US4132680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions having soil release properties
Assignee: Procter and Gamble Co
•
Filing: 1978-04-12
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Granted: 1979-01-02
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Expires: 1998-04-12
Abstract
Abstract Detergent compositions, which are particularly suitable for providing hydrophobic fabrics, such as polyester, with a soil release effect for oily soils, are disclosed. These compositions contain surface-active agents, polyester soil release polymers, and a component which dissociates in aqueous solution producing quaternary ammonium cations. The process of laundering hydrophobic fibers in aqueous solutions of these compositions is also disclosed.
Inventors
- 👤 Charles H. Nicol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:26
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0036; C11D3/16; C11D3/37; C11D3/3703; C11D3/3715
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
167 words
A laundry detergent composition comprising: (a) from about 2% to about 95% by weight of a surfactant selected from the group consisting of water-soluble anionic, nonionic, zwitterionic and ampholytic surface-active agents and mixtures thereof; and (b) from about 0.15% to about 25% by weight of a soil release polymer comprising ethylene terephthalate and polyethylene oxide terephthalate at a molar ratio of ethylene terephthalate to polyethylene oxide terephthalate of from about 65:35 to about 80:20, said polyethylene oxide terephthalate containing polyethylene oxide linking units having a molecular weight of from about 1,000 to about 3,000, the molecular weight of said soil release polymer being in the range of from about 10,000 to about 50,000; wherein at least 15% of said detergent composition is comprised of surfactant and detergency builder components, and wherein from about 0.05% to about 15% of said composition dissociates, in aqueous solution, yielding quaternary ammonium cations which include at least 1, and not more than 3, chains each containing from 8 to 24 carbon atoms.
Claim 2
Dependent Claim
167 words
A laundry detergent composition comprising: (a) from about 2% to about 95% by weight of a surfactant selected from the group consisting of water-soluble anionic, nonionic, zwitterionic and ampholytic surface-active agents and mixtures thereof; and (b) from about 0.15% to about 25% by weight of a soil release polymer comprising ethylene terephthalate and polyethylene oxide terephthalate at a molar ratio of ethylene terephthalate to polyethylene oxide terephthalate of from about 65:35 to about 80:20, said polyethylene oxide terephthalate containing polyethylene oxide linking units having a molecular weight of from about 1,000 to about 3,000, the molecular weight of said soil release polymer being in the range of from about 10,000 to about 50,000; wherein at least 15% of said detergent composition is comprised of surfactant and detergency builder components, and wherein from about 0.05% to about 15% of said composition dissociates, in aqueous solution, yielding quaternary ammonium cations which include at least 1, and not more than 3, chains each containing from 8 to 24 carbon atoms.
Claim 3
Dependent Claim
30 words
A composition according to claim 1 wherein said quaternary ammonium cations which include at least one, and not more than three, chains each containing from 10 to 20 carbon atoms.
Claim 4
Dependent Claim
23 words
A composition according to claim 2 wherein the soil release polymer is present in an amount of from about 0.5% to about 15%.
Claim 5
Dependent Claim
24 words
A composition according to claim 3 wherein the quaternary ammonium cations include two or three chains each containing from 10 to 20 carbon atoms.
Claim 6
Dependent Claim
14 words
A composition according to claim 4 wherein the quaternary ammonium cations are ditallowalkyldimethylammonium cations.
Claim 7
Dependent Claim
14 words
A composition according to claim 4 wherein the quaternary ammonium cations are dicoconutalkyldimethylammonium cations.
Claim 8
Dependent Claim
14 words
A composition according to claim 4 wherein the quaternary ammonium cations are distearylalkyldimethylammonium cations.
Claim 9
Dependent Claim
14 words
A composition according to claim 4 wherein the quaternary ammonium cations are trioctylalkylmethylammonium cations.
Claim 10
Dependent Claim
14 words
A composition according to claim 4 wherein the quaternary ammonium cations are tridecylalkylmethylammonium cations.
Claim 11
Dependent Claim
21 words
A composition according to claim 2 wherein the quaternary ammonium cations have one chain containing from 10 to 20 carbon atoms.
Claim 12
Dependent Claim
14 words
A composition according to claim 10 wherein the quaternary ammonium cations are palmitylalkyltrimethylammonium cations.
Claim 13
Dependent Claim
14 words
A composition according to claim 10 wherein the quaternary ammonium cations are coconutalkyltrimethylammonium cations.
Claim 14
Dependent Claim
23 words
A granular detergent composition according to claim 3 wherein the surfactant is present in an amount of from about 10% to about 25%.
Claim 15
Dependent Claim
23 words
A liquid detergent composition according to claim 3 wherein the surfactant is present in an amount of from about 20% to about 60%.
Claim 16
Dependent Claim
57 words
A composition according to claim 3 wherein the surfactant is an anionic surface active agent selected from the group consisting of C 10 to C 16 alkylbenzene sulfonates, C 10 to C 16 alkyl sulfates, C 10 to C 16 ethoxylated alkyl sulfates, wherein the average degree of ethoxylation is between 1 and 6, and mixtures thereof.
Claim 17
Dependent Claim
27 words
A composition according to claim 15 wherein the surfactant is selected from the group consisting of magnesium neutralized anionic surfactants, calcium neutralized anionic surfactants, and mixtures thereof.
Claim 18
Dependent Claim
27 words
A composition according to claim 3 containing a mixture of anionic and nonionic surfactants, wherein said mixture contains at least 5%, by weight, of the nonionic surfactant.
Claim 19
Dependent Claim
31 words
A composition according to claim 17 wherein said nonionic surfactant comprises the condensation product of at least 5 moles of ethylene oxide with a C 7 to C 16 aliphatic alcohol.
Claim 20
Dependent Claim
30 words
A composition according to claim 3 containing a zwitterionic surfactant which is the derivative of an ethoxylated quaternary ammonium compound and which contains a sulfate or sulfonate anionic solubilizing group.
Claim 21
Dependent Claim
20 words
A composition according to claim 3 wherein said composition additionally contains up to about 50% of a detergency builder component.
Claim 22
Dependent Claim
12 words
A composition according to claim 3 is free of detergency builder components.
Claim 23
Dependent Claim
27 words
A composition according to claim 4 wherein the quaternary ammonium cations have the formula ##STR9## wherein each R is a C 10 to C 20 alkyl group.
Claim 24
Independent Claim
196 words
A method for the removal of oily soils from polyester fibers comprising the washing of said fibers in an aqueous solution which contains from about 0.01% to about 0.3% of a detergent composition comprising: (a) from about 2% to about 95% by weight of a surfactant selected from the group consisting of water-soluble anionic, nonionic, zwitterionic and ampholytic surface-active agents and mixtures thereof; and (b) from about 0.15% to about 25% by weight of a soil release polymer comprising ethylene terephthalate and polyethylene oxide terephthalate at a molar ratio of ethylene terephthalate to polyethylene oxide terephthalate of from about 65:35 to about 80:20, said polyethylene oxide terephthalate containing polyethylene oxide linking units having a molecular weight of from about 1,000 to about 3,000, the molecular weight of said soil release polymer being in the range of from about 10,000 to about 50,000; wherein at least 15% of said detergent composition is comprised of surfactant and detergency builder components, and wherein from about 0.05% to about 15% of said composition dissociates, in aqueous solution, yielding quaternary ammonium cations which include at least one, and not more than three, chains each containing from 8 to 24 carbon atoms.
Claim 25
Independent Claim
196 words
A method for the removal of oily soils from polyester fibers comprising the washing of said fibers in an aqueous solution which contains from about 0.01% to about 0.3% of a detergent composition comprising: (a) from about 2% to about 95% by weight of a surfactant selected from the group consisting of water-soluble anionic, nonionic, zwitterionic and ampholytic surface-active agents and mixtures thereof; and (b) from about 0.15% to about 25% by weight of a soil release polymer comprising ethylene terephthalate and polyethylene oxide terephthalate at a molar ratio of ethylene terephthalate to polyethylene oxide terephthalate of from about 65:35 to about 80:20, said polyethylene oxide terephthalate containing polyethylene oxide linking units having a molecular weight of from about 1,000 to about 3,000, the molecular weight of said soil release polymer being in the range of from about 10,000 to about 50,000; wherein at least 15% of said detergent composition is comprised of surfactant and detergency builder components, and wherein from about 0.05% to about 15% of said composition dissociates, in aqueous solution, yielding quaternary ammonium cations which include at least one, and not more than three, chains each containing from 8 to 24 carbon atoms.
References Cited (Backward Citations)
US2766212A
Cited
US2908651A
Cited
US3416952A
Cited
US3479212A
Cited
US3686098A
Cited
GB1314897A
Cited
US3835071A
Cited
US3712873A
Cited
US3775052A
Cited
GB1377092A
Cited
DE2249812A1
Cited
US4020015A
Cited
US3893929A
Cited
US3869399A
Cited
US3993830A
Cited
DE2527793A1
Cited
US3959230A
Cited
US3962152A
Cited
US3929678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |