US4347168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray-dried granular detergent compositions for improved greasy soil removal
Assignee: Procter and Gamble Co
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Filing: 1980-08-01
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Granted: 1982-08-31
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Expires: 2000-08-01
Abstract
Abstract A granular detergent composition, especially for laundry use, containing a specific mixture of anionic, alkoxylated nonionic and alkoxylated cationic surfactants. The compositions are particularly effective in removing greasy and oily soils from fabrics, and they have improved physical characteristics, especially odor characteristics, when prepared by spray drying.
Inventors
- 👤 Alan P. Murphy
- 👤 Rory J. M. Smith
- 👤 Maxim C. Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:59
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/86; C11D1/38; C11D1/62; C11D1/66; C11D1/72; C11D1/02; C11D1/12; C11D1/22
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
103 words
A spray-dried granular detergent composition having improved odor characteristics and containing from about 6% to about 15% of a surface active system comprising: (a) from about 10% to about 40% by weight of a cationic surfactant which is quaternary ammonium salt having one group which is a C 12-18 alkyl or alkenyl, a second group which is methyl, a third group which is hydroxyethyl and a fourth group which is selected from the group consisting of methyl and hydroxyethyl; (b) at least about 50% by weight of a mixture of anionic and alkoxylated nonionic surfactants in a weight ratio of 3:1 to 1:3.
Claim 2
Dependent Claim
103 words
A spray-dried granular detergent composition having improved odor characteristics and containing from about 6% to about 15% of a surface active system comprising: (a) from about 10% to about 40% by weight of a cationic surfactant which is quaternary ammonium salt having one group which is a C 12-18 alkyl or alkenyl, a second group which is methyl, a third group which is hydroxyethyl and a fourth group which is selected from the group consisting of methyl and hydroxyethyl; (b) at least about 50% by weight of a mixture of anionic and alkoxylated nonionic surfactants in a weight ratio of 3:1 to 1:3.
Claim 3
Dependent Claim
51 words
A spray-dried granular detergent composition as recited in claim 1, in which the quaternary ammonium salt has one group which is C 12-16 alkyl, a second group which is methyl, a third group which is hydroxyethyl and a fourth group which is selected from the group consisting of methyl and hydroxyethyl.
Claim 4
Dependent Claim
65 words
A spray-dried granular detergent composition as recited in claim 2, in which the anionic surfactant is alkyl benzene sulfonate in which the alkyl group contains from about 9 to about 15 carbon atoms, and in which the nonionic surfactant is aliphatic alcohol having between 9 and 15 carbon atoms which is ethoxylated with between 3 and 8 moles of ethylene oxide per mole of alcohol.
Claim 5
Dependent Claim
33 words
A spray-dried granular detergent composition as recited in claim 3, in which the quaternary ammonium salt has one group which is dodecyl, two groups which are methyl and one group which is hydroxyethyl.
Claim 6
Dependent Claim
22 words
A spray-dried granular detergent composition as recited in claim 1, in which the quaternary ammonium salt has two groups which are hydroxyethyl.
Claim 7
Dependent Claim
65 words
A spray-dried granular detergent composition as recited in claim 5, in which the anionic surfactant is alkyl benzene sulfonate in which the alkyl group contains from about 9 to about 15 carbon atoms, and in which the nonionic surfactant is aliphatic alcohol having between 9 and 15 carbon atoms which is ethoxylated with between 3 and 8 moles of ethylene oxide per mole of alcohol.
Claim 8
Dependent Claim
20 words
A spray-dried granular detergent composition as recited in claim 6, in which the quaternary ammonium salt has an oleyl group.
Claim 9
Dependent Claim
23 words
A granular detergent composition as recited in claim 6, in which the quaternary ammonium salt has one group which is C 12-16 alkyl.
Claim 10
Dependent Claim
51 words
A spray-dried granular detergent composition as recited in claim 1, in which the quaternary ammonium salt has one group which is C 12-14 alkyl, a second group which is methyl, a third group which is hydroxyethyl and a fourth group which is selected from the group consisting of methyl and hydroxyethyl.
Claim 11
Dependent Claim
40 words
A spray-dried granular detergent composition as recited in claim 9, in which the nonionic surfactant is aliphatic alcohol having between 9 and 15 carbon atoms and ethoxylated with between 3 and 8 moles of ethylene oxide per mole of alcohol.
Claim 12
Dependent Claim
28 words
A spray-dried granular detergent composition as recited in claim 10, in which the quaternary ammonium salt is selected from the group consisting of dodecyl dimethyl hydroxyethyl ammonium salts.
Claim 13
Dependent Claim
27 words
A spray-dried granular detergent composition as recited in claim 10, in which the quaternary ammonium salt is selected from the group consisting of dodecyl di(hydroxyethyl)methyl ammonium salts.
References Cited (Backward Citations)
CA818419A
Cited
US3044962A
Cited
GB873214A
Cited
US3322676A
Cited
US3325414A
Cited
US3703480A
Cited
DE2433079A1
Cited
US4058489A
Cited
US4132680A
Cited
US4259217A
Cited
US4228044A
Cited
US4302364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |