US3685218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass polishing compositions based on zircon and/or zirconia and zirconium fluosulfate and polishing process using the same
Assignee: Individual
•
Filing: 1970-12-08
•
Granted: 1972-08-22
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Expires: 1990-12-08
Abstract
Abstract Synergistic glass polishing compositions are provided comprising zirconium oxide and/or zirconium silicate as the polishing oxides, and a zirconium fluosulfate as an additive enhancing the polishing action of the oxide and/or silicate. A process also is provided for polishing glass with a felt applicator using a glass polishing composition comprising zirconium oxide and/or zirconium silicate and a zirconium fluosulfate, at a pH with the range from about 3.5 to about 14.
Inventors
- 👤 James Richard Gambale
- 👤 Henry Asaph Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:11
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
17 words
A glass polishing composition in accordance with claim 1, in which the polishing compound is zirconium oxide.
Claim 2
Dependent Claim
17 words
A glass polishing composition in accordance with claim 1, in which the polishing compound is zirconium silicate.
Claim 3
Dependent Claim
23 words
A glass polishing composition in accordance with claim 1, in which the polishing compound is a mixture of zirconium oxide and zirconium silicate.
Claim 4
Dependent Claim
49 words
A glass polishing composition in accordance with claim 4, in which the amount of zirconium oxide is within the range from about 25 to about 75 percent, and the amount of zirconium silicate is within the range from about 75 to 25 percent, by weight of the polishing compound.
Claim 5
Dependent Claim
19 words
A glass polishing composition in accordance with claim 1, in which the zirconium fluosulfate is a basic zirconium fluosulfate.
Claim 6
Dependent Claim
33 words
A glass polishing composition in accordance with claim 1, in which the amount of zirconium fluosulfate is within the range from about 10 to about 35 percent by weight of the polishing compound.
Claim 7
Dependent Claim
21 words
A glass polishing composition in accordance with claim 1, having a pH within the range from about 3.5 to about 7.
Claim 8
Dependent Claim
21 words
A glass polishing composition in accordance with claim 1, having a pH within the range from about 5 to about 7.
Claim 9
Dependent Claim
24 words
A glass polishing composition in accordance with claim 1, including a buffering agent in an amount to maintain a pH within the stated range.
Claim 10
Dependent Claim
42 words
A glass polishing composition according to claim 1, in the form of an aqueous slurry having a pH within the range from about 3.5 to about 14 and containing from about 5 to about 60 percent by weight of the polishing compound.
Claim 11
Dependent Claim
26 words
A glass polishing composition according to claim 1, in which the particle size of the polishing comPound and the zirconium fluosulfate is less than 20 microns.
Claim 12
Dependent Claim
41 words
A process for polishing glass, which comprises applying to the surface of the glass a composition consisting essentially of a slurry in water of a polishing composition according to claim 1, and polishing the glass therewith using a felt polishing applicator.
Claim 13
Dependent Claim
34 words
A process in accordance with claim 13, in which an acidic compound is added from time to time, to maintain pH within the stated range, and the composition is reused for successive glass articles.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |