Patent US4364927A successfully refreshed from Google Patents.
US4364927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonated naphthalene formaldehyde condensation polymers as dental plaque barriers
Assignee: Johnson and Johnson Hospital Services Inc
•
Filing: 1980-07-25
•
Granted: 1982-12-21
•
Expires: 2000-07-25
Abstract
Abstract Compositions and methods for preventing the attachment of dental plaque to the surfaces of the teeth of mammals comprise condensation polymers of formaldehyde with naphthalene sulfonic acid as well as the pharmaceutically acceptable salts thereof in a pharmaceutically acceptable vehicle, and the periodic application thereof of teeth.
Inventors
- 👤 Tibor Sipos
- 👤 Henry F. Motkowski, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:18
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/745; A61K31/795; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61Q; A61Q11/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
104 words
An oral hygiene composition comprising an effective amount for preventing deposition of dental plaque on teeth of a sulfonated condensation polymer of formaldehyde with naphthalene, said polymer having repeating units of structure: ##STR3## wherein M is selected from the group consisting of lithium, sodium, potassium, calcium, magnesium, zinc, aluminum, hydrogen, ammonium, and substituted ammonium ions derived from pharmaceutically acceptable organic amines, and p has an average value in the range of from about 0.4 to about 1.4, said polymer having a molecular weight in the range of from about 500 to about 5,000, in a pharmaceutically acceptable oral hygiene vehicle compatible with said polymer.
Claim 2
Dependent Claim
104 words
An oral hygiene composition comprising an effective amount for preventing deposition of dental plaque on teeth of a sulfonated condensation polymer of formaldehyde with naphthalene, said polymer having repeating units of structure: ##STR3## wherein M is selected from the group consisting of lithium, sodium, potassium, calcium, magnesium, zinc, aluminum, hydrogen, ammonium, and substituted ammonium ions derived from pharmaceutically acceptable organic amines, and p has an average value in the range of from about 0.4 to about 1.4, said polymer having a molecular weight in the range of from about 500 to about 5,000, in a pharmaceutically acceptable oral hygiene vehicle compatible with said polymer.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein M is a metal selected from the group consisting of potassium, lithium, sodium, calcium, magnesium, zinc and aluminum.
Claim 4
Dependent Claim
10 words
The composition of claim 1 wherein p is about 1.
Claim 5
Dependent Claim
18 words
The composition of claim 3 wherein said polymer is a condensation polymer of formaldehyde with 2-naphthalene sulfonic acid.
Claim 6
Dependent Claim
19 words
The composition of claim 4 wherein said polymer has a molecular weight of from about 2,000 to about 3,000.
Claim 7
Dependent Claim
21 words
A method of preventing deposition of dental plaque on teeth comprising periodically applying to the teeth a composition of claim 1.
Claim 8
Dependent Claim
19 words
The method of claim 6 wherein said composition is applied from about 1 to about 3 times per day.
Claim 9
Dependent Claim
45 words
The composition of claim 1 in the form of an oral hygiene formulation selected from the group consisting of mouthwashes, mouthrinses, irrigating solutions, abrasive gel dentifrices, non-abrasive gel dentifrices, denture cleansers, coated dental floss, coated interdental stimulators, chewing gums, lozenges, breath fresheners, foams and sprays.
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) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |