US4490285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy-duty liquid detergent composition
Assignee: Procter and Gamble Co
•
Filing: 1983-08-02
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Granted: 1984-12-25
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Expires: 2003-08-02
Abstract
Abstract Heavy-duty liquid detergent compositions containing ethoxylated alcohol nonionic surfactant and specific anionic surfactant, which is a sulfated approximately monoethoxylated fatty alcohol.
Inventors
- 👤 Ertugrul S. Kebanli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:05
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
180 words
A heavy-duty liquid detergent composition comprising, by weight: (1) from about 10% to about 40% of a nonionic surfactant produced by condensing from about 3 to about 10 moles of ethylene oxide with 1 mole of an alcohol having a straight or branched alkyl chain containing from about 8 to about 16 carbon atoms, said nonionic surfactant having an HLB of from about 8 to about 15; (2) from about 5% to about 20%, of an acid basis, of an anionic surfactant which is a sulfated condensation product of an alcohol having a straight or branched alkyl chain containing from about 10 to about 18 carbon atoms with from about 0.8 to about 1.5 moles of ethylene oxide per mole of alcohol; the weight ratio of (1) to (2) being from about 2:1 to about 4:1; and (3) from about 40% to about 85% of a solvent system comprising water, or mixtures thereof with an alcohol containing from 1 to 6 carbon atoms or a polyol containing from 2 to 6 carbon atoms and from 2 to 6 hydroxy groups.
Claim 2
Dependent Claim
180 words
A heavy-duty liquid detergent composition comprising, by weight: (1) from about 10% to about 40% of a nonionic surfactant produced by condensing from about 3 to about 10 moles of ethylene oxide with 1 mole of an alcohol having a straight or branched alkyl chain containing from about 8 to about 16 carbon atoms, said nonionic surfactant having an HLB of from about 8 to about 15; (2) from about 5% to about 20%, of an acid basis, of an anionic surfactant which is a sulfated condensation product of an alcohol having a straight or branched alkyl chain containing from about 10 to about 18 carbon atoms with from about 0.8 to about 1.5 moles of ethylene oxide per mole of alcohol; the weight ratio of (1) to (2) being from about 2:1 to about 4:1; and (3) from about 40% to about 85% of a solvent system comprising water, or mixtures thereof with an alcohol containing from 1 to 6 carbon atoms or a polyol containing from 2 to 6 carbon atoms and from 2 to 6 hydroxy groups.
Claim 3
Dependent Claim
33 words
The composition of claim 1 comprising from about 15% to about 25% of the nonionic surfactant (1), and wherein the weight ratio of (1) to (2) is from about 2.3:1 to about 2.8:1.
Claim 4
Dependent Claim
41 words
The composition of claim 2 wherein the anionic surfactant is a sulfated condensation product of an alcohol having an alkyl chain containing from about 12 to about 16 carbon atoms with about 1 mole of ethylene oxide per mole of alcohol.
Claim 5
Dependent Claim
58 words
The composition of claim 3 wherein the nonionic surfactant is a condensation product of a primary alcohol having an alkyl chain containing from about 10 to about 14 carbon atoms with from about 5 to about 8 moles of ethylene oxide per mole of alcohol, said nonionic surfactant having an HLB of from about 9 to about 12.
Claim 6
Dependent Claim
43 words
The composition of claim 4 wherein the solvent system represents from about 55% to about 70% by weight of the composition and is a mixture of water and ethanol, with the ethanol representing about 5% to about 10% by weight of the composition.
Claim 7
Dependent Claim
16 words
The composition of claim 1 further comprising from about 0.025% to about 2% of an enzyme.
Claim 8
Dependent Claim
25 words
The composition of claim 6 wherein the enzyme comprises a proteolytic enzyme having a proteolytic activity of at least about 5 Anson units per liter.
Claim 9
Dependent Claim
31 words
The composition of claim 7 further comprising from about 0.25% to about 10% of a water soluble formate and from about 0.1 to about 30 millimoles of calcium ion per liter.
Claim 10
Dependent Claim
40 words
The composition of claim 5 further comprising from about 0.025% to about 2% of an enzyme, from about 0.5% to about 1.5% of a water soluble formate, and from about 0.5 to about 15 millimoles of calcium ion per liter.
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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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |