Patent US3966432A successfully refreshed from Google Patents.
US3966432A
Expired / Lapsed
US
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Liquid abrasive compositions containing a silicate suspending agent
Assignee: Colgate Palmolive Co
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Filing: 1974-06-14
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Granted: 1976-06-29
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Expires: 1994-06-14
Abstract
Abstract There is disclosed a liquid abrasive composition comprising an aqueous suspension of a substantially water-insoluble particulate abrasive, a nonionic surfactant and a suspending agent selected from natural and synthetic clays, hydrophobically treated clays, fumed silica, magnesium montmorillonite, and complex magnesium aluminum silicates.
Inventors
- 👤 George Geoffrey Rayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:58
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D17/00; C11D17/0008; C11D17/0013; C11D3/1253; C11D3/1266
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
47 words
A liquid abrasive composition comprising an aqueous suspension of about 25-60% of a substantially waterinsoluble particulate abrasive, about 3-8% of a nonionic surfactant and about 0.25-1.0% of suspending agent selected from natural and synthetic clays, hydrophobically treated clays, fumed silica, magnesium montmorillonite, and complex magnesium aluminum silicates.
Claim 2
Dependent Claim
47 words
A liquid abrasive composition comprising an aqueous suspension of about 25-60% of a substantially waterinsoluble particulate abrasive, about 3-8% of a nonionic surfactant and about 0.25-1.0% of suspending agent selected from natural and synthetic clays, hydrophobically treated clays, fumed silica, magnesium montmorillonite, and complex magnesium aluminum silicates.
Claim 3
Dependent Claim
50 words
A liquid abrasive composition as claimed in claim 1 wherein the particulate abrasive is of such particle size that, when dry, substantially all of it will pass through a sieve with apertures of 104 microns and at least 80% by weight passes through a sieve with apertures of 53 microns.
Claim 4
Dependent Claim
20 words
A liquid abrasive composition as claimed in claim 1 the abrasive of which is selected from calcite, silica and labradorite.
Claim 5
Dependent Claim
30 words
A liquid abrasive composition as claimed in claims 1 the nonionic surfactant of which is selected from dialkylolamides, condensation products of lower alkylene oxides with alkyl phenols, and mixtures thereof.
Claim 6
Dependent Claim
16 words
A liquid abrasive composition as claimed in claim 4 wherein the nonionic surfactant comprises coconut diethanolamide.
Claim 7
Dependent Claim
42 words
A liquid abrasive composition as claimed in claim 1 wherein the suspending agent is an inorganic complex silicate clay having the formula (Si 8 Mg 5 .1 Li 0 .6 H 7 .6 O 24 ) 0 .6 - Na +0 .6.
Claim 8
Dependent Claim
19 words
A liquid abrasive composition as claimed in claim 1 which contains approximately 55% by weight of the particulate abrasive.
Claim 9
Dependent Claim
18 words
A liquid abrasive composition as claimed in claim 1 which contains 4-5% by weight of the nonionic surfactant.
Claim 10
Dependent Claim
18 words
A liquid abrasive composition as claimed in claim 1 which contains 0.3 - 0.5% of the suspending agent.
Claim 11
Dependent Claim
14 words
A liquid abrasive composition as claimed in claims 1 which also contains a humectant.
Claim 12
Dependent Claim
19 words
A liquid abrasive composition as claimed in claim 10 which contains 0.5 - 5% by weight of the humectant.
Claim 13
Dependent Claim
25 words
A liquid abrasive composition as claimed in claim 1 which also contains at least one additive selected from coloring agents, perfumes, bleaching agents and germicides.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |