US5368619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduced viscosity slurries, abrasive articles made therefrom and methods of making said articles
Assignee: 3M Co
•
Filing: 1994-01-05
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Granted: 1994-11-29
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Expires: 2014-01-05
Abstract
Abstract Sluuries 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
2026-10-28 15:53
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D11/00; B24D3/285
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
71 words
A coated abrasive of the type having a flexible backing having an abrasive coating thereon, wherein the abrasive coating is derived from a slurry which consists essentially of from about 20 to about 95 dry weight percent polymerizable resin, from about 30 to about 70 dry weight percent abrasive particles, and from about 0.01 to about 30 dry weight percent modifying silica particles by, based on dry weight of said slurry.
Claim 2
Dependent Claim
71 words
A coated abrasive of the type having a flexible backing having an abrasive coating thereon, wherein the abrasive coating is derived from a slurry which consists essentially of from about 20 to about 95 dry weight percent polymerizable resin, from about 30 to about 70 dry weight percent abrasive particles, and from about 0.01 to about 30 dry weight percent modifying silica particles by, based on dry weight of said slurry.
Claim 3
Dependent Claim
14 words
A coated abrasive in accordance with claim 1 wherein the slurry includes a photoinitiator.
Claim 4
Dependent Claim
17 words
A coated abrasive in accordance with claim 1 wherein said polymerizable resin is an addition polymerizable resin.
Claim 5
Dependent Claim
56 words
A coated abrasive in accordance with claim 2 wherein said 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 6
Dependent Claim
30 words
A coated abrasive in accordance with claim 4 wherein said isocyanurate resins having at least one pendant acrylate group is the triacrylate of tris(hydroxyethyl) isocyanurate dissolved in trimethylol propane triacrylate.
Claim 7
Dependent Claim
32 words
A coated abrasive in accordance with claim 1 wherein said polymerizable resin includes a reactive diluent selected from the group consisting of N-vinyl-pyrrolidone, hexanediol diacrylate, triethylene glycol diacrylate, and trimethylol propane triacrylate.
Claim 8
Dependent Claim
39 words
A coated abrasive in accordance with claim 1 wherein said polymerizable resin, abrasive particles, and modifying particles form a plurality of abrasive composites having at least one shape, said composites being disposed in an array on said flexible backing.
Claim 9
Dependent Claim
17 words
A coated abrasive in accordance with claim 7 wherein said at least one shape is a pyramid.
References Cited (Backward Citations)
DE1961763A1
Cited
US3631638A
Cited
US4588419A
Cited
US4642126A
Cited
US4751138A
Cited
US4871370A
Cited
US5015266A
Cited
US4927431A
Cited
US5000761A
Cited
EP0366051A1
Cited
EP0396150A2
Cited
US5014468A
Cited
US5011513A
Cited
WO1992013680A1
Cited
US5152917A
Cited
US5152917B1
Cited
US5256170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-28 | 1998-05-30 | 1998-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-28 | 2002-05-30 | 2002-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-28 | 2006-05-30 | 2006-11-29 | $7700.00 | Window Closed / Lapsed |