US4457856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid detergent composition contains abrasive particles, anionic and nonionic surfactants
Assignee: Procter and Gamble Co
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Filing: 1983-04-21
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Granted: 1984-07-03
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Expires: 2003-04-21
Abstract
Abstract Abrasive liquid detergent compositions containing an anionic surfactant, a nonionic surfactant and a water-insoluble abrasive are disclosed.
Inventors
- 👤 Sharon J. Mitchell
- 👤 Jonathon Spinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/26; B65D47/261; B65D47/268; B65D35/00; B65D35/44; B65D47/06; B65D47/12; B65D47/121; B65D47/127; B65D47/128; C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C11D17/00; C11D17/0008; C11D17/0013; C11D17/04; C11D17/041; C11D3/00; C11D3/02; C11D3/12; C11D3/14; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D1/146; C11D1/22; C11D1/29; C11D1/38; C11D1/52; C11D1/523; C11D1/72; C11D1/75
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
140 words
A liquid dishwashing detergent composition comprising by weight: (a) from about 20% to about 35% of an anionic surfactant; (b) from about 2% to about 8% of a suds stabilizing nonionic surfactant selected from the group consisting of amine oxides and amides; (c) from about 1% to about 20% of a water-insoluble abrasive having a particle diameter of from about 5 to 250 microns and a hardness on the Mohs scale of from about 2 to about 8; and (d) from about 40% to about 75% water; said composition providing an initial suds cover to a dishwashing solution and a suds cover after the washing of eight plates when used at a concentration of 0.07% in two gallons of 115° F. water containing 7 grains/gallon water hardness measured as CaCO 3 , each plate carrying 4.0 ml. of triglyceride-containing soil.
Claim 2
Dependent Claim
140 words
A liquid dishwashing detergent composition comprising by weight: (a) from about 20% to about 35% of an anionic surfactant; (b) from about 2% to about 8% of a suds stabilizing nonionic surfactant selected from the group consisting of amine oxides and amides; (c) from about 1% to about 20% of a water-insoluble abrasive having a particle diameter of from about 5 to 250 microns and a hardness on the Mohs scale of from about 2 to about 8; and (d) from about 40% to about 75% water; said composition providing an initial suds cover to a dishwashing solution and a suds cover after the washing of eight plates when used at a concentration of 0.07% in two gallons of 115° F. water containing 7 grains/gallon water hardness measured as CaCO 3 , each plate carrying 4.0 ml. of triglyceride-containing soil.
Claim 3
Dependent Claim
32 words
The composition of claim 1 wherein the anionic surfactant comprises a material selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkylbenzene sulfonates, paraffin sulfonates, olefin sulfonates and mixtures thereof.
Claim 4
Dependent Claim
44 words
The composition of claim 2 wherein the suds stabilizing nonionic surfactant comprises a material selected from the group consisting of monoethanol and diethanol amides of C 12 -C 14 fatty acids, C 10 -C 14 alkyl dimethyl and diethyl amine oxides and mixtures thereof.
Claim 5
Dependent Claim
29 words
The composition of claim 3 wherein the abrasive comprises a material selected from the group consisting of quartz, silica, diatomaceous earth, feldspar, high density perlite, calcite and mixtures thereof.
Claim 6
Dependent Claim
22 words
The composition of claim 1 wherein the pH value of a 10% solution in water is from about 8.0 to about 10.0.
Claim 7
Dependent Claim
22 words
The composition of claim 4 wherein the pH value of a 10% solution in water is from about 8.0 to about 9.0.
Claim 8
Dependent Claim
27 words
The composition of claim 1 which comprises a suspending and thickening agent selected from the group consisting of colloidal clays, colloidal silica, isomorphous silicates, and mixtures thereof.
Claim 9
Dependent Claim
15 words
The composition of claim 7 wherein the suspending and thickening agent is a colloidal clay.
Claim 10
Dependent Claim
8 words
The composition of claim 1 which comprises ethanol.
Claim 11
Dependent Claim
33 words
The composition of claim 1 which comprises a suspending and thickening agent and which has a yield value of from about 5 dynes per square centimeter to about 400 dynes per square centimeter.
Claim 12
Dependent Claim
43 words
A composition according to claim 3 comprising from about 3% to about 12% of a water-insoluble abrasive having a particle diameter of from about 5 to about 125 microns and a hardness on the Mohs scale of from about 4 to about 7.
Claim 13
Dependent Claim
22 words
A composition according to claim 11 wherein the abrasive is a silica having a hardness on the Mohs scale of about 7.
Claim 14
Dependent Claim
12 words
A composition according to claim 12 comprising about 5% of the silica.
Claim 15
Dependent Claim
41 words
A composition according to claim 13 comprising about 11.5% of sodium C 12 -C 13 alkyl sulfate, about 12.5% of sodium C 12 -C 13 alkyl ethoxy (3) sulfate, and about 4.0% of C 12 -C 14 alkyl dimethyl amine oxide.
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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) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |