Patent US4209504A successfully refreshed from Google Patents.
US4209504A
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Toothpaste with zeolite polishing agent
Assignee: Blendax GmbH
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Filing: 1978-12-20
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Granted: 1980-06-24
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Expires: 1998-12-20
Abstract
Abstract A toothpaste composition contains an alkali metal aluminum silicate zeolite as the polishing agent base. The composition is non-corrosive to aluminum containers, polishes well without excessive abrasion and is compatible with dental fluorine compounds. A particularly suitable polishing agent is Zeolite A having the empirical formula Na 12 (AlO 2 ) 12 .(SiO 2 ) 12 .27H 2 O.
Inventors
- 👤 Helmut Harth
- 👤 Dieter Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:38
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/26; A61Q; A61Q11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
In an aqueous toothpaste composition having about 15-60% by weight polishing agent, the improvement comprises said polishing agent containing at least 50% by weight of a synthetic alkali aluminum silicate zeolite of the formula x(M.AlO 2 ).ySiO 2 .zH 2 O, wherein M is alkali metal or ammonium, x is a number between 1 and 64, y is a number dependent on X with the determination of y being one-fold to six-fold of x, and z is a number between 0 and 256.
Claim 2
Dependent Claim
83 words
In an aqueous toothpaste composition having about 15-60% by weight polishing agent, the improvement comprises said polishing agent containing at least 50% by weight of a synthetic alkali aluminum silicate zeolite of the formula x(M.AlO 2 ).ySiO 2 .zH 2 O, wherein M is alkali metal or ammonium, x is a number between 1 and 64, y is a number dependent on X with the determination of y being one-fold to six-fold of x, and z is a number between 0 and 256.
Claim 3
Dependent Claim
15 words
The toothpaste composition according to claim 1 wherein the polishing agent is 100% said zeolite.
Claim 4
Dependent Claim
15 words
The toothpaste according to claim 1 wherein said zeolite is a sodium aluminum silicate zeolite.
Claim 5
Dependent Claim
26 words
The toothpaste according to claim 1 wherein said zeolite has the empirical formula Na 12 (AlO 2 ) 12 .(SiO 2 ) 12 .27H 2 O.
Claim 6
Dependent Claim
20 words
The toothpaste according to claim 1 wherein the zeolite has a particle size of about 1 to about 30 microns.
References Cited (Backward Citations)
DE378010C
Cited
US4132771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |