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US3717591A Expired / Lapsed US ⏱️ 0.0 years remaining

Detergent formulations

Assignee: Ethyl Corp
•
Filing: 1971-02-12
•
Granted: 1973-02-20
•
Expires: 1991-02-12
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Abstract

Abstract To obviate eutrophication of water, non-phosphorus detergent builders are provided. These are the water-soluble salts (e.g., the trisodium salts) of taurine-N,N-diacetic acid, nitrilodiacetic acid-monomethylene sulfonic acid or mixtures thereof. Conventional detergent actives may be used with these builders.

Inventors

  • 👤 M Yang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:59
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/34; C11D3/349; C11D3/3472; Y; Y10; Y10S; Y10S252/00; Y10S252/18

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 74 words
In a washing composition an organic detergent surfactant selected from the group consisting of anionic, cationic, non-ionic, ampholytic, zwitterionic detergents and mixtures thereof suitable for use in water and, as a builder, a compound selected from the group consisting of a water-soluble salt of taurine-N,N-diacetic acid, nitrilodiacetic acid-monomethylene sulfonic acid and mixtures thereof, the ratio by weight of the detergent surfactant to the builder being in the range of about 1:10 to about 3:1.
Claim 2
Dependent Claim 74 words
In a washing composition an organic detergent surfactant selected from the group consisting of anionic, cationic, non-ionic, ampholytic, zwitterionic detergents and mixtures thereof suitable for use in water and, as a builder, a compound selected from the group consisting of a water-soluble salt of taurine-N,N-diacetic acid, nitrilodiacetic acid-monomethylene sulfonic acid and mixtures thereof, the ratio by weight of the detergent surfactant to the builder being in the range of about 1:10 to about 3:1.
Claim 3
Dependent Claim 62 words
A washing composition consisting essentially of an organic detergent surfactant selected from the group consisting of anionic, cationic, non-ionic, ampholytic, and zwitterionic detergents and mixtures thereof suitable for use in water and, as a builder, a water-soluble salt of taurine-N,N-diacetic acid, the ratio by weight of the detergent surfactant to the builder being in the range of about 1:10 to about 3:1.
Claim 4
Dependent Claim 62 words
A washing composition consisting essentially of an organic detergent surfactant selected from the group consisting of anionic, cationic, non-ionic, ampholytic, and zwitterionic detergents and mixtures thereof suitable for use in water and, as a builder, a water-soluble salt of taurine-N,N-diacetic acid, the ratio by weight of the detergent surfactant to the builder being in the range of about 1:10 to about 3:1.
Claim 5
Dependent Claim 13 words
The composition of claim 2 wherein said water-soluble salt is a sodium salt.
Claim 6
Dependent Claim 17 words
The composition of claim 2 wherein said detergent surfactant is one or a mixture of anionic detergents.
Claim 7
Dependent Claim 30 words
The composition of claim 2 additionally containing from about 2 to about 10 percent by weight based on the total weight of the composition of a water-soluble alkali metal silicate.
Claim 8
Dependent Claim 34 words
The composition of claim 2 additionally containing up to about 60 percent by weight based on the total weight of the composition of an alkali metal sulfate or an alkali metal carbonate or both.
Claim 9
Dependent Claim 75 words
The composition of claim 2 wherein said detergent surfactant is one or a mixture of anionic detergents, wherein said salt is the trisodium salt of taurine-N,N-diacetic acid, and wherein the composition additionally contains from about 2 to about 10 percent by weight based on the total weight of the composition of a water-soluble silicate and from about 10 to about 50 percent by weight based on the total weight of the composition of sodium sulfate.
Claim 10
Dependent Claim 87 words
An aqueous washing system composed of water, an organic detergent surfactant and, as a builder therefor, a water-soluble salt selected from the group consisting of alkali metal salts, ammonium salts, and alkyl ammonium salts of taurine-N,N-diacetic acid, said builder and said surfactant being present in an amount sufficient to achieve the desired washing result, the ratio by weight of said detergent surfactant to said builder being in the range of from about 1:10 to about 3:1, said system having a pH between about 8 and about 12.
Claim 11
Dependent Claim 87 words
An aqueous washing system composed of water, an organic detergent surfactant and, as a builder therefor, a water-soluble salt selected from the group consisting of alkali metal salts, ammonium salts, and alkyl ammonium salts of taurine-N,N-diacetic acid, said builder and said surfactant being present in an amount sufficient to achieve the desired washing result, the ratio by weight of said detergent surfactant to said builder being in the range of from about 1:10 to about 3:1, said system having a pH between about 8 and about 12.
Claim 12
Dependent Claim 18 words
The method of washing articles which comprises contacting the same with an aqueous washing system of claim 8.
Claim 13
Dependent Claim 17 words
The composition of claim 8 wherein said detergent surfactant is one or a mixture of anionic detergents.
Claim 14
Dependent Claim 16 words
The composition of claim 8 wherein said water-soluble salt is a sodium salt of taurine-N,N-diacetic acid.
Claim 15
Dependent Claim 57 words
A washing composition consisting essentially of an organic detergent surfactant selected from the group consisting of anionic, cationic, non-ionic, ampholytic, and zwitterionic detergents and mixtures thereof suitable for use in water and, nitrilodiacetic acid-monomethylene sulfonic acid, the ratio by weight of the detergent surfactant to the builder being in the range of about 1:10 to about 3:1.
Claim 16
Dependent Claim 57 words
A washing composition consisting essentially of an organic detergent surfactant selected from the group consisting of anionic, cationic, non-ionic, ampholytic, and zwitterionic detergents and mixtures thereof suitable for use in water and, nitrilodiacetic acid-monomethylene sulfonic acid, the ratio by weight of the detergent surfactant to the builder being in the range of about 1:10 to about 3:1.
Claim 17
Dependent Claim 13 words
The composition of claim 12 wherein said water-soluble salt is a sodium salt.
Claim 18
Dependent Claim 17 words
The composition of claim 12 wherein said detergent surfactant is one or a mixture of anionic detergents.
Claim 19
Dependent Claim 30 words
The composition of claim 12 additionally containing from about 2 to about 10 percent by weight based on the total weight of the composition of a water-soluble alkali metal silicate.
Claim 20
Dependent Claim 34 words
The composition of claim 12 additionally containing up to about 60 percent by weight based on the total weight of the composition of an alkali metal sulfate or an alkali metal carbonate, or both.
Claim 21
Dependent Claim 78 words
The composition of claim 12 wherein said detergent surfactant is one or a mixture of anionic detergents, wherein said salt is the trisodium salt of nitrilodiacetic acid-monomethylene sulfonic acid, and wherein the composition additionally contains from about 2 to about 10 percent by weight based on the total weight of the composition of a water-soluble sodium silicate and from about 10 to about 50 percent by weight based on the total weight of the composition of sodium sulfate.
Claim 22
Dependent Claim 90 words
An aqueous washing system composed of water, an organic detergent surfactant and, as a builder therefor, a water-soluble salt selected from the group consisting of alkali metal salts, ammonium salts, and alkyl ammonium salts of nitrilodiacetic acid-monomethylene sulfonic acid, said builder and said surfactant being present in an amount sufficient to achieve the desired washing result, the ratio by weight of said detergent surfactant to said builder being in the range of from about 1:10 to about 3: 1, said system having a pH between about 8 and about 12.
Claim 23
Dependent Claim 90 words
An aqueous washing system composed of water, an organic detergent surfactant and, as a builder therefor, a water-soluble salt selected from the group consisting of alkali metal salts, ammonium salts, and alkyl ammonium salts of nitrilodiacetic acid-monomethylene sulfonic acid, said builder and said surfactant being present in an amount sufficient to achieve the desired washing result, the ratio by weight of said detergent surfactant to said builder being in the range of from about 1:10 to about 3: 1, said system having a pH between about 8 and about 12.
Claim 24
Dependent Claim 18 words
The method of washing articles which comprises contacting the same with an aqueous washing system of claim 18.
Claim 25
Dependent Claim 17 words
The composition of claim 18 wherein said detergent surfactant is one or a mixture of anionic detergents.

References Cited (Backward Citations)

US3346873A Cited
US3368978A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-02-20 1976-08-21 1977-02-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-20 1980-08-21 1981-02-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-20 1984-08-21 1985-02-20 $7700.00 Window Closed / Lapsed

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