US5061393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic liquid detergent compositions for bathrooms
Assignee: Procter and Gamble Co
•
Filing: 1990-09-13
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Granted: 1991-10-29
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Expires: 2010-09-13
Abstract
Abstract Detergent compositions comprising a mixture of nonionic and zwitterionic detergent surfactants; hydrophobic cleaning solvent; and polycarboxylate detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5. The compositions are in the form of aqueous liquids.
Inventors
- 👤 Carlos G. Linares
- 👤 William A. Cilley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:10
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/94; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2082; C11D3/2086; C11D3/26; C11D3/33; C11D3/43; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
82 words
An acidic aqueous hard surface detergent composition comprising: (a) mixture of from about 0.01% to about 8% of zwitterionic detergent surfactant and from about 0.1% to about 6% of nonionic detergent surfactant; (b) from about 1% to about 15% of hydrophobic solvent that provides a cleaning function; (c) from about 2% to about 14% of polycarboxylate detergent builder; and (d) the balance being an aqueous solvent system and minor ingredients, the pH of said composition being from about 1 to about 5.5.
Claim 2
Dependent Claim
82 words
An acidic aqueous hard surface detergent composition comprising: (a) mixture of from about 0.01% to about 8% of zwitterionic detergent surfactant and from about 0.1% to about 6% of nonionic detergent surfactant; (b) from about 1% to about 15% of hydrophobic solvent that provides a cleaning function; (c) from about 2% to about 14% of polycarboxylate detergent builder; and (d) the balance being an aqueous solvent system and minor ingredients, the pH of said composition being from about 1 to about 5.5.
Claim 3
Dependent Claim
96 words
The composition of claim 1 wherein said zwitterionic detergent surfactants has the formula: R--N.sup.(+) (R.sup.2)(R.sup.3)R.sup.4 X(-) wherein R is a hydrophobic group; R 2 and R 3 are each C 1-4 alkyl, hydroxy alkyl or other substituted alkyl group which can also be joined to form ring structures with the N; R 4 is a moiety joining the cationic nitrogen atom to the hydrophilic group and is an alkylene, hydroxy alkylene, or polyalkoxy group containing from about 1 to about 4 carbon atoms; and X is the hydrophilic group which is a carboxylate or sulfonate group.
Claim 4
Dependent Claim
20 words
The composition of claim 2 containing sufficient buffering material to maintain a pH of from about 2 to about 4.5.
Claim 5
Dependent Claim
20 words
The composition of claim 2 wherein said nonionic detergent surfactant has an HLB of from about 10 to about 14.
Claim 6
Dependent Claim
20 words
The composition of claim 4 containing sufficient buffering material to maintain a pH of from about 2 to about 4.5.
Claim 7
Dependent Claim
29 words
The composition of claim 1 containing from about 1% to about 15% of said organic solvent (b), said solvent having a solubility in water of less than about 20%.
Claim 8
Dependent Claim
36 words
The composition of claim 6 wherein said solvent (b) is selected from the group consisting of alkyl and cycloalkyl hydrocarbons add halohydrocarbons, alpha olefins, benzyl alcohol, glycol ethers, and diols containing 6 to 16 carbon atoms.
Claim 9
Dependent Claim
21 words
The composition of claim 7 wherein said solvent (b) is a diol containing from about 8 to about 12 carbon atoms.
Claim 10
Dependent Claim
10 words
The composition of claim wherein said solvent (b) is 2,2,4-trimethyl-1,3-pentanediol.
Claim 11
Dependent Claim
56 words
The composition of claim 6 wherein said solvent (b) has the formula wherein each R 1 O-R 2 O-m H is an alkyl group which contains from about 4 to about 8 carbon atoms, each R2 is selected from the group consisting of ethylene or propylene, and m is a number from 1 to about 3.
Claim 12
Dependent Claim
27 words
The composition of claim 10 wherein said solvent (b) is selected from the group consisting of dipropyleneglycolmonobutyl ether, monopropyleneglycolmonobutyl ether, diethyleneglycolmonohexyl ether, monoethyleneglycolmonohexyl ether, and mixtures thereof.
Claim 13
Dependent Claim
67 words
The composition of claim 1 containing from about 1% to about 15% of said organic solvent (b) having the formula R 1 O-R 2 O-m H wherein each R 1 is an alkyl group which contains from about 4 to about 8 carbon atoms, each R 2 is selected from the group consisting of ethylene or propylene, and m is a number from 1 to about 3.
Claim 14
Dependent Claim
43 words
The composition of claim 1 containing from about 1% to about 15% of said organic solvent (b) selected from the group consisting of alkyl and cycloalkyl hydrocarbons and halohydrocarbons, alpha olefins, benzyl alcohol, glycol ethers, and diols containing 6 to 16 carbon atoms.
Claim 15
Dependent Claim
100 words
The composition of claim 1 wherein said zwitterionic detergent surfactant is a hydrocarbyl-amidoalkylenesulfobetaine having the formula: R--C(O)--N(R.sup.2)--(CR.sup.3.sub.2).sub.n -N(R.sup.2).sub.2 (+)--(CR.sup.3.sub.2).sub.n --S(O).sub.3 (-) wherein each R is an alkyl group containing from about 10 to about 18 carbon atoms, each (R 2 ) is selected from the group consisting of methyl, ethyl, propyl, hydroxy substituted ethyl or propyl and mixtures thereof, each (R 3 ) is selected from the group consisting of hydrogen and hydroxy groups, and each n is a number from 1 to about 4; with no more than about one hydroxy group in any (CR 3 2 ) moiety.
Claim 16
Dependent Claim
20 words
The composition of claim 14 wherein said nonionic detergent surfactant has an HLB of from about 10 to about 14.
Claim 17
Dependent Claim
20 words
The composition of claim 15 containing sufficient buffering material to maintain a pH of from about 2 to about 4.5.
Claim 18
Dependent Claim
29 words
The composition of claim 16 containing from about 1% to about 15% of said organic solvent (b), said solvent having a solubility in water of less than about 20%.
Claim 19
Dependent Claim
36 words
The composition of claim 14 wherein said solvent (b) is selected from the group consisting of alkyl and cycloalkyl hydrocarbons and halohydrocarbons, alpha olefins, benzyl alcohol, glycol ethers, and diols containing 6 to 16 carbon atoms.
Claim 20
Dependent Claim
66 words
The composition of claim 18 containing from about 1% to about 15% of organic solvent (b) having the formula R 1 O-R 2 )-m H wherein each R 1 is an alkyl group which contains from about 4 to about 8 carbon atoms, each R 2 is selected from the group consisting of ethylene or propylene, and m is a number from 1 to about 3.
Claim 21
Dependent Claim
18 words
The composition of claim 1 wherein the pH of said composition is from about 2 to about 4.5.
Claim 22
Dependent Claim
91 words
The composition of claim 20 wherein the level of said zwitterionic detergent surfactant is from about 1% to about 6%; the level of said nonionic detergent surfactant is from about 0.5% to about 6%; the ratio of said nonionic to said zwitterionic detergent surfactant is from about 1:3 to about 2:1; the level of said hydrophobic solvent is from about 2% to about 12%; the level of said polycarboxylate detergent builder is from about 3% to about 12%; and the pH of said composition is from about 2 to about 4.5.
Claim 23
Dependent Claim
16 words
The process of cleaning hard surfaces comprising spraying said surfaces with the composition of claim 1.
References Cited (Backward Citations)
US4312855A
Cited
US3909437A
Cited
US4013579A
Cited
US4111854A
Cited
US4000092A
Cited
JPS5277111A
Cited
GB2022126A
Cited
US4247408A
Cited
JPS55147600A
Cited
JPS57198A
Cited
JPS5728199A
Cited
JPS5761096A
Cited
US4414128A
Cited
US4759867A
Cited
US4612135A
Cited
JPS6051792A
Cited
JPS6112798A
Cited
US4702857A
Cited
JPS62235399A
Cited
US4743395A
Cited
US4769172A
Cited
US4804491A
Cited
US4895669A
Cited
US4749509A
Cited
US4867898A
Cited
US4822854A
Cited
US7587477B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-28 | 1995-04-29 | 1995-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-28 | 1999-04-29 | 1999-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-28 | 2003-04-29 | 2003-10-29 | $7700.00 | Window Closed / Lapsed |