US4122162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral composition for plaque and caries inhibition
Assignee: Individual
•
Filing: 1976-06-14
•
Granted: 1978-10-24
•
Expires: 1996-06-14
Abstract
Abstract Oral compositions for plaque and caries inhibition contain a salt of an oxo-acid (formerly called oxy-acid) of phosphorus or a mixed salt of an oxo-acid of phosphorus and hydrofluoric acid with an orgaic base.
Inventors
- 👤 Hans R. Muehlemann
- 👤 Hans Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:28
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61K8/55
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
222 words
An oral composition selected from the group consisting of toothpastes, transparent toothpastes, gels, mouth rinses, sprays, and chewing gum for plaque and caries inhibition by topical application, said composition containing a water soluble mixed salt formed by reaction of an oxo-acid of phosphorus with a highly basic organic amine base and hydrofluoric acid, said mixed salt being present in sufficient amounts to be effective in inhibition of plaque and caries in said composition; and said organic amine base being of the formula R-X, where R is selected from the group consisting of an alkyl group having 6 to 30 carbon atoms, an alkenyl group having 6 to 30 carbon atoms, an alkoxy group having 2 to 30 carbon atoms, an alkylol group having 2 to 30 carbon atoms, an aralkyl group which may be substituted with an alkyl group having a chain length of 2 to 30 carbon atoms, and X is selected from the group consisting of: (a) (NH 2 ) y where y is an integer from 2 to 3; (b) the grouping ##STR6## where x is an integer from 1 to 3; (c) the grouping ##STR7## where a, b, and c are the same or different numbers with a mean value such that the sum a + b + c = 3 to 36; and (d) the grouping ##STR8##
Claim 2
Dependent Claim
222 words
An oral composition selected from the group consisting of toothpastes, transparent toothpastes, gels, mouth rinses, sprays, and chewing gum for plaque and caries inhibition by topical application, said composition containing a water soluble mixed salt formed by reaction of an oxo-acid of phosphorus with a highly basic organic amine base and hydrofluoric acid, said mixed salt being present in sufficient amounts to be effective in inhibition of plaque and caries in said composition; and said organic amine base being of the formula R-X, where R is selected from the group consisting of an alkyl group having 6 to 30 carbon atoms, an alkenyl group having 6 to 30 carbon atoms, an alkoxy group having 2 to 30 carbon atoms, an alkylol group having 2 to 30 carbon atoms, an aralkyl group which may be substituted with an alkyl group having a chain length of 2 to 30 carbon atoms, and X is selected from the group consisting of: (a) (NH 2 ) y where y is an integer from 2 to 3; (b) the grouping ##STR6## where x is an integer from 1 to 3; (c) the grouping ##STR7## where a, b, and c are the same or different numbers with a mean value such that the sum a + b + c = 3 to 36; and (d) the grouping ##STR8##
Claim 3
Dependent Claim
27 words
An oral composition according to claim 1, wherein the composition is selected from the group consisting of toothpastes, transparent toothpastes, gels, mouth rinses, sprays and chewing gum.
Claim 4
Dependent Claim
13 words
A composition according to claim 2 wherein the oral composition is a toothpaste.
Claim 5
Dependent Claim
14 words
A composition according to claim 2 wherein the oral composition is a mouth rinse.
Claim 6
Dependent Claim
25 words
A composition according to claim 1 wherein the oxo-acid of phosphorus is selected from the group consisting of orthophosphoric acids, pyrophosphoric acids and metaphosphoric acids.
Claim 7
Dependent Claim
33 words
A composition to claim 1 wherein R is selected from the group consisting of alkyl groups of 14 to 18 carbon atoms and mixtures of alkyl groups having 14 to 18 carbon atoms.
Claim 8
Dependent Claim
16 words
A composition according to claim 5 wherein the oxo-acid of phosphorus is a cyclic metaphosphoric acid.
Claim 9
Dependent Claim
12 words
A composition according to claim 6 wherein R is a tallow-alkyl group.
References Cited (Backward Citations)
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US2689170A
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US2772204A
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US3413326A
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US3083143A
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US3642979A
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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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |