Patent US5378252A successfully refreshed from Google Patents.
US5378252A
Expired / Lapsed
US
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Abrasive articles
Assignee: 3M Co
•
Filing: 1993-09-03
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Granted: 1995-01-03
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Expires: 2013-09-03
Abstract
Abstract An abrasive article comprising a plurality of abrasive particles bonded together, bonded into a substrate, or bonded onto a backing by a cured binder, the cured binder being formed by solidifying a binder precursor comprising an aqueous acrylate polymer emulsion. In preferred embodiments, the binder precursor includes a phenolic resin.
Inventors
- 👤 Robert A. Follensbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:53
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C09K3/1427; B; B24; B24C; B24C1/00; B24D; B24D11/00; B24D3/00; B24D3/02; B24D3/20; B24D3/28
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
40 words
An abrasive article comprising a plurality of abrasive particles bonded into a substrate or bonded onto a backing by means of a cured binder, said cured binder being formed by curing a binder precursor comprising an aqueous acrylate polymer emulsion.
Claim 2
Dependent Claim
40 words
An abrasive article comprising a plurality of abrasive particles bonded into a substrate or bonded onto a backing by means of a cured binder, said cured binder being formed by curing a binder precursor comprising an aqueous acrylate polymer emulsion.
Claim 3
Dependent Claim
27 words
The abrasive article of claim 1 wherein said article is selected from the group consisting of coated abrasive articles, lapping coated abrasive articles, and nonwoven abrasive articles.
Claim 4
Dependent Claim
13 words
The article of claim 1 wherein said binder precursor is curable by radiation.
Claim 5
Dependent Claim
14 words
The article of claim 3 wherein said binder precursor is curable by ultraviolet radiation.
Claim 6
Dependent Claim
45 words
The article of claim 1 wherein said binder precursor further comprises a thermosetting resin selected from the group consisting of phenolic resins, aminoplast resins, urethane resins, epoxy resins, ethylenically unsaturated resins, acrylated isocyanurate resins, urea-formaldehyde resins, acrylated urethane resins, acrylated epoxy resins, and mixtures thereof.
Claim 7
Dependent Claim
12 words
The article of claim 5 wherein said resin is a phenolic resin.
Claim 8
Dependent Claim
34 words
The article of claim 6 wherein the ratio of the weight of solids in said acrylate polymer emulsion to the weight of solids in said phenolic resin is from about 1:7 to about 9:1.
Claim 9
Dependent Claim
18 words
The article of claim 1 wherein said acrylate polymer emulsion includes a dispersing agent to stabilize the emulsion.
Claim 10
Dependent Claim
16 words
The article of claim 1 wherein said acrylate polymer in said emulsion is an acrylated urethane.
Claim 11
Dependent Claim
16 words
The article of claim 1, wherein said acrylate polymer in said emulsion is a acrylated polyester.
Claim 12
Dependent Claim
14 words
The article of claim 1 wherein said binder precursor further comprises a latex emulsion.
Claim 13
Dependent Claim
13 words
The article of claim 11 wherein said binder precursor further comprises polyvinyl alcohol.
Claim 14
Dependent Claim
13 words
The article of claim 1 wherein said binder precursor further comprises polyvinyl alcohol.
Claim 15
Dependent Claim
33 words
An abrasive article comprising a plurality of abrasive particles bonded together by means of a cured binder, said cured binder being formed by curing a binder precursor comprising an aqueous acrylate polymer emulsion.
Claim 16
Dependent Claim
33 words
An abrasive article comprising a plurality of abrasive particles bonded together by means of a cured binder, said cured binder being formed by curing a binder precursor comprising an aqueous acrylate polymer emulsion.
Claim 17
Dependent Claim
13 words
The article of claim 14 wherein said binder precursor is curable by radiation.
Claim 18
Dependent Claim
14 words
The article of claim 15 wherein said binder precursor is curable by ultraviolet radiation.
Claim 19
Dependent Claim
45 words
The article of claim 14 wherein said binder precursor further comprises a thermosetting resin selected from the group consisting of phenolic resins, aminoplast resins, urethane resins, epoxy resins, ethylenically unsaturated resins, acrylated isocyanurate resins, urea-formaldehyde resins, acrylated urethane resins, acrylated epoxy resins, and mixtures thereof.
Claim 20
Dependent Claim
12 words
The article of claim 17 wherein said resin is a phenolic resin.
Claim 21
Dependent Claim
34 words
The article of claim 18 wherein the ratio of the weight of solids in said acrylate polymer emulsion to the weight of solids in said phenolic resin is from about 1:7 to about 9:1.
Claim 22
Dependent Claim
18 words
The article of claim 14 wherein said acrylate polymer emulsion includes a dispersing agent to stabilize the emulsion.
Claim 23
Dependent Claim
16 words
The article of claim 14 wherein said acrylate polymer in said emulsion is an acrylated urethane.
Claim 24
Dependent Claim
16 words
The article of claim 14, wherein said acrylate polymer in said emulsion is an acrylated polyester.
Claim 25
Dependent Claim
14 words
The article of claim 14 wherein said binder precursor further comprises a latex emulsion.
Claim 26
Dependent Claim
13 words
The article of claim 23 wherein said binder precursor further comprises polyvinyl alcohol.
Claim 27
Dependent Claim
13 words
The article of claim 14 wherein said binder precursor further comprises polyvinyl alcohol.
Claim 28
Independent Claim
53 words
A method of forming an abrasive article comprising the steps of: providing a binder precursor comprising an aqueous acrylate polymer emulsion; applying said binder precursor to a substrate; applying abrasive particles to said binder precursor; at least partially curing said binder precursor and substantially removing the water from said aqueous acrylate polymer emulsion.
Claim 29
Independent Claim
53 words
A method of forming an abrasive article comprising the steps of: providing a binder precursor comprising an aqueous acrylate polymer emulsion; applying said binder precursor to a substrate; applying abrasive particles to said binder precursor; at least partially curing said binder precursor and substantially removing the water from said aqueous acrylate polymer emulsion.
Claim 30
Dependent Claim
22 words
The method of claim 26 further comprising the step of partially curing said binder precursor prior to applying said abrasive particles thereto.
Claim 31
Dependent Claim
14 words
The method of claim 26 wherein said binder precursor is cured by radiation energy.
Claim 32
Dependent Claim
14 words
The method of claim 26 wherein said binder precursor further comprises a phenolic resin.
Claim 33
Dependent Claim
33 words
The method of claim 29 wherein the ratio of the weight of solids in said acrylate polymer emulsion to the weight of solids in said phenolic resin is from about 1:7 to 9:1.
Claim 34
Independent Claim
53 words
A method of forming an abrasive article comprising the steps of: providing a binder precursor comprising an aqueous acrylate polymer emulsion; dispersing a plurality of abrasive particles in said binder precursor to form a slurry; at least partially curing said binder precursor and substantially removing the water from said aqueous acrylate polymer emulsion.
Claim 35
Independent Claim
53 words
A method of forming an abrasive article comprising the steps of: providing a binder precursor comprising an aqueous acrylate polymer emulsion; dispersing a plurality of abrasive particles in said binder precursor to form a slurry; at least partially curing said binder precursor and substantially removing the water from said aqueous acrylate polymer emulsion.
Claim 36
Dependent Claim
19 words
The method of claim 31 further comprising the step of applying said slurry to a substrate prior to curing.
Claim 37
Dependent Claim
23 words
The method of claim 31 further comprising the step of molding said slurry to form a shape while the slurry is being cured.
Claim 38
Dependent Claim
14 words
The method of claim 31 wherein said binder precursor further comprises a phenolic resin.
Claim 39
Dependent Claim
33 words
The method of claim 34 wherein the ratio of the weight of solids in said acrylate polymer emulsion to the weight of solids in said phenolic resin is from about 1:7 to 9:1.
Claim 40
Dependent Claim
16 words
The method of claim 31 wherein said acrylate polymer in said emulsion is an acrylated polyester.
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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) | 1998-01-02 | 1998-07-04 | 1999-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-02 | 2002-07-04 | 2003-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-02 | 2006-07-04 | 2007-01-03 | $7700.00 | Window Closed / Lapsed |