US5584896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated abrasive article having diluent particles and shaped abrasive particles
Assignee: 3M Co
•
Filing: 1995-06-21
•
Granted: 1996-12-17
•
Expires: 2015-06-21
Abstract
Abstract Seated abrasive articles containing particles having specified shapes. The coated abrasive 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: 12
Claim 1
Independent Claim
77 words
A coated abrasive article comprising: (a) a backing having two major surfaces; (b) at least one binder; (c) an abrasive coating comprising (1) shaped abrasive particles, wherein the ratio of the length of said shaped abrasive particles to the maximum cross-sectional dimension of said shaped abrasive particles is at least 2 to 1, and (2) diluent agglomerates; said at least one binder serving to bond said abrasive coating to at least one major surface of said backing.
Claim 2
Dependent Claim
77 words
A coated abrasive article comprising: (a) a backing having two major surfaces; (b) at least one binder; (c) an abrasive coating comprising (1) shaped abrasive particles, wherein the ratio of the length of said shaped abrasive particles to the maximum cross-sectional dimension of said shaped abrasive particles is at least 2 to 1, and (2) diluent agglomerates; said at least one binder serving to bond said abrasive coating to at least one major surface of said backing.
Claim 3
Dependent Claim
39 words
A coated abrasive article according to claim 1, wherein said diluent agglomerates comprise adhesive and a plurality of individual particles selected from the group consisting of (1) abrasive particles, (2) non-abrasive particles, and (3) abrasive particles and non-abrasive particles.
Claim 4
Dependent Claim
21 words
A coated abrasive article according to claim 1, wherein said shaped abrasive particles have cross-sectional dimensions that vary along said length.
Claim 5
Dependent Claim
17 words
A coated abrasive article according to claim 1, wherein said ratio is at least 3 to 1.
Claim 6
Dependent Claim
16 words
A coated abrasive article according to claim 1, wherein said shaped abrasive particles comprise alpha alumina.
Claim 7
Dependent Claim
20 words
A coated abrasive article according to claim 5, wherein said shaped abrasive particles comprise alpha alumina and a nucleating agent.
Claim 8
Dependent Claim
36 words
A coated abrasive article according to claim 2, wherein said plurality of individual abrasive particles is selected from the group consisting of alumina, diamond, cubic boron nitride, silicon carbide, silicon nitride, ceria, alumina zirconia, and garnet.
Claim 9
Dependent Claim
21 words
A coated abrasive article according to claim 2, wherein said non-abrasive particles have a Mohs' hardness of less than about 7.
Claim 10
Dependent Claim
47 words
A coated abrasive article according to claim 2, wherein said non-abrasive particles are selected from the group consisting of metal carbonates, silica, silicates, metal sulfates, gypsum, vermiculite, wood flour, aluminum trihydrate, carbon black, metal oxides, metal sulfites, halide salts, sulfur, organic sulfur compounds, graphite, and metallic sulfides.
Claim 11
Dependent Claim
20 words
A coated abrasive article according to claim 1, wherein said shaped abrasive particles reside substantially between said diluent agglomerate particles.
Claim 12
Dependent Claim
33 words
A coated abrasive article according to claim 1, wherein the ratio of the length of said shaped abrasive particles to the size of said diluent agglomerates ranges from about 2.5:1 to about 0.5:1.
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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) | 1999-12-17 | 2000-06-17 | 2000-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-17 | 2004-06-17 | 2004-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-17 | 2008-06-17 | 2008-12-17 | $7700.00 | Window Closed / Lapsed |