thermoplastic polymers, and mixtures thereof.

Claim 32

Dependent Claim 31 words

A composite abrasive filament in accordance with claim 25 wherein the segmented thermoplastic elastomers comprise polymers selected from the group consisting of segmented polyesters, segmented polyurethanes, segmented polyamides, and mixtures thereof.

Claim 33

Dependent Claim 32 words

A composite abrasive filament in accordance with claim 21 wherein the abrasive particles are selected from the group consisting of individual abrasive grains, and agglomerates of individual abrasive grains, and mixtures thereof.

Claim 34

Dependent Claim 47 words

A composite abrasive filament in accordance with claim 27 wherein the individual abrasive grains are selected from the group consisting of silicon carbide, fused aluminum oxide, alumina zirconia, cubic boron nitride, garnet, pumice, sand, emery, mica, quartz, diamond, boron carbide, alpha alumina-based ceramic material, and combinations thereof.

Claim 35

Dependent Claim 44 words

A composite abrasive filament in accordance with claim 27, wherein the abrasive grains are selected from the group consisting of fused aluminum oxide, silicon carbide, and alpha alumina-based ceramic material, and comprise from about 01. to about 65 weight percent of the hardened material.

Claim 36

Dependent Claim 39 words

A composite abrasive filament in accordance with claim 23, wherein the preformed core is selected from the group consisting of 1×3, 1×7, and 1×19 stranded metal wire, the preformed core having a diameter of at least about 0.01 mm.

Claim 37

Dependent Claim 26 words

A composite abrasive filament in accordance with claim 24, wherein the thermoplastic elastomer has a Shore D durometer hardness ranging from about 30 to about 90.

Claim 38

Dependent Claim 37 words

A composite abrasive filament in accordance with claim 21, wherein the composite abrasive filament has a diameter ranging from about 0.75 mm to about 1.5 mm and an ultimate breaking force of at least about 2.0 kg.

Claim 39

Dependent Claim 68 words

A composite abrasive filament in accordance with claim 21, wherein the hardened material has a cross-sectional area and the preformed core has a cross-sectional area and the ratio of the cross-sectional area of the hardened material to the cross-sectional area of the preformed core ranges from about 0.5:1 to about 300:1, the cross-sectional areas defined by a plane perpendicular to a major axis of the composite abrasive filament.

Claim 40

Dependent Claim 61 words

A composite abrasive filament in accordance with claim 21, wherein the hardened material and the composite abrasive filament each have a cross-sectional area and the cross-sectional area of the hardened material is at least 40% of the cross-sectional area of the composite abrasive filament, the cross-sectional areas defined by a plane perpendicular to a major axis of the composite abrasive filament.

Claim 41

Dependent Claim 28 words

A composite abrasive filament in accordance with claim 21, wherein the preformed core comprises at least one continuous monofilament having a diameter of at least about 0.2 mm.

Claim 42

Dependent Claim 45 words

A composite abrasive filament in accordance with claim 21, wherein the preformed core comprises a plurality of substantially parallel wires or fibers, said preformed core is selected from the group consisting of metal wire, inorganic synthetic fibers, natural fibers, organic synthetic fibers, and combinations thereof.

Claim 43

Dependent Claim 28 words

A composite abrasive filament in accordance with claim 36, wherein the metal is selected from the group consisting of stainless steels, plain carbon steels, copper, and combinations thereof.

Claim 44

Dependent Claim 34 words

A composite abrasive filament in accordance with claim 21 wherein the polysiloxane is present at a weight percent, based on a weight percent of the organic polymeric material, ranging from at least about 1%.

Claim 45

Dependent Claim 36 words

A composite abrasive filament in accordance with claim 21 wherein the polysiloxane is present at a weight percent, based on a weight percent of the organic polymeric material, ranging from at least about 2 to 10%.

Claim 46

Dependent Claim 95 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 47

Dependent Claim 95 words

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 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 48

Dependent Claim 67 words

A monofilament comprising a hardened organic polymeric material, a plurality of abrasive particles, and a polysiloxane of formula (A): ##STR18## wherein R, R', R 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Claim 49

Dependent Claim 67 words

A monofilament comprising a hardened organic polymeric material, a plurality of abrasive particles, and a polysiloxane of formula (A): ##STR18## wherein R, R', R 1 , R 2 , R 3 , R 4 , R 5 , and R 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.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-12-14	2002-06-15	2002-12-15	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-12-14	2006-06-15	2006-12-15	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-12-14	2010-06-15	2010-12-15	$7700.00	Window Closed / Lapsed

Abrasive article having a bond system comprising a polysiloxane

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