US4062647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clay-containing fabric softening detergent compositions
Assignee: Procter and Gamble Co
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Filing: 1974-07-08
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Granted: 1977-12-13
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Expires: 1994-07-08
Abstract
Abstract Granular, built laundry detergent compositions containing particular smectite clay minerals. Compositions containing such clays provide softening and/or antistatic benefits to fabrics washed therein.
Inventors
- 👤 Thomas D. Storm
- 👤 Joseph P. Nirschl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D3/0005; C11D3/001; C11D3/06; C11D3/10; C11D3/12; C11D3/124; C11D3/1246; C11D3/1253; C11D3/126
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
A granular, built laundry detergent composition consisting essentially of: a. from about 5% to about 20% by weight of a water soluble non-soap synthetic detergent compound selected from the group consisting of anionic synthetic detergents, nonionic synthetic detergents, ampholytic synthetic detergents, zwitterionics synthetic detergents, and mixtures thereof; b. from about 10% to about 60% by weight of an organic or inorganic detergent builder salt; and c. from about 1% to about 50% by weight of a smectite clay selected from the group consisting of sodium and calcium montmorillonites, sodium saponites, sodium hectorites, lithium and magnesium hectorites, lithium and magnesium saponites, and mixtures thereof, having a cation exchange capacity of at least about 60 meq/100g., said composition providing a solution pH of from about 7 to about 12 when dissolved in water at a concentration of about 0.12% by weight.
Claim 2
Dependent Claim
139 words
A granular, built laundry detergent composition consisting essentially of: a. from about 5% to about 20% by weight of a water soluble non-soap synthetic detergent compound selected from the group consisting of anionic synthetic detergents, nonionic synthetic detergents, ampholytic synthetic detergents, zwitterionics synthetic detergents, and mixtures thereof; b. from about 10% to about 60% by weight of an organic or inorganic detergent builder salt; and c. from about 1% to about 50% by weight of a smectite clay selected from the group consisting of sodium and calcium montmorillonites, sodium saponites, sodium hectorites, lithium and magnesium hectorites, lithium and magnesium saponites, and mixtures thereof, having a cation exchange capacity of at least about 60 meq/100g., said composition providing a solution pH of from about 7 to about 12 when dissolved in water at a concentration of about 0.12% by weight.
Claim 3
Dependent Claim
52 words
A composition in accordance with claim 1 wherein the smectite clay is an antistat agent selected from the group consisting of saponites and hectorites, at least 50% of the cations of which are lithium or magnesium ions, said smectite clay being present at a level of 3-15% by weight of the composition.
Claim 4
Dependent Claim
17 words
A composition in accordance with claim 2 wherein 75-90% of the cations are lithium or magnesium ions.
Claim 5
Dependent Claim
124 words
A composition in accordance with claim 1 a. wherein the synthetic detergent compound is an anionic synthetic detergent; b. wherein the builder salt is selected from the group consisting of alkali metal carbonates, alkali metal borates, alkali metal phosphates, alkali metal polyphosphates, alkali metal bicarbonates, alkali metal sulfates, water-soluble amino polyacetates, water-soluble salts of phytic acid, and water-soluble polyphosphonates and is present to the extent of from about 20% to about 50% by weight; and c. wherein the smectite clay is a softening agent selected from the group consisting of sodium and calcium montmorillonites, sodium saponites, sodium hectorites, lithium and magnesium hectorites, lithium and magnesium saponites, and mixtures thereof, and is present to the extent of from about 5% to about 15% by weight.
Claim 6
Dependent Claim
37 words
A composition in accordance with claim 4 wherein the smectite clay is selected from the group consisting of sodium and calcium montmorillonites, sodium saponites and sodium hectorites having a cation exchange capacity greater than 60 meq/100 gr.
Claim 7
Dependent Claim
51 words
A composition in accordance with claim 5 wherein the anionic surfactant is a water-soluble salt of an organic sulfuric reaction product containing an alkyl group of from about 8 to about 22 carbon atoms and a moiety selected from the group consisting of sulfuric acid ester moieties and sulfonic acid moieties.
Claim 8
Dependent Claim
82 words
A composition in accordance with claim 6 wherein the anionic surfactant is selected from the group consisting of sodium linear alkyl benzene sulfonate wherein the alkyl chain averages from about 10 to 18 carbon atoms in length, sodium tallow alkyl sulfate; 2-acetoxy-tridecane-1-sulfonic acid; sodium methyl-alpha-sulfopalmitate; sodium Beta-methoxyoctadecylsulfonate; sodium coconut alkyl ethylene glycol ether sulfonate; the sodium salt of the sulfuric acid ester of the reaction product of one mole of tallow fatty alcohol and three moles of ethylene oxide; and mixtures thereof.
Claim 9
Dependent Claim
29 words
A composition in accordance with claim 7 wherein the builder salt is selected from the group consisting of sodium tripolyphosphate, sodium nitrilotriacetate, sodium mellitate, sodium citrate and sodium carbonate.
Claim 10
Dependent Claim
90 words
A granular, built laundry detergent and fabric softening composition consisting essentially of: a. from about 5% to about 20% of a mixture, in a 1.22:1 weight ratio, of sodium tallow alkyl sulfate and sodium linear alkyl benzene sulfonate wherein the alkyl chain of the sulfonate averages about 12 carbon atoms in length; b. from about 20% to about 50% of a sodium tripolyphosphate builder salt; and c. from about 5% to about 15% of a sodium montmorillonite clay softening agent having a cation exchange capacity greater than 60 meq/100 g.
Claim 11
Dependent Claim
90 words
A granular, built laundry detergent and fabric softening composition consisting essentially of: a. from about 5% to about 20% of a mixture, in a 1.22:1 weight ratio, of sodium tallow alkyl sulfate and sodium linear alkyl benzene sulfonate wherein the alkyl chain of the sulfonate averages about 12 carbon atoms in length; b. from about 20% to about 50% of a sodium tripolyphosphate builder salt; and c. from about 5% to about 15% of a sodium montmorillonite clay softening agent having a cation exchange capacity greater than 60 meq/100 g.
Claim 12
Dependent Claim
38 words
A process for the simultaneous laundering and feel improvement of fabrics comprising contacting said fabrics with an aqueous medium containing from about 0.02% by weight to about 2% by weight of a composition in accordance with claim 1.
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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) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |