METHOD OF MAKING A COATED ABRASIVE ARTICLE

The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment. 1. A method of making a patterned abrasive layer on a resin coated backing comprising the steps of:providing a production tool having a dispensing surface with cavities, each cavity having a cavity longitudinal axis perpendicular to the dispensing surface and a depth, D, along the cavity longitudinal axis;selecting elongated abrasive particles having a length, L, along a longitudinal particle axis greater than a width, W, along a transverse axis perpendicular to the longitudinal particle axis, wherein the depth, D, of the cavities is between 0.5L to 2L;supplying an excess of the elongated abrasive particles to the dispensing surface such that more elongated abrasive particles are provided than the number of cavities;filling a majority of the cavities in the dispensing surface with an elongated abrasive particle disposed in an individual cavity such that the longitudinal particle axis is parallel to the longitudinal cavity;removing a remaining fraction of the excess elongated abrasive particles not disposed within a cavity after the filling step from the dispensing surface;aligning the resin coated backing with the dispensing surface with the resin layer facing the dispensing surface;transferring the elongated abrasive particles in the cavities to the resin coated backing and attaching the elongated abrasive particles to the resin layer; andremoving the production tool ...

Coated Abrasive Article with Multiplexed Structures of Abrasive Particles and Method of Making

The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment. 1. A coated abrasive article comprising:a backing and an abrasive layer adhered to the backing by a make coat; a patterned abrasive layer of multiplexed abrasive structures,', 'the multiplexed abrasive structures comprising two or more shaped abrasive particles in close proximity to each other; and', 'each multiplexed abrasive structure spaced a predetermined distance from adjacent multiplexed abrasive structures forming the patterned abrasive layer., 'wherein the abrasive layer comprises;'}2. The coated abrasive article of wherein the multiplexed structures comprise from 2 to 10 shaped abrasive particles.3. The coated abrasive article of wherein the multiplexed structures comprise from 2 to 5 shaped abrasive particles.4. The coated abrasive article of wherein the shaped abrasive particles comprise triangular shaped abrasive particles each having a pair of opposing faces and the pair of opposing faces on each of the shaped abrasive particles in the multiplexed abrasive structure are parallel to one another.5. The coated abrasive article of wherein the patterned abrasive layer comprises parallel lines of the multiplexed abrasive structures.6. The coated abrasive article of wherein the patterned abrasive layer comprises parallel lines of the multiplexed abrasive structures.7. The coated abrasive article of wherein the patterned abrasive layer comprises a plurality of ...

Dual tapered shaped abrasive particles

Shaped abrasive particles comprising alpha alumina and having a first side, a second side, a maximum length along a longitudinal axis and a maximum width transverse to the longitudinal axis. The first side comprising a quadrilateral having four edges and four vertices with the quadrilateral selected from the group consisting of a rhombus, a rhomboid, a kite, or a superellipse. The shaped abrasive particles having an aspect ratio of the maximum length divided by the maximum width of 1.3 or greater.

METHOD OF MAKING AN ABRASIVE ARTICLE AND ABRASIVE ARTICLE

A method of making an abrasive article comprises urging a malleable thermosetting melt-flowable composition through openings extending through a porous abrasive member to form an abrasive article precursor; which is heated to form the abrasive article. Multiple abrasive articles may be stacked prior to heating. Methods can be used to fabricate abrasive articles such as grinding wheels and cut-off wheels. 113-. (canceled)14. A method of making an abrasive article , the method comprising steps:a) providing a porous abrasive member having first and second opposed major surfaces, wherein openings extending through the porous abrasive member from the first major surface to the second major surface, wherein the porous abrasive member comprises abrasive particles secured to a porous substrate by at least one binder material;b) urging a malleable thermosetting melt-flowable composition through the openings in the porous abrasive member to form an abrasive article precursor; andc) heating the abrasive article precursor to form the abrasive article, wherein the abrasive article comprises first and second opposed major surfaces, and wherein both of the first and second major surfaces comprise a cross-linked reaction product of the malleable thermosetting melt-flowable composition.15. The method of claim 14 , wherein the malleable melt-flowable composition comprises novolac phenolic resin and furfuryl alcohol.16. The method of claim 14 , wherein the at least one binder material comprises a make layer and a size layer.17. The method of claim 14 , wherein the substrate comprises a woven scrim.18. The method of claim 14 , wherein the substrate comprises a lofty open nonwoven fiber web.19. The method of claim 14 , wherein step b) comprises disposing the malleable thermosetting melt-flowable composition against the first major surface of the abrasive member and passing the malleable thermosetting melt-flowable composition and the abrasive member between a pair of nip rolls.20. A ...

Dual tapered shaped abrasive particles

Shaped abrasive particles are disclosed. The shaped abrasive particles comprise alpha alumina and have a first side, a second side, a maximum length along a longitudinal axis and a maximum width transverse to the longitudinal axis. The first side comprised a quadrilateral having four edges and four vertices with the quadrilateral selected from the group consisting of a rhombus, a rhomboid, a kite, or a superellipse. The shaped abrasive particles have an aspect ratio of the maximum length divided by the maximum width of 1.3 or greater.

Coated abrasive article having rotationally aligned formed ceramic abrasive particles and method of making

A coated abrasive article having a plurality of formed ceramic abrasive particles each having a surface feature. The plurality of formed ceramic abrasive particles attached to a flexible backing by a make coat comprising a resinous adhesive forming an abrasive layer. The surface feature having a specified z-direction rotational orientation, and the specified z-direction rotational orientation occurs more frequently in the abrasive layer than would occur by a random z-direction rotational orientation of the surface feature.

A COATED ABRASIVE ARTICLE MAKER APPARATUS

A coated abrasive article maker apparatus including a first web path guiding a production tool such that it wraps a portion of the outer circumference of an abrasive particle transfer roll; a second web path for a resin coated backing guiding the resin coated backing such that it wraps a portion of the outer circumference of the abrasive particle transfer roll with the resin layer positioned facing the dispensing surface of the production tool this is positioned between the resin coated backing and the outer circumference of the abrasive particle transfer roll; and wherein abrasive particles are transferred from cavities in the production tool to the resin coated backing as the resin coated backing and the production tool traverse around the abrasive particle transfer roll 1. A coated abrasive article maker apparatus comprising:a first web path for a production tool having a dispensing surface with a plurality of cavities, the first web path guiding the production tool through the coated abrasive article maker apparatus such that it wraps a portion of the outer circumference of an abrasive particle transfer roll;a second web path for a resin coated backing guiding the resin coated backing through the coated abrasive article maker apparatus such that it wraps a portion of the outer circumference of the abrasive particle transfer roll with the resin layer positioned facing the dispensing surface and the production tool positioned between the resin coated backing and the outer circumference of the abrasive particle transfer roll; andan abrasive particle feeder, positioned prior to the abrasive particle transfer roll in the direction of travel of the production tool along the first web path, to dispense abrasive particles onto the dispensing surface and into the plurality of cavities; andwherein abrasive particles are transferred from the plurality of cavities to the resin coated backing as the resin coated backing and the production tool traverse around the abrasive ...

Coated abrasive article with foam backing and method of making

A polyurethane foam backing suitable for making a coated abrasive article is disclosed. The polyurethane foam backing has a textured surface bearing an array of raised features and land areas. The array's geometry is designed such that a 90 degree peel force to remove a production tooling having a contacting surface bearing a plurality of microreplicated mold cavities from the textured surface is acceptable.

Dual tapered shaped abrasive particles

Shaped abrasive particles comprising alpha alumina and having a first side, a second side, a maximum length along a longitudinal axis and a maximum width transverse to the longitudinal axis. The first side comprising a quadrilateral having four edges and four vertices with the quadrilateral selected from the group consisting of a rhombus, a rhomboid, a kite, or a superellipse. The shaped abrasive particles having an aspect ratio of the maximum length divided by the maximum width of 1.3 or greater.

COATED ABRASIVE ARTICLE WITH FOAM BACKING AND METHOD OF MAKING

A polyurethane foam backing suitable for making a coated abrasive article is disclosed. The polyurethane foam backing has a textured surface bearing an array of raised features and land areas. The array's geometry is designed such that a 90 degree peel force to remove a production tooling having a contacting surface bearing a plurality of microreplicated mold cavities from the textured surface is accept able. 1. A coated abrasive article comprising: a polyurethane foam backing having at least one textured surface and an abrasive layer comprising a make coat and abrasive particles on an opposing surface , the textured surface bearing an array of raised features and land areas , the textured surface having a Total Surface Area (in) per 1 inequal to or less than 1.400 , and wherein the polyurethane foam backing has substantially uniform density.2. The coated abrasive article of wherein a density of the polyurethane foam backing is from 2 to 8 lbs/ft(32 to 129 kg/m).3. The coated abrasive article of wherein a thickness claim 1 , T claim 1 , of the polyurethane foam backing is from 3 to 7 mm.4. The coated abrasive article of claim 1 , wherein a height claim 1 , H claim 1 , of the raised feature is from 10 to 100 mils (0.25 to 2.54 mm).5. The coated abrasive article of claim 1 , wherein a raised feature density is from 20 to 80 raised features per in(3 to 13 raised features per cm).6. The coated abrasive article of claim 1 , wherein an average surface roughness claim 1 , Ra claim 1 , of the opposing surface is from 0 to 100 microns.7. The coated abrasive article of claim 1 , wherein the make coat comprises a urethane having a hardness from 55 to 80 Shore D.8. The coated abrasive article of wherein a size coat is applied over the abrasive layer claim 7 , the size coat comprising an acrylic having a glass transition temperature claim 7 , Tg claim 7 , from 54 to 100 degrees C.9. A polyurethane foam backing comprising a textured surface bearing an array of raised features and ...

COATED ABRASIVE ARTICLE HAVING ROTATIONALLY ALIGNED FORMED CERAMIC ABRASIVE PARTICLES AND METHOD OF MAKING

A coated abrasive article having a plurality of formed ceramic abrasive particles each having a surface feature. The plurality of formed ceramic abrasive particles attached to a flexible backing by a make coat comprising a resinous adhesive forming an abrasive layer. The surface feature having a specified z-direction rotational orientation, and the specified z-direction rotational orientation occurs more frequently in the abrasive layer than would occur by a random z-direction rotational orientation of the surface feature. 1. A coated abrasive article comprising:a plurality of formed ceramic abrasive particles each having a surface feature;the plurality of formed ceramic abrasive particles attached to a flexible backing by a make coat comprising a resinous adhesive forming an abrasive layer;the surface feature having a specified z-direction rotational orientation; andwherein the specified z-direction rotational orientation occurs more frequently in the abrasive layer than would occur by a random z-direction rotational orientation of the surface feature.2. The coated abrasive article of comprising a size coat applied over the plurality of formed abrasive particles attached to the backing.3. The coated abrasive article of wherein the surface feature comprises a substantially planar surface.4. The coated abrasive article of wherein the coated abrasive article comprises a disc and the specified z-direction rotational orientation positions the substantially planar surface circumferentially and a pattern created by the plurality of formed ceramic abrasive particles comprises a plurality of concentric circles.5. The coated abrasive article of wherein the coated abrasive article comprises a sheet or a belt and the specified z-direction rotational orientation positions the substantially planar surface at an angle of approximately 0 degrees to a longitudinal axis of the belt or the sheet and a pattern created by the plurality of formed ceramic abrasive particles comprises a ...

COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME

A coated abrasive article includes a backing, a make layer, crushed abrasive particles, and a size layer. The crushed abrasive particles include: 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and 0 to 65 weight percent of crushed filler particles having a second composition and a second size grade. The first and second compositions and/or size grades are different. The coated abrasive article has a direction of intended use, a majority of the platey crushed abrasive particles of the coated abrasive article are positioned with their thickness oriented substantially parallel to the direction of intended use. A method of making the coated abrasive article is also disclosed. 114-. (canceled)15. A coated abrasive article comprising:a backing having first and second opposed major surfaces;a make layer secured to at least a portion of the first major surface of the backing; 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and', i) the first and second compositions are different;', 'ii) the first and second size grades are different; or', 'iii) both of i) and ii);, '0 to 65 weight percent of crushed filler particles having a second composition and a second size grade, wherein], 'crushed abrasive particles comprising, on a total weight basisa size layer disposed on and secured to at least a portion of the make layer and platey crushed abrasive particles,wherein the coated abrasive article has a direction of intended use, and wherein a majority of the platey ...

Coated Abrasive Article with Multiplexed Structures of Abrasive Particles and Method of Making

The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment. 1. A method of making a patterned abrasive layer on a resin coated backing comprising the steps of:providing a production tool having a dispensing surface with cavities spaced a predetermined distance from each other;filling at least 30% of the cavities in the dispensing surface with two or more shaped abrasive particles in an individual cavity creating a multiplexed abrasive structure comprising two or more shaped abrasive particles in close proximity to each other;aligning a resin coated backing with the dispensing surface with the resin layer facing the dispensing surface;transferring the shaped abrasive particles in the cavities to the resin coated backing and attaching the shaped abrasive particles to the resin layer; andremoving the production tool to expose the multiplexed abrasive structures in a patterned abrasive layer on the resin coated backing.2. The method of wherein the cavities comprise rows of parallel lines.3. The method of wherein the cavities comprise a pattern of concentric circles.4. The method of comprising filling at least 50% of the cavities in the dispensing surface with two or more shaped abrasive particles.5. The method of comprising filling at least 80% of the cavities in the dispensing surface with two or more shaped abrasive particles.6. The method according to further comprising filling at least some of the cavities with a single shaped ...

METHOD OF MAKING A COATED ABRASIVE ARTICLE

The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment. 1. A method of making a patterned abrasive layer on a resin coated backing comprising the steps of:moving a production tool along a web path, the production tool comprising a dispensing surface comprising cavities;supplying precisely-shaped abrasive particles to the dispensing surface of the moving production tool, wherein the cavities of the production tool correspond in shape to the precisely-shaped abrasive particles;filling at least a majority of the cavities in the dispensing surface with the precisely-shaped abrasive particles while the production tool is moving along the web path;aligning the resin coated backing with the dispensing surface with a resin layer facing the dispensing surface;transferring the precisely-shaped abrasive particles in the cavities to the resin coated backing and attaching the precisely-shaped abrasive particles to the resin layer; andremoving the production tool to expose the patterned abrasive layer on the resin coated backing.2. The method of comprising moving the precisely-shaped abrasive particles around on the dispensing surface with a filling assist member after the supplying step to direct the precisely-shaped abrasive particles into the cavities.3. The method of wherein the dispensing surface is positioned to allow the force of gravity to slide the precisely-shaped abrasive particles into the cavities during the filling step and ...

VITREOUS BOND ABRASIVE ARTICLES AND METHODS OF MAKING THE SAME

Methods of making vitreous bond abrasive articles and their precursors using powder bed jetting are disclosed. Vitreous bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, unitary structured abrasive discs, abrasive segments, shaped abrasive particles, and abrasive wheels. 124-. (canceled)25. A method of making a vitreous bond abrasive article , the method comprising sequential steps: i) depositing a layer of loose powder particles in a confined region, wherein the loose powder particles comprise vitreous bond precursor particles and abrasive particles, and wherein the layer of loose powder particles has substantially uniform thickness;', 'ii) jetting a liquid binder precursor material in predetermined regions of the layer of loose powder particles;', 'iii) converting the liquid binder precursor material into a temporary binder material that bonds together particles of the loose powder particles in the predetermined regions to form a layer of bonded powder particles;, 'a) a subprocess comprising sequentiallyb) independently carrying out step a) a plurality of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles, wherein in each step a), the loose powder particles are independently selected and the liquid binder precursor material is independently selected;c) separating substantially all of the remaining loose powder particles from the abrasive article preform;d) heating the abrasive article preform to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material.26. The method of claim 25 , wherein the abrasive particles comprise at least one of diamond particles or cubic boron nitride particles.27. The method of claim 25 , wherein the abrasive particles comprise metal oxide ceramic particles.28. The method of claim 25 , wherein the abrasive particles and the vitreous bond material ...

COATED ABRASIVE ARTICLE MAKER APPARATUS

A coated abrasive article maker apparatus is disclosed comprising a first web path comprising a production tool and a second web path configured for a resin coated backing. The second web path is configured to guide the resin coated backing through the coated abrasive article maker apparatus with the resin layer positioned facing the dispensing surface. An abrasive particle feeder is positioned along the first web path and is configured to dispense abrasive particles onto the dispensing surface such that abrasive particles are removably disposed within cavities of the production tool. Abrasive particles are transferred from the plurality of cavities to the resin layer of the resin coated backing when the production tool is positioned adjacent the resin coated backing. 1. A coated abrasive article maker apparatus comprising:a first web path comprising a production tool, the production tool comprising a carrier member having a dispensing surface and a back surface opposite the dispensing surface, wherein the carrier member comprises a precisely-replicated web or tooling comprising a plurality of cavities formed therein that are complementary in shape and size to the size of abrasive particles to be coated, wherein, on a respective basis, each of the cavities extends into the carrier member from a first opening at the dispensing surface to a second end proximate the back surface, wherein the second end is smaller than the first opening, the first web path configured to guide the production tool through the coated abrasive article maker apparatus;a second web path configured for a resin coated backing, the resin coated backing comprising a resin layer, the second web path configured to guide the resin coated backing through the coated abrasive article maker apparatus with the resin layer positioned facing the dispensing surface; andan abrasive particle feeder positioned along the first web path, the abrasive particle feeder configured to dispense abrasive particles onto ...

Abrasive article with abrasive particles having random rotational orientation within a range

An abrasive article includes a plurality of abrasive particles and the rotational orientation of at least a portion of the abrasive particles about the z-axis varies randomly within a defined range, and the spacing of the abrasive particles along the y-axis varies randomly.

Systems and methods for making abrasive articles

Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of strips defining a plurality of channels. Each channel is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the channels. The particle then passes partially through the channel such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the channel. The sequence then includes the particle remaining in simultaneous contact with one of the strips and the major face for a dwell period.

ABRASIVE ARTICLE WITH ABRASIVE PARTICLES HAVING RANDOM ROTATIONAL ORIENTATION WITHIN A RANGE

An abrasive article includes a plurality of abrasive particles and the rotational orientation of at least a portion of the abrasive particles about the z-axis varies randomly within a defined range, and the spacing of the abrasive particles along the y-axis varies randomly. 1. An abrasive article having a y-axis , an x-axis transverse to the y-axis , and a z-axis orthogonal to the y-axis and x-axis , the abrasive article comprising a plurality of abrasive particles , wherein the rotational orientation of at least a portion of the abrasive particles about the z-axis varies randomly within a defined range , and wherein the spacing of the abrasive particles varies randomly along the y-axis.2. An abrasive article as defined in claim 1 , wherein the spacing of the abrasive particles in the x-axis direction is random.3. An abrasive article as defined in claim 2 , wherein the spacing of the abrasive particles is more uniform in the x-axis direction than the y-axis direction.4. An abrasive article as defined in claim 3 , wherein the spacing of the abrasive particles in the x-axis direction varies within a defined range.5. An abrasive article as defined in claim 4 , wherein the abrasive particles are arranged in rows claim 4 , and further wherein the average deviation of the location of an abrasive particle within a row varies randomly by no more than about plus or minus (+/−) 4 times the thickness of the abrasive particle.6. An abrasive article as defined in claim 1 , wherein at least a portion of the abrasive particles are arranged in a row having a longitudinal axis claim 1 , each abrasive particle has a longitudinal axis claim 1 , and the longitudinal axis of at least a portion of the abrasive particles is within a defined range relative to the longitudinal axis of the row.7. An abrasive article as defined in claim 6 , wherein the longitudinal axis of the row is generally parallel to the first axis of the abrasive article y-axis.8. An abrasive article as defined in claim ...

COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME

A coated abrasive article includes a backing, a make layer, crushed abrasive particles, and a size layer. The crushed abrasive particles include: 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and 0 to 65 weight percent of crushed filler particles having a second composition and a second size grade. The first and second compositions and/or size grades are different. The coated abrasive article has a direction of intended use, a majority of the platey crushed abrasive particles of the coated abrasive article are positioned with their thickness oriented substantially parallel to the direction of intended use. A method of making the coated abrasive article is also disclosed. 1. A coated abrasive article comprising:a backing having first and second opposed major surfaces;a make layer secured to at least a portion of the first major surface of the backing; 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and', i) the first and second compositions are different;', 'ii) the first and second size grades are different; or', 'iii) both of i) and ii);, '0 to 65 weight percent of crushed filler particles having a second composition and a second size grade, wherein], 'crushed abrasive particles comprising, on a total weight basisa size layer disposed on and secured to at least a portion of the make layer and platey crushed abrasive particles,wherein the coated abrasive article has a direction of intended use, and wherein a majority of the platey crushed abrasive ...

SYSTEM FOR MAKING ABRASIVE ARTICLE

In some examples, an abrasive particle transfer system including a production tool comprising a dispensing surface and a back surface opposite the dispensing surface, wherein the production tool has cavities formed therein, wherein, on a respective basis, each of the cavities extends from a first opening at the dispensing surface through the production tool to a second opening at the back surface, and wherein the second opening is smaller than the first opening; abrasive particles removably disposed within at least some of the cavities such that a portion of each particle protrudes from the back surface through the second opening; and a transfer roll having an outer surface, wherein the production tool is guided along a web path such that the portion of the abrasive particles protruding from the back surface of the production tool contacts the outer surface of the abrasive particle transfer roll to displace the abrasive particles. 1. An abrasive particle transfer system comprising:a production tool comprising a dispensing surface and a back surface opposite the dispensing surface, wherein the production tool has cavities formed therein, wherein, on a respective basis, each of the cavities extends from a first opening at the dispensing surface through the production tool to a second opening at the back surface, and wherein the second opening is smaller than the first opening;abrasive particles removably disposed within at least some of the cavities such that a portion of each particle of the abrasive particles protrudes from the back surface through the second opening; andan abrasive particle transfer roll having an outer surface, wherein the production tool is guided along a web path such that the portion of the abrasive particles protruding from the back surface of the production tool contacts the outer surface of the abrasive particle transfer roll to displace the abrasive particles.2. The abrasive particle transfer system of claim 1 , wherein the outer surface of ...

Supported abrasive particles, abrasive articles, and methods of making the same

A plurality of supported abrasive particles wherein each supported abrasive particle respectively comprises an abrasive platelet member having a major surface and having at least one crushed support member securely bonded to and proximate the major surface. Abrasive articles containing the supported abrasive particles, and methods of making supported abrasive particles are also disclosed.

ABRASIVE BELT WITH ANGLED SHAPED ABRASIVE PARTICLES

An abrasive belt having a backing and an abrasive layer adhered to the backing by a make coat resin and the abrasive layer comprising a plurality of shaped abrasive particles. A first belt side and a second belt side opposing the first belt side with the first and second belt sides generally aligned with a longitudinal axis of the grinding belt. The belt having at least 30% of the shaped abrasive particles in the abrasive layer having a first face and placed onto the backing such that an angle between the first face and the longitudinal axis is greater than 0 degrees and less than or equal to 20 degrees. 1. An abrasive belt comprising:a backing and an abrasive layer adhered to the backing by a make coat resin and the abrasive layer comprising a plurality of shaped abrasive particles;a first belt side and a second belt side opposing the first belt side with the first and second belt sides generally aligned with a longitudinal axis of the grinding belt;at least 30% of the shaped abrasive particles in the abrasive layer having a first face and placed onto the backing such that an angle between the first face and the longitudinal axis is greater than 0 degrees and less than or equal to 20 degrees.2. The abrasive belt of wherein the shaped abrasive particles comprise a second face opposing the first face and a sidewall connecting the first face to the second face.3. The abrasive belt of wherein a perimeter of the both first face and the second face is triangular.4. The abrasive belt of wherein the perimeter is an equilateral triangle.5. The abrasive belt of wherein greater than 50% of the shaped abrasive particles in the abrasive layer having a first face and placed onto the backing such that an angle between the first face and the longitudinal axis is greater than 0 and less than or equal to 20 degrees.6. The abrasive belt of wherein greater than 75% of the shaped abrasive particles in the abrasive layer having a first face and placed onto the backing such that an angle ...

Coated abrasive disc and methods of making and using the same

A coated abrasive disc includes a disc backing having an outer circumference. An abrasive layer is disposed on the disc backing. The abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material. The triangular abrasive platelets are outwardly disposed at regularly-spaced points along a spiral pattern extending outwardly toward the outer circumference. Each triangular abrasive platelet has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of the triangular abrasive platelets is disposed facing and proximate to the disc backing, and at least 70 percent of the triangular abrasive platelets are disposed in a recurring sequential orientation having an oscillating Z-axis rotational orientation of the first respective sidewall relative to the tangents to the spiral pattern at regularly-spaced points. Methods of making and using the coated abrasive disc are also disclosed.

COATED ABRASIVE ARTICLE HAVING ROTATIONALLY ALIGNED FORMED CERAMIC ABRASIVE PARTICLES AND METHOD OF MAKING

A coated abrasive article having a plurality of formed ceramic abrasive particles each having a surface feature. The plurality of formed ceramic abrasive particles attached to a flexible backing by a make coat comprising a resinous adhesive forming an abrasive layer. The surface feature having a specified z-direction rotational orientation, and the specified z-direction rotational orientation occurs more frequently in the abrasive layer than would occur by a random z-direction rotational orientation of the surface feature. 116-. (cancelled)17. A coated abrasive article comprising:a plurality of monolithic formed abrasive particles; anda backing extending in an x-direction and a y-direction;wherein the plurality of monolithic formed abrasive particles are attached to the backing and at least 50% of the monolithic formed abrasive particles are rotated about a z-axis passing through each of the monolithic formed abrasive particles and the backing to a predetermined z-direction rotational orientation.18. The coated abrasive article of claim 17 , wherein the z-direction rotational orientation is not random and occurs more frequently than would occur by a random z-direction rotational orientation of the plurality of monolithic formed abrasive particles.19. The coated abrasive article of claim 17 , wherein the predetermined z-direction rotational orientation of at least 50 percent of the monolithic formed abrasive particles is at an angle ranging from approximately zero degrees to approximately 90 degrees relative to a longitudinal axis of the article.20. The coated abrasive article of claim 17 , wherein the plurality of monolithic formed abrasive particles are attached to the backing by a make coat comprising a resinous adhesive.21. The coated abrasive article of claim 17 , wherein the backing is a flexible backing.22. The coated abrasive article of claim 17 , further comprising a size coat applied over the plurality of monolithic formed abrasive particles attached to the ...

Coated abrasive disc and methods of making and using the same

A coated abrasive disc includes a disc backing and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements secured to a major surface of the disc backing by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal and vertical lines of a rectangular grid pattern. Each abrasive element has two triangular abrasive platelets, each having respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of the triangular abrasive platelets is disposed facing and proximate to the disc backing. A first portion of the abrasive elements is arranged in alternating first rows wherein the triangular abrasive platelets are disposed lengthwise aligned with the vertical lines. A second portion of the abrasive elements is arranged in alternating second rows wherein the triangular abrasive platelets are disposed lengthwise aligned with the horizontal lines. The first and second rows repeatedly alternate along the vertical lines. Methods of making and using the coated abrasive disc are also disclosed.

COATED ABRASIVE DISC AND METHODS OF MAKING AND USING THE SAME

A coated abrasive disc includes a disc backing and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements secured to a major surface of the disc backing by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal and vertical lines of a rectangular grid pattern. At least 70 percent of the intersections have one of the abrasive elements disposed thereat. Each of the abrasive elements has two triangular abrasive platelets. Each one of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of the triangular abrasive platelets is disposed facing and proximate to the disc backing. The abrasive elements are arranged such that the triangular abrasive platelets in orthogonally adjacent abrasive elements have a Z-axis rotational orientation within 10 degrees of perpendicular to each other. Methods of making and using the coated abrasive disc are also disclosed. 1. A coated abrasive disc comprising:a disc backing;an abrasive layer disposed on the disc backing, wherein the abrasive layer comprises abrasive elements secured to a major surface of the disc backing by at least one binder material, wherein the abrasive elements are disposed at contiguous intersections of horizontal lines and vertical lines of a rectangular grid pattern, wherein at least 70 percent of the intersections have one of the abrasive elements disposed thereat,wherein each of the abrasive elements has two triangular abrasive platelets, wherein each of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls, wherein, on a respective basis, one sidewall of at least 90 percent of the triangular abrasive platelets is disposed facing and proximate to the disc backing,wherein the abrasive elements are arranged such that the ...

COATED ABRASIVE DISC AND METHODS OF MAKING AND USING THE SAME

A coated abrasive disc includes a disc backing having an outer circumference. An abrasive layer is disposed on the disc backing. The abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material. The triangular abrasive platelets are disposed at least 70 percent of regularly-spaced points along an arithmetic spiral pattern extending outwardly toward the outer circumference. Each one of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of each of the triangular abrasive platelets disposed facing and proximate to the disc backing, and is lengthwise aligned within 10 degrees of being tangent to the arithmetic spiral pattern. Methods of making and using the coated abrasive disc are also disclosed. 1. A coated abrasive disc comprising:a disc backing having an outer circumference;an abrasive layer disposed on the disc backing, wherein the abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material, wherein the triangular abrasive platelets are disposed at least 70 percent of regularly-spaced points along an arithmetic spiral pattern extending outwardly toward the outer circumference,wherein each one of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls, andwherein, on a respective basis, one sidewall of at least 90 percent of each of the triangular abrasive platelets disposed facing and proximate to the disc backing, and is lengthwise aligned within 10 degrees of being tangent to the arithmetic spiral pattern.2. The coated abrasive disc of claim 1 , wherein the triangular abrasive platelets have an average thickness claim 1 , and wherein the arithmetic spiral pattern has a pitch that is 1.2 to 3 times the ...

Stable, low cure-temperature semi-structural pressure sensitive adhesive

A curable pressure sensitive adhesive having long shelf stability comprising (a) at least one free radically polymerized polymer; (2) at least one cationically-polymerizable monomer; (3) a photo-activatable catalyst system for the cationically-polymerizable monomer comprising either at least one organometallic complex salt or at least one onium salt; and (4) optionally, a monohydric or polyhydric alcohol, wherein there is essentially no conversion of the cationically-polymerizable monomer of the curable pressure sensitive adhesive when stored in a manner to exclude actinic radiation, and methods of making the same.

Coated abrasive article having rotationally aligned formed ceramic abrasive particles and method of making

Stable, low cure-temperature semi-structural pressure sensitive adhesive

A curable pressure sensitive adhesive having long shelf stability comprising: (1) at least one free radically polymerized polymer; (2) at least one cationically-polymerizable monomer; (3) a photo-activatable catalyst system for the cationically-polymerizable monomer comprising either at least one organometallic complex salt or at least one onium salt; and (4) optionally, a monohydric or polyhydric alcohol, wherein there is essentially no conversion of the cationically-polymerizable monomer of the curable pressure sensitive adhesive when stored in a manner to exclude actinic radiation, and methods of making the same.

Coated abrasive article having rotationally aligned formed ceramic abrasive particles and method of making

A coated abrasive article having a plurality of formed ceramic abrasive particles each having a surface feature. The plurality of formed ceramic abrasive particles attached to a flexible backing by a make coat comprising a resinous adhesive forming an abrasive layer. The surface feature having a specified z-direction rotational orientation, and the specified z-direction rotational orientation occurs more frequently in the abrasive layer than would occur by a random z-direction rotational orientation of the surface feature.

Coated abrasive article with composite tie layer, and method of making and using the same

Coated abrasive articles have a composite tie layer. The composite tie layer is preparable by disposing a first polymerizable composition comprising a polyfunctional aziridine on a backing, and disposing a second polymerizable composition comprising at least one acidic free-radically polymerizable monomer and at least one oligomer having at least two pendant free-radically polymerizable groups on the first polymerizable composition, at least partially polymerizing the first and second polymerizable compositions, wherein homopolymerization of the oligomer results in a polymer having a glass transition temperature of less than 50 degrees Celsius.

Method of making an abrasive article and abrasive article

A method of making an abrasive article comprises urging a malleable thermosetting melt-flowable composition through openings extending through a porous abrasive member to form an abrasive article precursor; which is heated to form the abrasive article. Multiple abrasive articles may be stacked prior to heating. Methods can be used to fabricate abrasive articles such as grinding wheels and cut-off wheels.

Organometallic monomers and polymers with improved adhesion

2134334 9323794 PCTABS00028 An energy sensitive composition comprising a monomeric organometallic complex essentially free of nucleophilic groups and which, upon exposure to energy, bonds to basic reactive sites on a substrate via the metal center, leaving the polymerizable group of the complex unreacted and unrestricted; an energy sensitive composition at least one energy sensitive organometallic group is incorporated in or appended to the backbone of a polymer, such that the resulting coordinatively unsaturated organometallic group or groups bond to basic reactive sites on a substrate, thus forming permanent bonds, and further, the adherent compositions are useful in applications such as adhesion of polymers to substrates, protective coatings, printing plates, durable release coatings, primers, binders, and paints.

Abrasive article with shaped abrasive particles with predetermined rake angles

The present disclosure provides an abrasive article (10). The abrasive article (10) has a direction of use, a y-axis and a z-axis orthogonal to the y-axis and the direction of use. The abrasive article (10) further includes a backing (12) and shaped abrasive particles attached to the backing. About 5% to about 100% of the shaped abrasive particles (14) independently include a first side surface (16), a second side surface (18) opposed to the first side surface (16), a leading surface (20) connected to the first side surface (16) at a first edge (24) and connected to the second side surface (18) at a second edge (26), a rake angle (30) between the backing (12) and the leading surface (20) in a range of from about 10 degrees to about 110 degrees, and a z-direction rotational angle (50) between a line (52) intersecting the first edge (16) and second edge (18) and the direction of use (22) of the abrasive article (10) in a range of from about 10 degrees to about 170 degrees.

Abrasive articles comprising abrasive particles and a polymeric reaction product

Abrasive articles (e.g., abrasive wheels) comprised of abrasive particles (26) and polymeric material (24) such as a polymeric reaction product of components comprising saturated polyol, saturated polyisocyanate, and a free radical source, and methods of making and using the abrasive articles.

Cellular abrasive article

Abrasive articles abrasive articles (e.g., abrasive wheels) comprised of abrasive agglomerate particles dispersed within cellular polymeric material, and methods of making and using the abrasive articles.

Coated abrasive article with tie layer, and method of making and using the same

Coated abrasive belt and methods of making and using the same

A coated abrasive belt (100) includes a belt backing (110) and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements (160) secured to at least a portion of a major surface of the belt backing (110) by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal (192) and vertical lines (194) of a rectangular grid pattern. Each abrasive element has at least two triangular abrasive platelets (130), each having respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of the triangular abrasive platelets is disposed facing and proximate to the belt backing. A first portion of the abrasive elements is arranged in alternating first rows (16) wherein the triangular abrasive platelets are disposed lengthwise aligned with the vertical lines (194). A second portion of the abrasive elements is arranged in alternating second rows (168) wherein the triangular abrasive platelets (130) are disposed lengthwise aligned with the horizontal lines (194). The first and second rows repeatedly alternate along the vertical lines. Methods of making and using the coated abrasive belt are also disclosed.

Coated abrasive article with tie layer, and method of making and using the same

Coated abrasive articles have a tie layer that is preparable by at least partially polymerizing an isotropic polymerizable composition comprising a polyfunctional aziridine, an acidic free-radically polymerizable monomer, and an oligomer having at least two pendant free-radically polymerizable groups, wherein homopolymerization of the oligomer results in a polymer having a glass transition temperature of less than 50 degrees Celsius.

Coated abrasive article having rotationally aligned formed ceramic abrasive particles and method of manufacturing the same

System for making abrasive article

Abrasive article with shaped abrasive particles with predetermined rake angles

The present disclosure provides an abrasive article (10). The abrasive article (10) has a direction of use, a y-axis and a z-axis orthogonal to the y-axis and the direction of use. The abrasive article (10) further includes a backing (12) and shaped abrasive particles attached to the backing. About 5% to about 100% of the shaped abrasive particles (14) independently include a first side surface (16), a second side surface (18) opposed to the first side surface (16), a leading surface (20) connected to the first side surface (16) at a first edge (24) and connected to the second side surface (18) at a second edge (26), a rake angle (30) between the backing (12) and the leading surface (20) in a range of from about 10 degrees to about 110 degrees, and a z-direction rotational angle (50) between a line (52) intersecting the first edge (16) and second edge (18) and the direction of use (22) of the abrasive article (10) in a range of from about 10 degrees to about 170 degrees.

Method of making a coated abrasive article

The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.

coated abrasive mat and methods of fabrication and use thereof

ESTEIRA ABRASIVA REVESTIDA E MÉTODOS DE FABRICAÇÃO E USO DA MESMA. A presente invenção se refere a uma esteira abrasiva revestida (100) que inclui uma camada de suporte de esteira (110) e uma camada abrasiva disposta sobre a mesma. A camada abrasiva compreende elementos abrasivos (160) presos a pelo menos uma porção de uma superfície principal da camada de suporte de esteira (110) por pelo menos um material ligante. Os elementos abrasivos são dispostos em interseções contíguas de linhas horizontais (192) e verticais (194) de um padrão de grade retangular. Cada elemento abrasivo tem ao menos duas plaquetas abrasivas triangulares (130), cada uma tendo respectivas superfícies de topo e de fundo conectadas uma à outra e separadas por três paredes laterais. Em uma base respectiva, uma parede lateral das plaquetas abrasivas triangulares está disposta voltada para e adjacente à camada de suporte da esteira. Uma primeira porção dos elementos abrasivos é disposta em primeiras fileiras alternadas (16), sendo que as plaquetas abrasivas triangulares são dispostas alinhadas longitudinalmente com as linhas verticais (194). Uma segunda porção dos elementos abrasivos é disposta em segundas fileiras alternadas (168), sendo que as plaquetas abrasivas triangulares (130) são dispostas alinhadas longitudinalmente com as linhas horizontais (194). A primeira e a segunda fileiras alternam epetidamente ao longo das linhas verticais. São também revelados métodos de produção e uso da esteira abrasiva revestida.

Zellenförmiger schleifgegenstand

Beschichteter schleifartikel mit bindeschicht und herstellungs- und verwendungsverfahren dafür

Beschichteter schleifartikel mit verbundbindeschicht und herstellungs- und verwendungsverfahren dafür

Coated abrasive disc and methods of making and using the same

A coated abrasive disc includes a disc backing having an outer circumference. An abrasive layer is disposed on the disc backing. The abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material. The triangular abrasive platelets are outwardly disposed at regularly-spaced points along a spiral pattern extending outwardly toward the outer circumference. Each triangular abrasive platelet has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of the triangular abrasive platelets is disposed facing and proximate to the disc backing, and at least 70 percent of the triangular abrasive platelets are disposed in a recurring sequential orientation having an oscillating Z-axis rotational orientation of the first respective sidewall relative to the tangents to the spiral pattern at regularly-spaced points. Methods of making and using the coated abrasive disc are also disclosed.

Coated abrasive disc and methods of making and using the same

A coated abrasive disc includes a disc backing having an outer circumference. An abrasive layer is disposed on the disc backing. The abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material. The triangular abrasive platelets are disposed at least 70 percent of regularly-spaced points along an arithmetic spiral pattern extending outwardly toward the outer circumference. Each one of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of each of the triangular abrasive platelets disposed facing and proximate to the disc backing, and is lengthwise aligned within 10 degrees of being tangent to the arithmetic spiral pattern. Methods of making and using the coated abrasive disc are also disclosed.

Abrasive article with seamless backing

Seamless backings (10) and seamless coated abrasive articles are provided. The seamless backings (10) and seamless coated abrasive articles have a backing binder (20) formed from a backing binder precursor comprising an aromatic polysiocyanate prepolymer, a polyol curative, an acrylated urethane, and at least one polymerization agent. Also provided is a method for preparing seamless backings (10) and seamless coated abrasive articles.

Abrasive article with seamless backing

Composition, treated backing, and abrasive articles containing the same

A curable composition comprises epoxy resin preparable by reaction of epichlorohydrin with at least one of bisphenol A or bisphenol F, polyfunctional urethane(meth)acrylate, dicyandiamide and photoinitiator. The curable composition is useful for preparing treated backings and coated abrasive articles.

Schleifgegenstände umfassend schleifkörner und ein polymeres reaktionsprodukt

Systems and methods for making abrasive articles

Methods of making an abrasive article..Abrasive particles are loaded to a distribution tool including a plurality of strips defining a plurality of channels. Each channel is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side..At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the channels. The particle then passes partially through the channel such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the channel. The sequence then includes the particle remaining in simultaneous contact with one of the strips and the major face for a dwell period.

Coated abrasive article and method of making and using the same

A coated abrasive article comprises a fabric backing having a presize layer thereon, and an abrasive layer secured to and contacting the presize layer. The abrasive layer comprises a make layer and abrasive particles. The presize layer comprises, based on a total weight of components a) through f), a reaction product of components comprising: a) from 60 to 90 percent by weight of epoxy resin preparable by reaction of epichlorohydrin with bisphenol A; b) from 5 to 25 percent by weight of polyfunctional (meth)acrylate; c) from 10 percent by weight of aromatic acid-functional free-radically polymerizable material having an acid number up to 300; d) from 5 to 15 percent by weight of dicyandiamide; e) an effective amount of photoinitiator; and f) optionally, an effective amount of epoxy cure catalyst. Methods of making and using the same are also disclosed.

Coated abrasive article and method of making and using the same

A coated abrasive article comprises a fabric backing having a presize layer thereon, and an abrasive layer secured to and contacting the presize layer. The abrasive layer comprises a make layer and abrasive particles. The presize layer comprises, based on a total weight of components a) through f), a reaction product of components comprising: a) from 60 to 90 percent by weight of epoxy resin preparable by reaction of epichlorohydrin with bisphenol A; b) from 5 to 25 percent by weight of polyfunctional (meth)acrylate; c) from 10 percent by weight of aromatic acid-functional free-radically polymerizable material having an acid number up to 300; d) from 5 to 15 percent by weight of dicyandiamide; e) an effective amount of photoinitiator; and f) optionally, an effective amount of epoxy cure catalyst. Methods of making and using the same are also disclosed.

Coated abrasive belt and methods of making and using the same

Coated abrasive disc and methods of making and using the same

A coated abrasive disc includes a disc backing and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements secured to a major surface of the disc backing by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal and vertical lines of a rectangular grid pattern. Each abrasive element has two triangular abrasive platelets, each having respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of the triangular abrasive platelets is disposed facing and proximate to the disc backing. A first portion of the abrasive elements is arranged in alternating first rows wherein the triangular abrasive platelets are disposed lengthwise aligned with the vertical lines. A second portion of the abrasive elements is arranged in alternating second rows wherein the triangular abrasive platelets are disposed lengthwise aligned with the horizontal lines. The first and second rows repeatedly alternate along the vertical lines. Methods of making and using the coated abrasive disc are also disclosed.

Schleifgegenstand mit schleifmittel auf unterlage und verfahren zur herstellung und verwendung davon

Abrasive article with abrasive particles having random rotational orientation within a range

成形研磨粒子を有する被覆研磨物品を作製する方法及び得られる製品

【課題】研磨粒子及び／又は研磨物品のコスト、性能、又は寿命を改善する。【解決手段】被覆研磨物品を作製する方法は、メークコートを裏材４２の第１の主表面４１に塗布する工程と、成形研磨粒子をメークコート４４に塗布して、本質的に成形研磨粒子からなる第１の研磨層を形成する工程と、希釈剤粒子を成形研磨粒子上のメークコートに塗布して、最終研磨層を形成する工程と、最終研磨層上にサイズコートを塗布する工程と、メークコート及びサイズコートを硬化させる工程と、を含み、成形研磨粒子は、基部の反対にある頂点を備え、成形研磨粒子の幅は、基部から頂点へと先細になる。【選択図】図１Ａ

Abrasive article with seamless backing

Coated abrasive disc and method of making the same

A coated abrasive disc has a backing comprising a synthetic woven fabric having a first major surface with a presize disposed thereon and a second major surface opposite the first major surface and having a backsize disposed thereon. The presize comprises a reaction product of a curable presize precursor comprising: at least one epoxy resin prepared by reaction of epichlorohydrin with at least one of bisphenol A or bisphenol F, polyfunctional (meth)acrylate, novolac resin, imidazole epoxy cure catalyst, dicyandiamide, and a photoinitiator. A glass woven fabric permeated with an at least partially crosslinked saturant is secured to the second major surface by a thermoplastic laminating adhesive disposed between the second major surface of the synthetic woven fabric and the glass woven fabric. A method of making the same is also disclosed.

Método para fabricação de uma camada abrasiva dotada de um padrão em uma camada de suporte revestida com resina

método para fabricação de um artigo abrasivo revestido o método envolve, em geral, as etapas de preencher as cavidades em uma ferramenta de produção, cada uma com uma partícula abrasiva individual. alinhar uma ferramenta de produção preenchida e uma camada de suporte revestida com resina para transferir as partículas abrasivas para a camada de suporte revestida com resina. transferir as partículas abrasivas das cavidades para a camada de suporte revestida com resina e remover a ferramenta de produção da posição alinhada com a camada de suporte revestida com resina. depois disso, a camada de resina é curada, um revestimento de encolamento é aplicado e curado, e o artigo abrasivo revestido é convertido em uma folha, disco, ou esteira por um equipamento de conversão adequado.

Method of making a coated abrasive article

The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.

Método para fabricação de um artigo abrasivo revestido