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US3950276A Expired / Lapsed US ⏱️ 0.0 years remaining

Sulfonate detergent compositions

Assignee: Colgate Palmolive Co
•
Filing: 1972-05-22
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Granted: 1976-04-13
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Expires: 1992-05-22
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Abstract

Abstract An essentially phosphate-free high performance laundry detergent composition containing olefin sulfonate detergent, sodium silicate and nonionic detergent in particular ratios.

Inventors

  • 👤 Paul Sheldon Grand

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 14:50
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D1/29; C11D1/66; C11D1/83; C11D3/02; C11D3/04; C11D3/08

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 267 words
A granular non-phosphate, non-enzymatic detergent composition consisting essentially of an anionic sulfonate detergent selected from the group consisting of olefin sulfonate, paraffin sulfonate and mixtures of olefin sulfonate and paraffin sulfonate detergents, (b) sodium silicate, (c) nonionic detergent and (d) carboxymethyl cellulose, the ratio a:b being in the range of about 2:1 to 1:2, the ratio a:c being in the range of about 15:1 to 4:1, the ratio a:d being in the range of about 90:1 to 6:1 and the amount of c being at least about 4% of the total weight of a+b, said olefin sulfonate being a mixture of water soluble long chain alkenyl sulfonate and water soluble long chain hydroxyalkane sulfonate in water the hydroxy is on a carbon atom not directly attached to the carbon atom adjacent the sulfonate group, both said alkenyl and hydroxyalkane sulfonates being of 12 to 20 carbon atoms, said paraffin sulfonate being a water soluble salt of 10 to 20 carbon atoms, said sodium silicate being of an Na 2 O:SiO 2 weight ratio of about 1:2 to 1:3, said nonionic detergent being an ether of polyethylene glycol and a monohydric alkanol of about 10 to 18 carbon atoms wherein the polyethylene glycol is of about 5 to 15 oxyethylene units, and said composition, when dissolved in 0.15% concentration in water of 150 parts per million of hardness, resulting in a pH below 10, a turbidity of less than 30 and a calcium electrode potential of at most about 20 millivolts less than the potential of said hard water, when measured by means of a calcium activity electrode.
Claim 2
Dependent Claim 267 words
A granular non-phosphate, non-enzymatic detergent composition consisting essentially of an anionic sulfonate detergent selected from the group consisting of olefin sulfonate, paraffin sulfonate and mixtures of olefin sulfonate and paraffin sulfonate detergents, (b) sodium silicate, (c) nonionic detergent and (d) carboxymethyl cellulose, the ratio a:b being in the range of about 2:1 to 1:2, the ratio a:c being in the range of about 15:1 to 4:1, the ratio a:d being in the range of about 90:1 to 6:1 and the amount of c being at least about 4% of the total weight of a+b, said olefin sulfonate being a mixture of water soluble long chain alkenyl sulfonate and water soluble long chain hydroxyalkane sulfonate in water the hydroxy is on a carbon atom not directly attached to the carbon atom adjacent the sulfonate group, both said alkenyl and hydroxyalkane sulfonates being of 12 to 20 carbon atoms, said paraffin sulfonate being a water soluble salt of 10 to 20 carbon atoms, said sodium silicate being of an Na 2 O:SiO 2 weight ratio of about 1:2 to 1:3, said nonionic detergent being an ether of polyethylene glycol and a monohydric alkanol of about 10 to 18 carbon atoms wherein the polyethylene glycol is of about 5 to 15 oxyethylene units, and said composition, when dissolved in 0.15% concentration in water of 150 parts per million of hardness, resulting in a pH below 10, a turbidity of less than 30 and a calcium electrode potential of at most about 20 millivolts less than the potential of said hard water, when measured by means of a calcium activity electrode.
Claim 3
Dependent Claim 77 words
A detergent composition according to claim 1 in which the anionic sulfonate detergent is an olefin sulfonate detergent which is a mixture of water soluble long chain alkenyl sulfonate and water soluble long chain hydroxyalkane sulfonate in which the hydroxy is on a carbon chain not directly attached to a carbon atom adjacent the sulfonate group and both said alkenyl sulfonate and hydroxyalkane sulfonate and hydroxyalkane sulfonate contain an average of about 14 to 16 carbon atoms.
Claim 4
Dependent Claim 25 words
A detergent composition according to claim 1 wherein the anionic sulfonate detergent is a paraffin sulfonate having an average of 16 to 18 carbon atoms.
Claim 5
Dependent Claim 25 words
A detergent composition according to claim 1 contaning no more than about five parts of alkali metal carbonate per 100 parts of anionic sulfonate detergent.
Claim 6
Dependent Claim 37 words
A detergent composition according to claim 2 wherein the turbidity is in the range of 5 to 15 and the calcium electrode potential is at most about ten millivolts less than the potential of said hard water.
Claim 7
Dependent Claim 125 words
A detergent composition according to claim 5 which is free of water soluble alkali metal carbonate builder salt, wherein the anionic sulfonate detergent is sodium olefin sulfonate, the sodium silicate is of an Na 2 O:SiO 2 ratio of about 1:2, the nonionic detergent is one in which the long chain alkyl of the long chain alkanol component is of 10 to 16 carbon atoms and the ethylene oxide content thereof is about 60 to 65% and the carboxymethyl cellulose is sodium carboxymethyl cellulose and wherein the weight ratios of a:b, b:c and c:d are about 5:3 to 3:4, 15:1 to 6:1 and 90:1 to 8:1, respectively, with the amount of c being from 4 to 10% of the total weight of the detergent composition.

References Cited (Backward Citations)

CA586622A Cited
GB688754A Cited
US2954348A Cited
GB939878A Cited
US3272753A Cited
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US3600318A Cited
US3654168A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-04-13 1979-10-13 1980-04-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-04-13 1983-10-13 1984-04-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-04-13 1987-10-13 1988-04-13 $7700.00 Window Closed / Lapsed

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