Dentifrice

{
  "publication_number": "US4022881A",
  "country": "US",
  "kind": "A",
  "title": "Dentifrice",
  "abstract": "A dentifrice containing as combined thickening agent 5-30% high viscosity hydroxyethylcellulose and 70-95% sodium carboxymethylcellulose, preferably 10-15% of the former and 85-90% of the latter and being from 0.1-5% by weight of the total dentifrice formulation.",
  "claims": [
    "1. A toothpaste formulation comprising about 20% w/w glycerine, about 5% w/w of 70% w/w of sorbitol solution, about 20% water, about 45% water-insoluble abrasive and about 0.1-5% w/w of combined thickening agent effective in the presence of a fluorine-containing compound and which makes the toothpaste formulation stable to degradation and resistant to syneresis, said combined thickening agent being about 90% sodium carboxymethylcellulose blended with about 10% hydroxyethylcellulose having a viscosity greater than 1500 cps in a 1% aqueous solution as measured in a Brookfield Viscometer.",
    "2. A toothpaste formulation according to claim 1 in which the combined thickening agent amounts to about 1% w/w.",
    "3. A toothpaste formulation according to claim 1 in which is incorporated a fluorine-containing compound in an amount of about 0.8% w/w.",
    "4. A toothpaste formulation according to claim 3 in which the fluorine-containing compound is sodium monofluorophosphate."
  ],
  "cpc": [
    "A61K 8/731",
    "A61K 2800/594",
    "A61Q 11/00"
  ],
  "assignees": [
    "BEECHAM GROUP LTD"
  ],
  "filing_date": "1975-06-10",
  "publication_date": "1977-05-10",
  "grant_date": "1977-05-10",
  "priority_date": "1974-06-18",
  "application_number": "US-58569975-A",
  "family_id": "10250754",
  "citations": [
    "US2618632A",
    "US2839448A",
    "US3014808A",
    "US3112247A",
    "US3151027A",
    "US3251824A",
    "US3266996A",
    "US3448100A",
    "US3510553A",
    "US3538230A",
    "US3804946A",
    "US3903252A"
  ]
}