EP0129201A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Oral hygiene compositions
Assignee: Beecham Group PLC
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Filing: 1984-06-13
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Granted: —
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Expires: 2004-06-13
Abstract
Abstract A dentifrice composition comprising (a) a dentally acceptable abrasive selected from calcium carbonate, dicalcium phosphate, an insoluble silicate, calcium bicarbonate, insoluble sodium metaphosphate, alumina and a silica; and (b) an aqueous solution of alkali metal fluoride, alkali metal monofluorophosphate and orthophosphate anions, the latter having a concentration of at least 0.5mM in the aqueous solution, and the solution having a pH of from 7 to 11.
Inventors
- 👤 Susan Ann Duke
- 👤 Adrian Clive Pearl
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:10
CPC Classifications
A; A61; A61Q; A61Q11/00; B; B65; B65B; B65B3/00; B65B3/02; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
1) A dentifrice composition comprising (a) a dentally acceptable abrasive selected from calcium carbonate, dicalcium phosphate,an insoluble silicate, calcium bicarbonate, insoluble sodium metaphosphate, alumina and a silica; and (b) an.aqueous solution of alkali metal fluoride, alkali metal monofluorophosphate and orthophosphate anions, the latter having a concentration of at least 0.5mM in the aqueous solution, and the solution having a pH of from 7 to 11.
Claim 2
Dependent Claim
65 words
1) A dentifrice composition comprising (a) a dentally acceptable abrasive selected from calcium carbonate, dicalcium phosphate,an insoluble silicate, calcium bicarbonate, insoluble sodium metaphosphate, alumina and a silica; and (b) an.aqueous solution of alkali metal fluoride, alkali metal monofluorophosphate and orthophosphate anions, the latter having a concentration of at least 0.5mM in the aqueous solution, and the solution having a pH of from 7 to 11.
Claim 3
Dependent Claim
19 words
2) A dentifrice according to claim 1 containing from 100 ppm to 2500 ppm of fluoride ions in total.
Claim 4
Dependent Claim
35 words
3) A dentifrice according to claim 1 or 2, in which from 10% to 90% of the fluoride is provided by an alkali metal fluoride, and the remainder is provided by an alkali metal monofluorophosphate.
Claim 5
Dependent Claim
30 words
4) A dentifrice according to any one of claims 1 to 3, in which orthophosphate anions are provided by trisodium orthophosphate, disodium hydrogen orthophosphate, tripotassium orthophosphate or dipotassium hydrogen orthophosphate.
Claim 6
Dependent Claim
24 words
5) A dentifrice according to any one of claim 1 to 4, in which the aqueous solution comprises at least ImM dissolved orthophosphate anions.
Claim 7
Dependent Claim
25 words
6) A dentifrice according to any one of claims 1 to 5, in which the aqueous solution has a pH of from 8.5 to 10.5.
Claim 8
Dependent Claim
23 words
7) A dentifrice according to any one of claims 1 to 6, comprising from 15 to 50% by weight of dentally acceptable abrasive.
Claim 9
Dependent Claim
56 words
8) A process for preparing a dentifrice according to any one of claims 1 to 7, which comprises admixing alkali metal fluoride, alkali metal monofluorophosphate and orthophosphate anions in optionally buffered aqueous medium, in relative amounts to produce a pH of from 7 to 11, and combining the resultant aqueous solution with a dentally acceptable abrasive.
References Cited (Backward Citations)
No citation records indexed.
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