US5603739A
Expired / Lapsed
US
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Abrasive suspension system
Assignee: Diamond Scientific Inc
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Filing: 1995-06-09
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Granted: 1997-02-18
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Expires: 2015-06-09
Abstract
Abstract The invention is directed to an abrasive composition comprising an abrasive component in a liquid base component and methods of making the same. More specifically, the present invention is directed to an abrasive composition comprising water, an alcohol, a surfactant, polymer, and an abrasive and methods of making the same.
Inventors
- 👤 Edward J. Neuland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:11
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1463; B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
45 words
An abrasive composition consisting essentially of: from about 5% to about 94% deionized water; from about 5% to about 94% polyhydric alcohol; from about 0.00075% to about 0.5% of surfactant; from about 0.0015% to about 1% polymer; and from about 0.001% to about 50% abrasives.
Claim 2
Dependent Claim
45 words
An abrasive composition consisting essentially of: from about 5% to about 94% deionized water; from about 5% to about 94% polyhydric alcohol; from about 0.00075% to about 0.5% of surfactant; from about 0.0015% to about 1% polymer; and from about 0.001% to about 50% abrasives.
Claim 3
Dependent Claim
19 words
An abrasive composition as recited in claim 1 wherein said water has a resistivity of at least 6 megohms.
Claim 4
Dependent Claim
24 words
An abrasive composition as recited in claim 1 wherein said alcohol is selected from the group consisting of glycerol, ethylene glycol or propylene glycol.
Claim 5
Dependent Claim
13 words
An abrasive composition as recited in claim 1 wherein said surfactant comprises ethanolamine.
Claim 6
Dependent Claim
28 words
An abrasive composition as recited in claim 1 wherein said abrasives are selected from the group consisting of diamond, boron nitride, boron carbide, aluminum oxide, and silicon carbide.
Claim 7
Dependent Claim
15 words
An abrasive composition as recited in claim 1 wherein the polymer is an acrylic polymer.
Claim 8
Dependent Claim
13 words
An abrasive composition as recited in claim 1 wherein the polymer is crosslinked.
Claim 9
Dependent Claim
54 words
An abrasive composition consisting essentially of: from about 40% to about 79% by weight deionized water; from about 20% to about 59% by polyhydric alcohol; from about 0.0015% to about 0.025% by weight surfactant; from about 0.005% to about 0.2% by weight acrylic polymer; and from about 0.005% to about 30% by weight abrasives.
Claim 10
Dependent Claim
54 words
An abrasive composition consisting essentially of: from about 40% to about 79% by weight deionized water; from about 20% to about 59% by polyhydric alcohol; from about 0.0015% to about 0.025% by weight surfactant; from about 0.005% to about 0.2% by weight acrylic polymer; and from about 0.005% to about 30% by weight abrasives.
Claim 11
Dependent Claim
19 words
An abrasive composition as recited in claim 8 wherein said water has a resistivity of at least 18 megohms.
Claim 12
Dependent Claim
16 words
An abrasive composition as recited in claim 8 wherein said polyhydric alcohol is a polyalkylene glycol.
Claim 13
Dependent Claim
28 words
An abrasive composition as recited in claim 8 wherein said abrasives are selected from the group consisting of diamond, boron nitride, boron carbide, aluminum oxide, and silicon carbide.
Claim 14
Dependent Claim
13 words
An abrasive composition as recited in claim 8 wherein the polymer is crosslinked.
Claim 15
Independent Claim
106 words
A method of making an abrasive composition having an abrasive component and a liquid base component comprising: (a) preparation of the abrasive component by (i) mixing abrasive particles with a caustic solution to form a mixture; (ii) optionally heating the mixture; (iii) adjusting the pH to about 7; (iv) adding a polymeric acid salt to the mixture; (v) adding a surfactant in a sufficient amount to adjust the pH of the mixture to about 7; (b) preparation of the liquid base component by mixing a polymer with a polyhydric alcohol solution; and (c) mixing the abrasive and liquid base components together to form the abrasive composition.
Claim 16
Independent Claim
106 words
A method of making an abrasive composition having an abrasive component and a liquid base component comprising: (a) preparation of the abrasive component by (i) mixing abrasive particles with a caustic solution to form a mixture; (ii) optionally heating the mixture; (iii) adjusting the pH to about 7; (iv) adding a polymeric acid salt to the mixture; (v) adding a surfactant in a sufficient amount to adjust the pH of the mixture to about 7; (b) preparation of the liquid base component by mixing a polymer with a polyhydric alcohol solution; and (c) mixing the abrasive and liquid base components together to form the abrasive composition.
Claim 17
Dependent Claim
10 words
The method of claim 13 wherein the surfactant is ethanolamine.
Claim 18
Dependent Claim
11 words
The method of claim 14 wherein the polymer is acrylic polymer.
References Cited (Backward Citations)
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