Patent US5470368A successfully refreshed from Google Patents.
US5470368A
Expired / Lapsed
US
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Reduced viscosity slurries, abrasive articles made therefrom, and methods of making said articles
Assignee: 3M Co
•
Filing: 1994-06-01
•
Granted: 1995-11-28
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Expires: 2014-06-01
Abstract
Abstract Slurries and binder precursor dispersions suitable for use in producing abrasive articles are presented. slurries comprise a polymerizable resin which is preferably addition polymerizable, abrasive particles, and modifying particles, wherein the modifying particles are present in an amount sufficient to reduce the viscosity of the slurry. Abrasive articles incorporating cured versions of the slurries and dispersions are presented, as well as methods of making the articles and of reducing sedimentation rate of mineral particles (abrasive or filler).
Inventors
- 👤 Scott R. Culler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:24
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D11/00; B24D3/285
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
A slurry suitable for use in producing abrasive articles, the slurry consisting essentially of a polymerizable resin, abrasive particles, and modifying particles, wherein said modifying particles have a surface area of less than about 300 m 2 /g and wherein said modifying particles are present in an amount sufficient to reduce the viscosity of said slurry.
Claim 2
Dependent Claim
56 words
A slurry suitable for use in producing abrasive articles, the slurry consisting essentially of a polymerizable resin, abrasive particles, and modifying particles, wherein said modifying particles have a surface area of less than about 300 m 2 /g and wherein said modifying particles are present in an amount sufficient to reduce the viscosity of said slurry.
Claim 3
Dependent Claim
16 words
A slurry in accordance with claim 1 wherein the polymerizable resin is an addition polymerizable resin.
Claim 4
Dependent Claim
55 words
A slurry in accordance with claim 2 wherein the addition polymerizable resin is selected from the group consisting of styrene, divinylbenzene, vinyl toluene, and aminoplast resins having pendant unsaturated carbonyl groups, isocyanurate resins having at least one pendant acrylate group, acrylated urethane resins, epoxy resins, and isocyanate derivatives having at least one pendant acrylate group.
Claim 5
Dependent Claim
11 words
A slurry in accordance with claim 1 further including a photoinitiator.
Claim 6
Dependent Claim
12 words
A slurry in accordance with claim 1 further including a reactive diluent.
Claim 7
Dependent Claim
29 words
A slurry in accordance with claim 3 wherein said isocyanurate resin having at least one pendant acrylate group is the triacrylate of tris(hydroxyethyl) isocyanurate dissolved in trimethylol propane triacrylate.
Claim 8
Dependent Claim
28 words
A slurry in accordance with claim 5 wherein said reactive diluent is selected from the group consisting of N-vinyl-pyrrolidone, hexanediol diacrylate, triethylene glycol diacrylate, and trimethylol propane triacrylate.
Claim 9
Dependent Claim
15 words
A slurry in accordance with claim 7 wherein said reactive diluent is trimethylol propane triacrylate.
Claim 10
Dependent Claim
24 words
A slurry in accordance with claim 1 wherein said modifying particles are silica particles having an average particle size less than about 100 millimicrometers.
Claim 11
Dependent Claim
25 words
A slurry in accordance with claim 1 wherein said abrasive particles have an average particle size ranging from about 0.1 micrometer to about 700 micrometers.
Claim 12
Dependent Claim
31 words
A slurry in accordance with claim 1 wherein said abrasive particles are selected from the group consisting of aluminum oxide, flint, garnet, silicon carbide, cubic boron nitride, silicon nitride and diamond.
Claim 13
Dependent Claim
37 words
A slurry in accordance with claim 1 wherein said modifying particles are present in an amount ranging from about 0.1 dry weight percent to about 30.0 dry weight percent based on total dry weight of said slurry.
Claim 14
Dependent Claim
11 words
A slurry in accordance with claim 1 further including a filler.
Claim 15
Dependent Claim
31 words
A nonwoven abrasive article comprising an open, lofty, three-dimensional network of fibers bound together at points where they contact with a binder, the binder derived from the slurry of claim 1.
Claim 16
Dependent Claim
11 words
A bonded abrasive article derived from the slurry of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-27 | 1999-05-29 | 1999-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-27 | 2003-05-29 | 2003-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-27 | 2007-05-29 | 2007-11-28 | $7700.00 | Window Closed / Lapsed |