US4515910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymeric resin for treatment of teeth
Assignee: Research Corp Technologies Inc
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Filing: 1983-01-26
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Granted: 1985-05-07
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Expires: 2003-01-26
Abstract
Abstract An interpolymeric resin and composition therefrom for treating teeth to prevent dental caries by forming a protective barrier and providing a source of fluoride ions for release adjacent the surface of the tooth. The resin includes an anion-exchange-site bearing monomer carrying fluoride ions, an acrylic comonomer, a crosslinking monomer, and, optionally, a wetting/etching monomer. The resin may have a high degree of crosslinking which then may include filler material to form a composition.
Inventors
- 👤 Henry R. Rawls
- 👤 Allan E. Querens
- 👤 Barbara F. Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:05
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61K2800/00; A61K2800/40; A61K2800/54
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
71 words
An acrylic controlled fluoride releasing interpolymer comprising the reaction product of: a. an anion-exchange-site bearing monomer carrying a fluoride ion in an amount sufficient to provide a caries-inhibiting amount of fluoride; b. a copolymerizable acrylic monomer selected from the group consisting of alkyl acrylates and methacrylates wherein the alkyl group contains no more than about 12 carbon atoms; and c. a monomer which is a crosslinker in the resulting interpolymeric resin.
Claim 2
Dependent Claim
71 words
An acrylic controlled fluoride releasing interpolymer comprising the reaction product of: a. an anion-exchange-site bearing monomer carrying a fluoride ion in an amount sufficient to provide a caries-inhibiting amount of fluoride; b. a copolymerizable acrylic monomer selected from the group consisting of alkyl acrylates and methacrylates wherein the alkyl group contains no more than about 12 carbon atoms; and c. a monomer which is a crosslinker in the resulting interpolymeric resin.
Claim 3
Dependent Claim
11 words
The interpolymer of claim 1 which further comprises a wetting/etching monomer.
Claim 4
Dependent Claim
11 words
Theinterpolymer of claim 2 wherein said wetting/etching monomer is methacrylic acid.
Claim 5
Dependent Claim
30 words
The interpolymer of claim 1 wherein said acrylic monomer is included in an amount of from about 10% to about 90% based on the volume of unfilled prepolymerization reaction mixture.
Claim 6
Dependent Claim
15 words
The interpolymer of claim 4 wherein said amount is from about 50% to about 75%.
Claim 7
Dependent Claim
31 words
The interpolymer of claim 1 wherein said fluoride carrying monomer is included in an amount of from about 1% to about 40% based on the volume of unfilled prepolymerized reaction mixture.
Claim 8
Dependent Claim
15 words
The interpolymer of claim 6 wherein said amount is from about 10% to about 30%.
Claim 9
Dependent Claim
27 words
The interpolymer of claim 1 wherein said crosslinker is selected from the group consisting of ethylene glycol dimethacrylate, trimethylpropane trimethacrylate, triethylene glycol dimethacrylate, and polyethylene glycol dimethacrylate.
Claim 10
Dependent Claim
32 words
The interpolymer of claim 1 wherein said crosslinker is included in said interpolymer in an amount of from about 0.5% to about 80% based on the volume of unfilled prepolymerization reaction mixture.
Claim 11
Dependent Claim
15 words
The interpolymer of claim 9 wherein said amount is from about 10% to about 25%.
Claim 12
Dependent Claim
25 words
The interpolymer of claim 1 wherein said fluoride carrying monomer is selected from the group consisting of the hydrogen fluoride salt of aminoalkylacrylates and aminoalkylmethacrylates.
Claim 13
Dependent Claim
64 words
The interpolymer of claim 11 wherein said aminoalkylacrylates and aminoalkylmethacrylates have the general formula ##STR4## in which R 1 is H or CH 3 , X is an integer of 1 to 12, R 2 is H or an alkyl group of C 1 to C 4 , and R 3 is H or an alkyl group of C 1 to C 12 .
Claim 14
Dependent Claim
15 words
The interpolymer of claim 12 wherein said fluoride carrying monomer is t-butylaminoethyl methacrylate hydrogen fluoride.
Claim 15
Dependent Claim
14 words
The interpolymer of claim 12 wherein said fluoride carrying monomer is N,N,N-trimethylamino ethylmethacrylate fluoride.
Claim 16
Dependent Claim
35 words
A composition of matter comprising the interpolymer of claim 1 which is highly crosslinked and a filler in an amount of from about 10 to about 90% based on the total weight of said composition.
Claim 17
Dependent Claim
14 words
The composition of matter of claim 15 wherein said filler is an inorganic silicate.
Claim 18
Dependent Claim
19 words
The composition of matter of claim 16 wherein said filler is one of silica, silanized silica, glass and quartz.
Claim 19
Dependent Claim
12 words
The composition of matter of claim 15 wherein said filler is alumina.
Claim 20
Dependent Claim
16 words
A method of preventing dental caries comprising impregnating a tooth with the interpolymer of claim 1.
Claim 21
Dependent Claim
19 words
A method of preventing dental caries comprising impregnating a tooth with the interpolymer of claim 1 and a polyalkylacrylate.
Claim 22
Dependent Claim
16 words
A method of preventing dental caries comprising depositing the composition of claim 1 on a tooth.
Claim 23
Dependent Claim
24 words
A method of preventing dental caries comprising use of a fixed or removable oral device fabricated by use of the interpolymer of claim 1.
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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) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |