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US4094806A Expired / Lapsed US ⏱️ 0.0 years remaining

Photoactivated bleach-compositions

Assignee: Procter and Gamble Co
•
Filing: 1976-10-22
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Granted: 1978-06-13
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Expires: 1996-10-22
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Abstract

Abstract An unbuilt liquid detergent composition containing sulfonated zinc phthalocyanine as a bleach photoactivator is provided for removing stains from textiles. A process for removing stains from textiles by treating the textiles with an aqueous solution of the unbuilt detergent compositions of this invention in the presence of visible light and oxygen is provided. Preferred compositions contain a high proportion of zinc phthalocyanine tri and tetra sulfonates in the bleach photoactivator component.

Inventors

  • 👤 Brandon Helmholz Wiers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 17:59
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0063; C11D3/40

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 155 words
An unbuilt liquid detergent composition consisting essentially of: (a) from 10 to 80% by weight of the composition of a water-soluble organic surfactant chosen from the group consisting of water-soluble anionic and nonionic surfactants and mixtures thereof; (b) 0.04 to 0.80% by weight of the composition of sulfonated zinc phthalocyanine species characterized by RDV's for its individual species as folows: Unsulfonated:0 Monosulfonated:0 Disulfonated: 0 Tetrasulfonated:84-94 Trisulfonated:(100)-(RDV for tetrasulfonated); (c) 0 to 5% by weight of the composition of an electrolyte salt which is not an alkaline detergency builder salt; (d) 1 to 90% by weight of the composition of a solvent which is chosen from the group consisting of water and alcohol in which the alcohol is a lower hydrocarbon monohydric alcohol containing from 1 to 5 carbon atoms; and (e) 0 to 50% by weight of the composition of free alkanolamine selected from the group consisting of mono-, di-, and triethanolamine and mixtures thereof.
Claim 2
Dependent Claim 155 words
An unbuilt liquid detergent composition consisting essentially of: (a) from 10 to 80% by weight of the composition of a water-soluble organic surfactant chosen from the group consisting of water-soluble anionic and nonionic surfactants and mixtures thereof; (b) 0.04 to 0.80% by weight of the composition of sulfonated zinc phthalocyanine species characterized by RDV's for its individual species as folows: Unsulfonated:0 Monosulfonated:0 Disulfonated: 0 Tetrasulfonated:84-94 Trisulfonated:(100)-(RDV for tetrasulfonated); (c) 0 to 5% by weight of the composition of an electrolyte salt which is not an alkaline detergency builder salt; (d) 1 to 90% by weight of the composition of a solvent which is chosen from the group consisting of water and alcohol in which the alcohol is a lower hydrocarbon monohydric alcohol containing from 1 to 5 carbon atoms; and (e) 0 to 50% by weight of the composition of free alkanolamine selected from the group consisting of mono-, di-, and triethanolamine and mixtures thereof.
Claim 3
Dependent Claim 67 words
A composition according to claim 1 wherein the water-soluble organic surfactant is present in an amount of from 20 to 50% by weight of the composition and in which the electrolyte salt is present in an amount of from 0.2 to 5% by weight of the composition and in which the solvent is present in an amount of from 20 to 80% by weight of the composition.
Claim 4
Dependent Claim 29 words
A composition according to claim 2 wherein the solvent is a mixture of water and alcohol in which the weight ratio of water to alcohol is greater than 3:1.
Claim 5
Dependent Claim 31 words
A composition according to claim 3 wherein the solvent is a mixture of water and alcohol in which the weight ratio of water to alcohol is from 4:1 to about 7:1.
Claim 6
Dependent Claim 195 words
A composition according to claim 2 wherein the water-soluble organic surfactant is a mixture of a nonionic surfactant chosen from the group consisting of a polyoxyethylene oxide alkylphenol condensate having 5-25 ethylene oxide groups per mole of alkyl phenol and having 6 to 12 carbon atoms in the alkyl group of the alkyl phenol, a condensation product of an aliphatic alcohol with ethylene oxide having 2 to 15 moles of ethylene oxide per mole of alcohol and and having 8 to 22 carbon atoms in the alkyl group of the aliphatic alcohol, and a trialkyl amine oxide having a straight chain alkyl group having from 10 to 14 carbon atoms therein and two short chain alkyl groups having 1 to 2 carbon atoms therein; and an anionic surfactant chosen from the group consisting of alkali metal ammonium, amine and ethanolamine salts of C 10-14 linear alkyl aryl sulfonic acids, C 10-16 α-olefin sulfonic acids, C 10-18 polyglycolether sulfuric acids and α-sulfonated C 12-18 fatty acids and wherein the weight ratio of nonionic surfactant to anionic surfactant in the composition is from about 1:8 to 8:1 based on the free acid form of the anionic surfactant.
Claim 7
Dependent Claim 102 words
A composition according to claim 5 wherein the water-soluble organic surfactant is a mixture of a nonionic surfactant produced by the condensation of from about 2 to about 15 moles of ethylene oxide with one mole of an alcohol having a straight or branched chain having 8 to 12 carbon atoms therein, and an anionic surfactant which is an ethanolamine salt of an alkylbenzene sulfonic acid in which the alkyl group of the alkylbenzene sulfonic acid has 10 to 14 carbon atoms therein, and wherein the weight ratio of nonionic surfactant to anionic surfactant in the composition is from 1.4:1 to 8:1.
Claim 8
Dependent Claim 48 words
A composition according to claim 6 wherein the electrolyte salt is chosen from the group consisting of the alkali metal chlorides and sulfates and the salts formed from the reaction of alkanolamines with sulfuric acid and hydrochloric acid and formic acid, acetic acid, propionic acid and butyric acid.
Claim 9
Dependent Claim 17 words
A composition according to claim 7 wherein the electrolyte is from 1 to 3% of potassium chloride.
Claim 10
Dependent Claim 52 words
A composition according to claim 8 wherein the free alkanolamine is at least 1% by weight of the composition and wherein the nonionic surfactant is further characterized by an HLB of from about 8.0 to about 17.0 and by a CMC from about 0.006 to about 0.10 weight percent at 25° C.
Claim 11
Dependent Claim 22 words
A composition according to claim 1 wherein the free alkanolamine is from about 2 to about 15% by weight of the composition.
Claim 12
Dependent Claim 67 words
A composition according to claim 10 wherein the water-soluble organic surfactant is present in an amount of from 20 to 50% by weight of the composition and in which the electrolyte salt is present in an amount of from 0.2 to 5% by weight of the composition and in which the solvent is present in an amount of from 20 to 80% by weight of the composition.
Claim 13
Dependent Claim 29 words
A composition according to claim 11 wherein the solvent is a mixture of water and alcohol in which the weight ratio of water to alcohol is greater than 3:1.
Claim 14
Dependent Claim 48 words
A composition according to claim 11 wherein the electrolyte salt is chosen from the group consisting of the alkali metal chlorides and sulfates and the salts formed from the reaction of alkanolamines with sulfuric acid and hydrochloric acid and formic acid, acetic acid, propionic acid and butyric acid.
Claim 15
Dependent Claim 17 words
A composition according to claim 13 wherein the electrolyte is from 1 to 3% of potassium chloride.

References Cited (Backward Citations)

ZA723212B Cited
US3927967A Cited
US4033718A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-06-12 1981-12-12 1982-06-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-06-12 1985-12-12 1986-06-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-06-12 1989-12-12 1990-06-13 $7700.00 Window Closed / Lapsed

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