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US4849213A Expired / Lapsed US ⏱️ 0.0 years remaining

Dental preparation, article and method for storage and delivery therof

Assignee: Block Drug Co Inc
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Filing: 1987-06-19
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Granted: 1989-07-18
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Expires: 2007-06-19
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Abstract

Abstract A composition useful in combatting gum disease including: (a) a gel component including (i) about 0.1-10% by weight of hydrogen peroxide; (ii) about 0.05-5.0% by weight of a water-dispersible copolymer of acrylic acid cross-linked with polyallyl sucrose; (iii) about zero to about 2.0% by weight of a nonionic cellulose stabilizer; (iv) a neutralizing agent selected from the group consisting of sodium hydroxide, potassium hydroxide, triethanolamine, diisopropylamine and ammonia in an amount sufficient to raise the gel pH to about 3-6.0; and (v) purified water; (b) a paste component including (i) about 2-60% sodium bicarbonate; (ii) about 1-6% of a salt selected from the group consisting of NaCl, MgCl 2 , MgSO 4 , Na 2 SO 4 , and K 2 SO 4 ; (iii) about 2-60% of a humectant selected from the group consisting of glycerin, sorbitol, polyethylene glycol, propylene glycol, polypropylene glycol, an ethoxylated lower fatty alcohol, a propoxylated lower fatty alcohol and mixtures thereof; (iv) about 0.1-5% of a thickener stabilizer selected from the group consisting of cellulose gum, magnesium aluminum silicate and mixtures thereof; (v) about 1-30% of a stabilizing polishing agent selected from the group consisting of bentonite, titanium dioxide, silica, magnesium, oxide and mixtures thereof; and (vi) purified water; the paste component and gel component being combined immediately prior to use.

Inventors

  • 👤 Hans A. Schaeffer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 06:59
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/325; A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/18; A61K8/19; A61K8/22; A61K8/26; A61K8/30; A61K8/40; A61K8/42; A61K8/72; A61K8/73; A61K8/731; A61K8/81; A61K8/8141; A61K8/8147; A61Q; A61Q11/00; B65D35/00; B65D35/22; B65D35/24; B65D35/242; A61C; A61C5/00; A61C5/60; A61C5/62; A61C5/64; A61K2800/00; A61K2800/80; A61K2800/88

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 217 words
A composition useful in combatting gum disease comprising: (a) a gel component comprising (i) about 0.1-10% by weight of hydrogen peroxide; (ii) about 0.05-5.0% by weight of a water-dispersible copolymer of acrylic acid cross-linked with polyallyl sucrose; (iii) about zero to about 2.0% by weight of a nonionic cellulose stabilizer; (iv) a neutralizing agent selected from the group consisting of sodium hydroxide, potassium hydroxide, triethanolamine, diisopropylamine and ammonia in an amount sufficient to raise the gel pH to about 3-6.0; and (v) purified water; (b) a paste component comprising: (i) about 2-60% sodium bicarbonate; (ii) about 0-6% of a salt selected from the group consisting of NaCl, KCl, MgCl 2 , MgSO 4 , Na 2 SO 4 and K 2 SO 4 ; (iii) about 2-60% of a humectant selected from the group consisting of glycerin, sorbitol, polyethylene glycol, propylene glycol, polypropylene glycol, an ethoxylated lower fatty alcohol, a propoxylated lower fatty alcohol and mixtures thereof; (iv) about 0.1-5% of a thickener stabilizer selected from the group consisting of cellulose gum, magnesium aluminum silicate and mixtures thereof; (v) about 1-30% of a stabilizing polishing agent selected from the group consisting of bentonite, titanium dioxide, silica, magnesium oxide and mixtures thereof; and (vi) purified water; said paste component and gel component being combined immediately prior to use.
Claim 2
Dependent Claim 217 words
A composition useful in combatting gum disease comprising: (a) a gel component comprising (i) about 0.1-10% by weight of hydrogen peroxide; (ii) about 0.05-5.0% by weight of a water-dispersible copolymer of acrylic acid cross-linked with polyallyl sucrose; (iii) about zero to about 2.0% by weight of a nonionic cellulose stabilizer; (iv) a neutralizing agent selected from the group consisting of sodium hydroxide, potassium hydroxide, triethanolamine, diisopropylamine and ammonia in an amount sufficient to raise the gel pH to about 3-6.0; and (v) purified water; (b) a paste component comprising: (i) about 2-60% sodium bicarbonate; (ii) about 0-6% of a salt selected from the group consisting of NaCl, KCl, MgCl 2 , MgSO 4 , Na 2 SO 4 and K 2 SO 4 ; (iii) about 2-60% of a humectant selected from the group consisting of glycerin, sorbitol, polyethylene glycol, propylene glycol, polypropylene glycol, an ethoxylated lower fatty alcohol, a propoxylated lower fatty alcohol and mixtures thereof; (iv) about 0.1-5% of a thickener stabilizer selected from the group consisting of cellulose gum, magnesium aluminum silicate and mixtures thereof; (v) about 1-30% of a stabilizing polishing agent selected from the group consisting of bentonite, titanium dioxide, silica, magnesium oxide and mixtures thereof; and (vi) purified water; said paste component and gel component being combined immediately prior to use.
Claim 3
Dependent Claim 26 words
The composition of claim 1, wherein said gel component comprises about 3.0-6.5% hydrogen peroxide; about 1-3% of said copolymer; and about 0.3-1.5% of said neutralizing agent.
Claim 4
Dependent Claim 39 words
The composition of claim 2, wherein said paste component comprises about 20-40% of said sodium bicarbonate; about 2-4% of said salt; about 15-255 of said humectant; about 1.0-2.0% of said stabilizer; and about 1.5-20% of said stabilizing polishing agent.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-17 1993-01-16 1993-07-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-17 1997-01-16 1997-07-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-17 2001-01-16 2001-07-18 $7700.00 Window Closed / Lapsed

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