US5496386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated abrasive article having diluent particles and shaped abrasive particles
Assignee: 3M Co
•
Filing: 1995-06-06
•
Granted: 1996-03-05
•
Expires: 2015-06-06
Abstract
Abstract Coated abrasive articles containing particles having specified shapes. The coated abrasive article comprises: a. a backing; b. at least one binder; c. an abrasive coating comprising shaped abrasive particles and diluent particles said at least one binder serving to bond the abrasive coating to the backing. The diluent particles can comprise (1) a plurality of individual abrasive particles bonded together by an adhesive to form an agglomerate, (2) a plurality of individual non-abrasive particles bonded together by an adhesive to form an agglomerate, (3) a plurality of individual abrasive particles and a plurality of individual non-abrasive particles bonded together by an adhesive to form an agglomerate, (4) individual non-abrasive particles, (5) individual abrasive particles, or (6) combinations of the foregoing.
Inventors
- 👤 David E. Broberg
- 👤 Donna W. Bange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:49
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C09K3/1418; B; B24; B24B; B24B1/00; B24D; B24D11/00; B24D11/001; B24D3/00; B24D3/001; B24D3/002; B24D3/02; B24D3/20; B24D3/28; B24D3/34
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
102 words
A coated abrasive article comprising: (a) a backing having at least one major surface; (b) an abrasive coating comprising shaped abrasive particles, diluent particles, and a binder, said binder adhering the shaped abrasive particles and the diluent particles to the at least one major surface of the backing, wherein the abrasive particles comprise (i) alpha alumina, and (ii) an oxide of magnesium, zinc, iron, silicon, cobalt, nickel, zirconium, hafnium, chromium, yttrium, praseodymium, samarium, ytterbium, neodymium, lanthanum, gadolinium, cerium, dysprosium, erbium, titanium, and mixtures thereof; and wherein the abrasive particles are rod-shaped and have an aspect ratio of at least one to one.
Claim 2
Dependent Claim
102 words
A coated abrasive article comprising: (a) a backing having at least one major surface; (b) an abrasive coating comprising shaped abrasive particles, diluent particles, and a binder, said binder adhering the shaped abrasive particles and the diluent particles to the at least one major surface of the backing, wherein the abrasive particles comprise (i) alpha alumina, and (ii) an oxide of magnesium, zinc, iron, silicon, cobalt, nickel, zirconium, hafnium, chromium, yttrium, praseodymium, samarium, ytterbium, neodymium, lanthanum, gadolinium, cerium, dysprosium, erbium, titanium, and mixtures thereof; and wherein the abrasive particles are rod-shaped and have an aspect ratio of at least one to one.
Claim 3
Dependent Claim
92 words
A coated abrasive article comprising: (a) a backing having at least one major surface; (b) an abrasive coating comprising shaped abrasive particles, diluent particles, and a binder, said binder adhering the shaped abrasive particles and the diluent particles to the at least one major surface of the backing, wherein the abrasive particles comprise (i) alpha alumina, and (ii) an oxide of yttrium, praseodymium, samarium, ytterbium, neodymium, lanthanum, gadolinium, cerium, dysprosium, erbium, and mixtures thereof; and wherein the abrasive particles are rod-shaped and have an aspect ratio of at least one to one.
Claim 4
Dependent Claim
92 words
A coated abrasive article comprising: (a) a backing having at least one major surface; (b) an abrasive coating comprising shaped abrasive particles, diluent particles, and a binder, said binder adhering the shaped abrasive particles and the diluent particles to the at least one major surface of the backing, wherein the abrasive particles comprise (i) alpha alumina, and (ii) an oxide of yttrium, praseodymium, samarium, ytterbium, neodymium, lanthanum, gadolinium, cerium, dysprosium, erbium, and mixtures thereof; and wherein the abrasive particles are rod-shaped and have an aspect ratio of at least one to one.
Claim 5
Dependent Claim
90 words
A coated abrasive article in accordance with claim 2 wherein the diluent particles are selected from the group consisting of (a) a plurality of individual abrasive particles bonded together by an adhesive to form an agglomerate, (b) a plurality of individual non-abrasive particles bonded together by an adhesive to form an agglomerate, (c) a plurality of individual abrasive particles and a plurality of individual non-abrasive particles bonded together by an adhesive to form an agglomerate, (d) individual non-abrasive particles, (e) individual abrasive particles, and (f) combinations of (a) through (e).
Claim 6
Dependent Claim
19 words
A coated abrasive article in accordance with claim 2 wherein the shaped abrasive particles further comprise a nucleating agent.
Claim 7
Dependent Claim
35 words
A coated abrasive article in accordance with claim 4 wherein the nucleating agent is selected from the group consisting of alpha alumina, alpha ferric oxide, alpha ferric oxide precursor, titanium oxides, titanates, and chrome oxides.
Claim 8
Dependent Claim
24 words
A coated abrasive article in accordance with claim 2 wherein the shaped abrasive particles have an aspect ratio of at least 2 to 1.
Claim 9
Dependent Claim
24 words
A coated abrasive article in accordance with claim 2 wherein the shaped abrasive particles have an aspect ratio of at least 3 to 1.
Claim 10
Dependent Claim
23 words
A coated abrasive article in accordance with claim 2 wherein the shaped abrasive particles have a particle size between 50 and 1500 micrometers.
Claim 11
Dependent Claim
18 words
A coated abrasive article in accordance with claim 3 wherein the adhesive is an inorganic or organic adhesive.
Claim 12
Dependent Claim
19 words
A coated abrasive article in accordance with claim 9 wherein the inorganic adhesive is a vitreous or metallic binder.
Claim 13
Dependent Claim
38 words
A coated abrasive article in accordance with claim 3 wherein the individual abrasive particles are selected from the group consisting of aluminum oxide, silicon carbide, alumina zirconia, diamond, ceria, cubic boron nitride, silicon nitride, garnet, and combinations thereof.
Claim 14
Dependent Claim
24 words
A coated abrasive article in accordance with claim 2 wherein the abrasive coating further comprises a blend of shaped abrasive particles having different shapes.
Claim 15
Dependent Claim
18 words
A coated abrasive article in accordance with claim 2 wherein the shaped abrasive particles have a surface coating.
Claim 16
Dependent Claim
82 words
A coated abrasive article comprising: (a) a backing having at least one major surface; (b) an abrasive coating comprising shaped abrasive particles, diluent particles, and a binder, said binder adhering the shaped abrasive particles and the diluent particles to the at least one major surface of the backing; the shaped abrasive particles comprising alpha alumina; wherein the shaped abrasive particles are rod-shaped and have an aspect ratio of at least one to one, and wherein the diluent particles are individual abrasive grains.
Claim 17
Dependent Claim
82 words
A coated abrasive article comprising: (a) a backing having at least one major surface; (b) an abrasive coating comprising shaped abrasive particles, diluent particles, and a binder, said binder adhering the shaped abrasive particles and the diluent particles to the at least one major surface of the backing; the shaped abrasive particles comprising alpha alumina; wherein the shaped abrasive particles are rod-shaped and have an aspect ratio of at least one to one, and wherein the diluent particles are individual abrasive grains.
Claim 18
Dependent Claim
36 words
A coated abrasive in accordance with claim 14 wherein the abrasive particles are selected from the group consisting of aluminum oxide, silicone carbide, alumina zirconia, diamond, ceria, cubic boron nitride, silicon nitride, garnet, and combinations thereof.
Claim 19
Dependent Claim
25 words
A coated abrasive article in accordance with claim 11 wherein the aluminum oxide is fused aluminum oxide, ceramic aluminum oxide, or heat treated aluminum oxide.
Claim 20
Dependent Claim
25 words
A coated abrasive article in accordance with claim 15 wherein the aluminum oxide is fused aluminum oxide, ceramic aluminum oxide, or heat treated aluminum oxide.
References Cited (Backward Citations)
US1910444A
Cited
US2194472A
Cited
US3041156A
Cited
US3079242A
Cited
US3377660A
Cited
US3491492A
Cited
US3637630A
Cited
US4132533A
Cited
US4073096A
Cited
US4194887A
Cited
US4252544A
Cited
US4311489A
Cited
US4314827A
Cited
DE3042643A1
Cited
US4541842A
Cited
US4393021A
Cited
EP0119498A2
Cited
US4623364A
Cited
US4737163A
Cited
US4734104A
Cited
US4543106A
Cited
US4744802A
Cited
US4652275A
Cited
US4773920A
Cited
US4773920B1
Cited
EP0228856A2
Cited
US4770671A
Cited
US4957886A
Cited
US4855264A
Cited
EP0471389A2
Cited
US4799939A
Cited
US5093311A
Cited
US4881951A
Cited
US4848041A
Cited
US5009675A
Cited
US5011512A
Cited
US5011508A
Cited
US4964883A
Cited
US5042991A
Cited
US5103598A
Cited
US5009676A
Cited
EP0395088A2
Cited
US4988554A
Cited
US5135546A
Cited
US4997461A
Cited
US5110322A
Cited
US5085671A
Cited
US5035724A
Cited
EP0480133A2
Cited
US5078753A
Cited
US5090968A
Cited
US5201916A
Cited
US5366523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-05 | 1999-09-04 | 2000-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-05 | 2003-09-04 | 2004-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-05 | 2007-09-04 | 2008-03-05 | $7700.00 | Window Closed / Lapsed |