CA2425190A1 - Method of making an agglomerate particle - Google Patents

Method of making an agglomerate particle Download PDF

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Publication number
CA2425190A1
CA2425190A1 CA002425190A CA2425190A CA2425190A1 CA 2425190 A1 CA2425190 A1 CA 2425190A1 CA 002425190 A CA002425190 A CA 002425190A CA 2425190 A CA2425190 A CA 2425190A CA 2425190 A1 CA2425190 A1 CA 2425190A1
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CA
Canada
Prior art keywords
agglomerate
particles
precursor
combinations
agglomerate particles
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
CA002425190A
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French (fr)
Other versions
CA2425190C (en
Inventor
Scott R. Culler
James L. Mcardle
Jeffrey W. Nelson
John T. Wallace
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
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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
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Publication of CA2425190A1 publication Critical patent/CA2425190A1/en
Application granted granted Critical
Publication of CA2425190C publication Critical patent/CA2425190C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B24D11/001—Manufacture of flexible abrasive materials
    • B24D11/005—Making abrasive webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds
    • 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
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/298—Physical dimension

Abstract

A method for making agglomerate particles from a composition comprising at least a radiation curable binder and solid particulates. The method comprises the steps of forcing the composition through a perforated substrate to form agglomerate precursor particles which then separate from the perforated substrate. Then, the particles are irradiated to form soldified, handleable agglomerate particles before being collected.

Claims (29)

1. A method for making agglomerate particles comprising the steps of:
(a) forcing a composition comprising a radiation curable polymerizable binder precursor and a plurality of solid particulates through a perforated substrate to form agglomerate precursor particles; and (b) separating the agglomerate precursor particles from the perforated substrate; and (c) irradiating the agglomerate precursor particles wherein radiation energy is transmitted from a radiation energy source to the agglomerate precursor particles to at least partially cure the binder precursor to provide agglomerate particles.
2. A method according to claim 1, wherein the agglomerate particles are collected after the irradiation step.
3. A method according to claim 1, wherein the irradiation step comprises a step of passing the agglomerate precursor particles into a first curing zone that contains the radiation source.
4. A method according to claim 1, wherein the agglomerate particles are passed through a second curing zone, wherein energy is transmitted from an energy source to the agglomerate particles to further cure the agglomerate particles.
5. A method according to claim 1, wherein the binder precursor comprises epoxy resins, acrylated urethane resins, acrylated epoxy resins, ethylenically unsaturated resins, aminoplast resins having pendant unsaturated carbonyl groups, isocyanurate derivatives having at least one pendant acrylate group, isocyanate derivatives having at least one pendant acrylate group or combinations thereof.
6. A method according to claim 1, wherein the plurality of solid particulates comprise fillers, plastic particulates, reinforcing particulates, inorganic binder precursor particulates, anti-static agents, lubricants, pigments, suspending agents or combinations thereof.
7. A method according to claim 1, wherein the agglomerate particles are filamentary shaped and have a length ranging from about 10 to about 1500 micrometers.
8. A method according to claim 7, wherein the length of the agglomerate particles is in a range from about 20 to about 800 micrometers.
9. A method according to claim 8, wherein the length of the agglomerate particles is in a range from about 50 to about 400 micrometers.
10. A method according to claim 1, wherein the agglomerate particles have a substantially constant cross-sectional shape.
11. A method according to claim 10, wherein the cross-sectional shape comprises circles, polygons or combinations thereof.
12. A method according to claim 1, wherein the agglomerate precursor particles further comprise a modifying additive.
13. A method according to claim 12, wherein the modifying additives comprise coupling agents, grinding aids, fillers, inorganic binder precursors, surfactants or combinations thereof.
14. A method according to claim 1, wherein the step of forcing the composition through the perforated substrate to form the agglomerate particles comprises methods of extrusion, milling, or calandering.
15. A method according to claim 1, wherein the radiation source comprises electron beam, ultraviolet light, visible light, laser light or combinations thereof.
16. A method according to claim 3, wherein the radiation source comprises electron beam, ultraviolet light, visible light, laser light or combinations thereof.
17. A method according to claim 4, wherein the energy source comprises electron beam, ultraviolet light, visible light, microwave, laser light, thermal or combinations thereof.
18. A method according to claim 1, wherein steps (a), (b), and (c) are performed sequentially and continuously.
19. A method according to claim 1, wherein the process components in steps (a), (b), and (c) are spatially oriented in a vertical and consecutive manner.
20. A method according to claim 19, wherein steps (a), (b), and (c) are performed sequentially and continuously.
21. A method according to claim 1, wherein the plurality of solid particulates comprise from 5 to 95% by weight of the composition.
22. A method according to claim 21, wherein the plurality of solid particulates comprise from 40 to 95% by weight of the composition.
23. A method according to claim 1, wherein said composition is 100% solids.
24. A method according to claim 1, wherein a size reduction step is performed on the agglomerate particles after the irradiation step.
25. A method according to claim 4, wherein a size reduction step is performed on the agglomerate particles after being passed through the second curing zone.
26. A method according to claim 24, wherein the size reduction step comprises the methods of milling, crushing and tumbling.
27. A method according to claim 25, wherein the size reduction step comprises the methods of milling, crushing and tumbling.
28. An agglomerate particle made according to claim 1.
29. An inorganic aggregate precursor agglomerate particle made according to claim 1.
CA002425190A 2000-10-16 2001-10-05 Method of making an agglomerate particle Expired - Fee Related CA2425190C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US68848600A 2000-10-16 2000-10-16
US09/688,486 2000-10-16
PCT/US2001/031395 WO2002033020A1 (en) 2000-10-16 2001-10-05 Method of making an agglomerate particles

Publications (2)

Publication Number Publication Date
CA2425190A1 true CA2425190A1 (en) 2002-04-25
CA2425190C CA2425190C (en) 2010-03-02

Family

ID=24764617

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002425190A Expired - Fee Related CA2425190C (en) 2000-10-16 2001-10-05 Method of making an agglomerate particle

Country Status (10)

Country Link
US (1) US6913824B2 (en)
EP (1) EP1326941B1 (en)
JP (1) JP2004511646A (en)
CN (1) CN1315972C (en)
AT (1) ATE382671T1 (en)
AU (1) AU2002211508A1 (en)
CA (1) CA2425190C (en)
DE (1) DE60132223T2 (en)
MX (1) MXPA03003290A (en)
WO (1) WO2002033020A1 (en)

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CN1469915A (en) 2004-01-21
WO2002033020A1 (en) 2002-04-25
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AU2002211508A1 (en) 2002-04-29
US6913824B2 (en) 2005-07-05

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