US4714563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antimicrobial toilet bars
Assignee: Procter and Gamble Co
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Filing: 1986-07-18
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Granted: 1987-12-22
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Expires: 2006-07-18
Abstract
Abstract Antimicrobial toilet bars comprising: (a) a surfactant selected from soaps, anionic synthetic surfactants and mixtures thereof, and (b) an antimicrobial agent selected from chlorhexidine and salts of chlorhexidine which have low solubility in water.
Inventors
- 👤 Theresa M. Kajs
- 👤 Cynthia A. Berge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:22
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; C11D10/00; C11D10/04; C11D10/042; C11D1/00; C11D1/02; C11D1/12; C11D1/126; C11D1/14; C11D1/16; C11D1/28; C11D1/29
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
An antimicrobial toilet bar comprising: (a) from about 50% to about 90% of a surfactant selected from the group consisting of soaps and anionic synthetic surfactants and mixtures thereof; and (b) from about 0.1% to about 10% of an antimicrobial agent selected from the group consisting of chlorhexidine and salts of chlorhexidine wherein said salts have a solubility in water at 20° C. of less than about 2.6% (w/v), said agent having a particle size of from about 1 to about 40 microns.
Claim 2
Dependent Claim
83 words
An antimicrobial toilet bar comprising: (a) from about 50% to about 90% of a surfactant selected from the group consisting of soaps and anionic synthetic surfactants and mixtures thereof; and (b) from about 0.1% to about 10% of an antimicrobial agent selected from the group consisting of chlorhexidine and salts of chlorhexidine wherein said salts have a solubility in water at 20° C. of less than about 2.6% (w/v), said agent having a particle size of from about 1 to about 40 microns.
Claim 3
Dependent Claim
34 words
The composition of claim 1 wherein the particle size of Component (b) is from about 1 to about 40 microns and wherein the amount of Component (b) is from about 0.5% to about 5%.
Claim 4
Dependent Claim
10 words
The composition of claim 2 wherein the surfactant is soap.
Claim 5
Dependent Claim
17 words
The composition of claim 2 wherein the surfactant is a mixture of soap and anionic synthetic surfactant.
Claim 6
Dependent Claim
26 words
The composition of any of claims 2 through 4 wherein the antimicrobial agent is selected from the group consisting of chlorhexidine, chlorhexidine dihydrochloride and chlorhexidine diacetate.
Claim 7
Dependent Claim
82 words
A toilet bar comprising: (a) from about 65% to about 85% soap; and (b) from about 0.5% to 5% of an antimicrobial agent selected from the group consisting of chlorhexidine and salts of chlorhexidine wherein said salts have a solubility in water at 20° C. of less than about 2.6% (w/v), from about 25 to about 40 microns; and (c) from about 3% to about 10% of free fatty acids having chain lengths of from about 10 to about 14 carbon atoms.
Claim 8
Dependent Claim
82 words
A toilet bar comprising: (a) from about 65% to about 85% soap; and (b) from about 0.5% to 5% of an antimicrobial agent selected from the group consisting of chlorhexidine and salts of chlorhexidine wherein said salts have a solubility in water at 20° C. of less than about 2.6% (w/v), from about 25 to about 40 microns; and (c) from about 3% to about 10% of free fatty acids having chain lengths of from about 10 to about 14 carbon atoms.
Claim 9
Dependent Claim
23 words
The toilet bar of claim 6 wherein the antimicrobial agent is selected from the group consisting of chlorhexidine, chlorhexidine dihydrochloride and chlorhexidine diacetate.
References Cited (Backward Citations)
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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) | 1990-12-21 | 1991-06-22 | 1991-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-21 | 1995-06-22 | 1995-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-21 | 1999-06-22 | 1999-12-22 | $7700.00 | Window Closed / Lapsed |