US4326978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soap bar with antimicrobial action
Assignee: BASF Corp
•
Filing: 1980-11-10
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Granted: 1982-04-27
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Expires: 2000-11-10
Abstract
Abstract A soap bar which contains, as antimicrobial compound, a halogenated o-hydroxydiphenyl ether, as well as a colorless silicate which is virtually insoluble in water and wich diminishes the discoloration of the soap caused by the antimicrobial compound on exposure to sunlight. There is also disclosed a method of improving the aspect of bars of soap which contain such antimicrobial compounds by adding to the soap base a colorless silicate which is virtually insoluble in water, optionally in conjunction with a fatty acid containing 8 to 22 carbon atoms and/or a N-acylsarcosine.
Inventors
- 👤 Boris Moesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:06
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; C11D9/00; C11D9/04; C11D9/06; C11D9/18
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
69 words
A soap bar with antimicrobial action containing, as antimicrobial compound, a halogenated o-hydroxydiphenyl ether of the formula ##STR7## wherein X is halogen, methyl, methoxy or hydroxy, Y is hydrogen, methyl or trifluoromethyl, Hal is a halogen atom and m is 0, 1 or 2, which soap bar additionally contains a water-insoluble, colorless magnesium silicate in an amount sufficient to effectively diminish discoloration of the bar on exposure to light.
Claim 2
Dependent Claim
69 words
A soap bar with antimicrobial action containing, as antimicrobial compound, a halogenated o-hydroxydiphenyl ether of the formula ##STR7## wherein X is halogen, methyl, methoxy or hydroxy, Y is hydrogen, methyl or trifluoromethyl, Hal is a halogen atom and m is 0, 1 or 2, which soap bar additionally contains a water-insoluble, colorless magnesium silicate in an amount sufficient to effectively diminish discoloration of the bar on exposure to light.
Claim 3
Dependent Claim
39 words
A soap bar according to claim 1, wherein the antimicrobial compound is a halogenated o-hydroxydiphenyl ether of the formula ##STR8## wherein each of Hal and Hal 1 independently is a halogen atom and Y 1 is hydrogen or halogen.
Claim 4
Dependent Claim
30 words
A soap bar according to claim 1 which contains the antimicrobial compound in a concentration of 0.05 to 3% by weight, based on the total weight of the soap bar.
Claim 5
Dependent Claim
30 words
A soap bar according to claim 1 which contains the magnesium silicate in a concentration of 0.1 to 10% by weight, based on the total weight of the soap bar.
Claim 6
Dependent Claim
25 words
A soap bar according to claim 1 which additionally contains one or more free, substantially saturated, fatty acids each containing 8 to 22 carbon atoms.
Claim 7
Dependent Claim
28 words
A soap bar according to claim 1 which additionally contains a N-acylsarcosine of the formula ##STR9## wherein R is alkyl or alkenyl of 8 to 17 carbon atoms.
Claim 8
Dependent Claim
23 words
A soap bar of claim 1 which further contains a perfume, a dulling agent, a colorant, a chelating agent or a water softener.
Claim 9
Dependent Claim
13 words
A soap bar of claim 2, wherein the antimicrobial compound is 4,2',4'-trichloro-2-hydroxydiphenyl ether.
Claim 10
Dependent Claim
19 words
A soap bar of claim 3, wherein the concentration of the antimicrobial compound is 0.2 to 2% by weight.
Claim 11
Dependent Claim
18 words
A soap bar of claim 4, wherein the concentration of magnesium silicate is 0.5 to 5% by weight.
Claim 12
Dependent Claim
38 words
A soap bar according to claim 5, wherein the fatty acid is stearic acid, lauric acid, palmitic acid, myristic acid or a mixture of acids which can be obtained from coconut oil, tallow fat or palm kernel oils.
Claim 13
Dependent Claim
27 words
A soap bar according to claim 5 which contains 0.1 to 15% by weight of free fatty acid, based on the total weight of the soap bar.
Claim 14
Dependent Claim
26 words
A soap bar according to claim 6 which contains 1 to 15% by weight of a N-acylsarcosine, based on the total weight of the soap bar.
Claim 15
Dependent Claim
13 words
A soap bar of claim 11, wherein the fatty acid is stearic acid.
Claim 16
Dependent Claim
17 words
A soap bar of claim 12, containing 1 to 10% by weight of the free fatty acid.
Claim 17
Dependent Claim
15 words
A soap bar of claim 13, containing 1 to 5% by weight of the N-acylsarcosine.
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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) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |