CA1086178A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Liquid detergent composition
Assignee: Procter and Gamble Co
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Filing: 1977-04-04
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Granted: 1980-09-23
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Expires: 1997-04-04
Abstract
Abstract LIQUID DETERGENT COMPOSITION Jose Luis Arnau Christian Roland Barrat Jean Wevers ABSTRACT OF THE DISCLOSURE The present invention relates to liquid, concentrated, homogeneous, stable, heavy duty detergent compositions. Such compositions contain a polyethoxylated nonionic detergent compound, a minor amount of a polyacid having at least one pK value of at least 5.0, and a liquid carrier, whereby the pH of the liquid composition has a pH in the range between 6.0 and 7.5. The compositions can also contain mixtures of polyethoxylated nonionic detergent compounds, additional amounts of synthetic, anionic detergent compounds, minor amounts of brighteners, suds-regulating and pH-regulating agents, perfumes, dyes and other usual liquid detergent compound additives. Such compositions show enhanced cleaning performance, particularly on bleach-sensitive stains, and have excelled stability on storage.
Inventors
- 👤 Christian R. Barrat
- 👤 Jean Wevers
- 👤 Jose L. Arnau
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-06 06:13
CPC Classifications
—
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
181 words
liquid, concentrated homogeneous stable heavy duty liquid detergent comprising: (a) from about 20% to about 70% by weight of the composition of a soluble ethoxylated nonionic surfactant selected from the group consisting of ethoxylated alcohols containing from about 2 to about 24 moles of ethylene oxide wherein the alcohol is selected from the group consisting of: (i) straight and branched chain primary and secondary, saturated and unsaturated, aliphatic alcohols having from about 8 to about 24 carbon atoms in the hydrocarbyl group thereof, and (ii) alkyl phenols wherein the alkyl group or groups have from about 1 to about 12 carbon atoms, wherein at least one alkyl group has at least 6 carbon atoms and wherein the total number of carbon atoms in the alkyl groups is at most about 15; and mixtures thereof; (b) from about 0.10% to about 1.25% by weight of the composition of a polyacid having at least one pK value of 5.0 or higher; and (c) the balance of the composition being a liquid carrier; wherein the pH of the product is from 6.0 to 7.5.
Claim 2
Dependent Claim
181 words
liquid, concentrated homogeneous stable heavy duty liquid detergent comprising: (a) from about 20% to about 70% by weight of the composition of a soluble ethoxylated nonionic surfactant selected from the group consisting of ethoxylated alcohols containing from about 2 to about 24 moles of ethylene oxide wherein the alcohol is selected from the group consisting of: (i) straight and branched chain primary and secondary, saturated and unsaturated, aliphatic alcohols having from about 8 to about 24 carbon atoms in the hydrocarbyl group thereof, and (ii) alkyl phenols wherein the alkyl group or groups have from about 1 to about 12 carbon atoms, wherein at least one alkyl group has at least 6 carbon atoms and wherein the total number of carbon atoms in the alkyl groups is at most about 15; and mixtures thereof; (b) from about 0.10% to about 1.25% by weight of the composition of a polyacid having at least one pK value of 5.0 or higher; and (c) the balance of the composition being a liquid carrier; wherein the pH of the product is from 6.0 to 7.5.
Claim 3
Dependent Claim
21 words
A composition according to Claim 1 wherein said polyacid is from about 0.25% to about 1.0% by weight of the composition.
Claim 4
Dependent Claim
17 words
A composition according to Claim 2 wherein the pH of the product is from 6.0 to 7Ø
Claim 5
Dependent Claim
27 words
A composition according to Claim 2 wherein said polyacid has at least one pK value of x-1 or higher where x is the pH of the composition.
Claim 6
Dependent Claim
19 words
A composition according to Claim 2 wherein said polyacid has at least two pK values of 5.0 or higher.
Claim 7
Dependent Claim
35 words
A composition according to Claim 4 wherein said polyacid is selected from the group consisting of ethylene diamine tetramethylene phosphonic acid, hexamethylenediamine tetramethylene phosphonic acid, diethylene triamine pentamethylene phosphonic acid, and amino trimethylene phosphonic acid.
Claim 8
Dependent Claim
92 words
A composition according to Claim 1 which also contains an adjunct surfactant selected from the group consisting of synthetic anionic surfactants of the sulfonate and sulfate type, semipolar surface active agents, fatty acid alkanolamides, their water soluble salts and mixtures thereof and wherein the amount of said adjunct surfactant is less than 50% by weight of the total of said soluble ethoxylated nonionic surfactant and said adjunct surfactant in the composition and wherein said total amount of surfactant in the composition is not more than 70% by weight of the total composition.
Claim 9
Dependent Claim
21 words
A composition according to Claim 7 wherein said polyacid is from about 0.25% to about 1.0% by weight of the composition.
Claim 10
Dependent Claim
17 words
A composition according to Claim 7 wherein the pH of the product is from 6.0 to 7Ø
Claim 11
Dependent Claim
27 words
A composition according to Claim 7 wherein said polyacid has at least one pK value of x-l or higher where x is the pH of the composition.
Claim 12
Dependent Claim
57 words
A composition according to Claim 7 wherein said synthetic anionic surfactant of the sulfonate type is selected from the group con-sisting of alkylbenzene sulfonic acid having from about 8 to about 15 carbon atoms in the alkyl group, n-paraffin sulfonic acids having from about 6 to about 20 carbon atoms, water soluble salts thereof, and mixtures thereof.
Claim 13
Dependent Claim
21 words
A composition according to Claim 11 wherein said water soluble salts are the mono-, di- and triethanilamine salts and mixtures thereof.
Claim 14
Dependent Claim
45 words
A composition according to Claim 12 wherein said soluble ethoxylated noniollic surfactant is prepared from primary aliphatic alcohols containing from 12 to 20 carbon atoms condensed with from about 4 moles to about 14 moles of ethylene oxide per mole of alcohol and mixtures thereof.
Claim 15
Dependent Claim
19 words
A composition according to Claim 13 wherein said polyacid has at least two pK values of 5.0 or higher.
Claim 16
Dependent Claim
27 words
A composition according to Claim 14 wherein said polyacid has at least two pK values of x-l or higher where x is the pH of the composition.
Claim 17
Dependent Claim
57 words
A composition according to Claim 14 wherein said liquid carrier is water and an organic solvent selected from the group consisting of lower aliphatic alcohols having from 2 to 6 carbon atomb and from 1 to 3 hydroxyl groups, ethers of diethylene glycol and lower aliphatic monoalcohols having from 1 to 4 carbon atoms and mixtures thereof.
Claim 18
Dependent Claim
23 words
A composition according to Claim 16 wherein said organic solvent is from about 2% to about 15% by weight of the total composition.
Claim 19
Dependent Claim
35 words
A composition according to Claim 17 wherein said polyacid is selected from the group consisting of ethylene diamine tetra-methylene phosphonic acid, hexamethylenediamine tetramethylene phosphonic acid, diethylene triamine pentamethylene phosphonic acid, and amino trimethylene phosphonic acid.
Claim 20
Dependent Claim
197 words
19 A liquid, concentrated homogeneous stable heavy duty liquid detergent comprising: (a) from about 20% to about 70% by weight of the composition of a soluble ethoxylated nonionic surfactant selected from the group consisting of ethoxylated alcohols containing from about 2 to about 24 moles of ethylene oxide wherein the alcohol is selected from the group consisting of: (i) straight and branched chain primary and secondary, saturated and unsaturated, aliphatic alcohols having from about 8 to about 24 carbon atoms in the hydrocarbyl group thereof, and (ii) alkyl phenols wherein the alkyl group or groups have from about 1 to about 12 carbon atoms, wherein at least one alkyl group has at least 6 carbon atoms and wherein the total number of carbon atoms in the alkyl groups is at most about 15; and mixtures thereof; (b) from about 0.10% to about 1.25% by weight of the composition of a polyacid selected from the group consisting of: ethylenediamine tetramethylene phosphonic acid, hexamethylene diamine tetramethylene phosphonic acid, diethylene triamine pentamethylene phosphonic acid and aminotrimethlylene phosphonic acid; and (c) the balance of the composition being a liquid carrier; wherein the pH of the product is from 6.0 to 7.5.
Claim 21
Dependent Claim
197 words
19 A liquid, concentrated homogeneous stable heavy duty liquid detergent comprising: (a) from about 20% to about 70% by weight of the composition of a soluble ethoxylated nonionic surfactant selected from the group consisting of ethoxylated alcohols containing from about 2 to about 24 moles of ethylene oxide wherein the alcohol is selected from the group consisting of: (i) straight and branched chain primary and secondary, saturated and unsaturated, aliphatic alcohols having from about 8 to about 24 carbon atoms in the hydrocarbyl group thereof, and (ii) alkyl phenols wherein the alkyl group or groups have from about 1 to about 12 carbon atoms, wherein at least one alkyl group has at least 6 carbon atoms and wherein the total number of carbon atoms in the alkyl groups is at most about 15; and mixtures thereof; (b) from about 0.10% to about 1.25% by weight of the composition of a polyacid selected from the group consisting of: ethylenediamine tetramethylene phosphonic acid, hexamethylene diamine tetramethylene phosphonic acid, diethylene triamine pentamethylene phosphonic acid and aminotrimethlylene phosphonic acid; and (c) the balance of the composition being a liquid carrier; wherein the pH of the product is from 6.0 to 7.5.
Claim 22
Dependent Claim
84 words
A composition according to claim 19 which in addition comprises an anionic adjunct surfactant selected from the group consisting of an alkylbenzene sulfonic acid having from about 8 to about 15 carbon atoms in the alkyl group, a n-paraffin sulfonic acid having from about 6 to about 20 carbon atoms, water soluble salt of said sulfonic acids, and mixtures thereof, whereby the adjunct anionic surfac-tant represents below 50% by weight of the total of the soluble ethoxylated nonionic surfactant and the adjunct anionic surfactant.
Claim 23
Dependent Claim
23 words
A composition in accordance with claim 19 which in addition comprises from 0.01% to about 2% by weight of a silicone suds-regulating agent.
Claim 24
Dependent Claim
86 words
A composition in accordance with claim 19 wherein the ethoxylated nonionic surfactant is represented by a mixture of: (1) a primary aliphatic alcohol ethoxylate obtained from an alcohol, the hydrocarbyl chain of which contains at least 65% branched-chain structure and has from about 16 to 19 carbon atoms, and from 8 to 14 moles of ethylene oxide; (2) an alcohol ethoxylate derived from a primary alcohol having from 12 to 15 carbon atoms in the hydrocarbyl chain and from 3 to 7 moles of ethylene oxide.
References Cited (Backward Citations)
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