CA2426586A1 - Composite abrasive particles and method of manufacture - Google Patents

Composite abrasive particles and method of manufacture Download PDF

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Publication number
CA2426586A1
CA2426586A1 CA002426586A CA2426586A CA2426586A1 CA 2426586 A1 CA2426586 A1 CA 2426586A1 CA 002426586 A CA002426586 A CA 002426586A CA 2426586 A CA2426586 A CA 2426586A CA 2426586 A1 CA2426586 A1 CA 2426586A1
Authority
CA
Canada
Prior art keywords
agglomerates
mixture
agglomerate
sol
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002426586A
Other languages
French (fr)
Other versions
CA2426586C (en
Inventor
Negus B. Adefris
Kathleen A. Wagle-Peterson
William D. Joseph
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2426586A1 publication Critical patent/CA2426586A1/en
Application granted granted Critical
Publication of CA2426586C publication Critical patent/CA2426586C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
    • B01J13/043—Drying and spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/18—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor with cooling provisions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer

Abstract

The present application discloses an agglomerate. The agglomerate comprises a crystalline matrix. The agglomerate may additionally comprise abrasive particles. The agglomerate has a normalized bulk density of less than about 0.38. The present application additionally discloses a method of manufacturing the agglomerate. The agglomerate is manufactured by forming a mixture comprising an abrasive particle with a sol, the sol comprising an oxide and water and introducing the mixture into a spray dryer. The mixture is then dried in the spray dryer. The mixture is then fired, for example in an oven.
The resulting agglomerates comprise abrasive particles retained within a crystalline matrix of the oxide. The present invention additionally discloses methods of using the agglomerates of the resent invention.

Claims (7)

1. A method of manufacturing an agglomerate comprising:

forming a mixture comprising an abrasive particle with a sol, the sol comprising an oxide and water;

introducing the mixture into a spray dryer;

drying the mixture in the spray dryer to form loose greenware agglomerates;
and firing the greenware agglomerates, wherein the agglomerates comprise abrasive particles retained within a crystalline matrix of the oxide.
2. A method of manufacturing a coated abrasive article comprising:

forming a mixture comprising an abrasive particle with a sol, the sol comprising an oxide and water;

introducing the mixture into a spray dryer;

drying the mixture in the spray dryer to form loose greenware agglomerates;

firing the greenware agglomerates to form agglomerates, wherein the agglomerates comprise abrasive particles retained within a crystalline matrix of the oxide;

mixing the agglomerates with a binder precursor to form a slurry;

coating the slurry on a major surface of a backing; and curing the binder precursor.
3. A method of manufacturing a three dimensional fixed abrasive article comprising:

forming a mixture comprising an abrasive particle with a sol, the sol comprising an oxide and water;

introducing the mixture into a spray dryer;

drying the mixture in the spray dryer to form loose greenware agglomerates;

CLMSPAMD

firing the greenware agglomerates to form agglomerates, wherein the agglomerates comprise abrasive particles retained within a crystalline matrix of the oxide;
mixing the agglomerates with a binder precursor to form a slurry;

applying the slurry to a production tool comprising cavities; and curing the binder precursor.
4. A method of polishing a workpiece comprising:
providing an workpiece;
bringing the workpiece in contact with a coated abrasive article, the coated abrasive article comprising agglomerate particles, the agglomerate particles comprising a crystalline matrix;
abrasive particles; and a normalized bulk density less than about 0.38; and relatively moving the workpiece and the coated abrasive article.
5. An agglomerate particle comprising abrasive particles retained within a crystalline matrix; and a normalized bulk density less than about 0.38.
6. A coated abrasive article comprising the agglomerate of claim 5.
7. A three dimensional fixed abrasive article comprising the agglomerate of claim 5.
CA002426586A 2000-11-10 2001-11-08 Composite abrasive particles and method of manufacture Expired - Fee Related CA2426586C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US24707400P 2000-11-10 2000-11-10
US60/247,074 2000-11-10
US09/942,007 US6645624B2 (en) 2000-11-10 2001-08-29 Composite abrasive particles and method of manufacture
US09/942,007 2001-08-29
PCT/US2001/046562 WO2002038338A2 (en) 2000-11-10 2001-11-08 Composite abrasive particles and method of manufacture

Publications (2)

Publication Number Publication Date
CA2426586A1 true CA2426586A1 (en) 2002-05-16
CA2426586C CA2426586C (en) 2010-01-05

Family

ID=26938438

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002426586A Expired - Fee Related CA2426586C (en) 2000-11-10 2001-11-08 Composite abrasive particles and method of manufacture

Country Status (14)

Country Link
US (1) US6645624B2 (en)
EP (1) EP1339531B1 (en)
JP (2) JP4163947B2 (en)
KR (1) KR100808731B1 (en)
CN (1) CN1213835C (en)
AT (1) ATE369233T1 (en)
AU (2) AU2002227235B2 (en)
BR (1) BR0115202B1 (en)
CA (1) CA2426586C (en)
DE (1) DE60129836T2 (en)
HK (1) HK1059242A1 (en)
MY (1) MY142764A (en)
TW (1) TWI248969B (en)
WO (1) WO2002038338A2 (en)

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