EP0630965A1
Expired / Lapsed
EP
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Concentrated liquid hard surface detergent compositions containing maleic acid-olefin copolymers
Assignee: Procter and Gamble Co
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Filing: 1994-06-02
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Granted: —
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Expires: 2014-06-02
Abstract
Abstract Disclosed are concentrated alkaline liquid detergent compositions suitable for dilution with hard or de-ionized water. The compositions can be stored before and after dilution for prolonged periods at temperatures ranging from about 40°F (4°C) to about 100°F (38°C) without precipitates forming. The compositions contain a maleic acid-olefin copolymer, a detergent surfactant, a solvent/buffer system comprising beta-aminoalkanol and/or monoethanolamine, and less than about 85% water. The copolymer acts as a crystallization inhibitor and is uniquely soluble in the concentrated liquid detergent compositions.
Inventors
- 👤 David Charles Underwood
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 02:36
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D3/26; C11D3/30; C11D3/43
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
125 words
Concentrated liquid detergent compositions suitable for dilution with hard or de-ionized water, comprising: (a) from 0.05 to 1%, preferably from 0.1% to 0.9%, of a maleic acid-olefin copolymer having the formula where L₁ is hydrogen, ammonium or an alkali metal; R₁, R₂, R₃ and R₄ are independently selected from the group consisting of hydrogen and an alkyl group containing from 1 to 8 carbon atoms, preferably from 1 to 5 carbon atoms; and the monomer ratio of x to y is from 1:5 to 5:1, preferably 1.5:1 to a:1.5; (b) from 0.05 to 10% detergent surfactant; (c) from 0.5% to 10% monoethanolamine and/or beta-aminoalkanol containing from 3 to 6 carbon atoms; (d) a pH of from 9 to 13; and (e) less than 85% water.
Claim 2
Dependent Claim
95 words
The composition according to Claim 1 wherein the detergent surfactant is a hydrocarbyl amidoalkylenesulfobetaine having the formula wherein each R₇ is an alkyl group containing from 8 to 20 carbon atoms; each R₈ is selected from the group consisting of hydrogen, alkyl groups containing from 1 to 4 carbon atoms and substituted alkyl groups containing from 1 to 4 carbon atoms; each R₉ is selected from the group consisting of hydrogen and hydroxy groups; and each n is a number from 1 to 4 with no more than one hydroxy group in any C(R₉)₂ moiety.
Claim 3
Dependent Claim
49 words
The composition according to Claim 2 wherein each R₇ is an alkyl group containing from 12 to 16 carbon atoms; each R₈ is selected from the group consisting of methyl, ethyl, propyl, hydroxy substituted ethyl, hydroxy substituted propyl, and mixtures thereof; and each n is from 2 to 3.
Claim 4
Dependent Claim
49 words
The composition according to Claim 1 wherein the detergent surfactant is an amine oxide, preferably an amine oxide having the formula where R₁₄ is an alkyl group comprising from 10 to 28 carbon atoms, R₁₅ and R₁₆ are alkyl or hydroxyalkyl groups comprising from 1 to 3 carbon atoms.
Claim 5
Dependent Claim
15 words
The composition according to Claim 1 wherein the detergent surfactant comprises an amphocarboxylate detergent surfactant.
Claim 6
Dependent Claim
32 words
The composition according to Claim 5 further comprising a hydrocarbyl amidoalkylenesulfobetaine detergent surfactant wherein the ratio of the amphocarboxylate to the hydrocarbyl-amidoalkylenesulfobetaine is from 1:3 to 3:1, preferably from 1:1.5 to 1.5:1.
Claim 7
Dependent Claim
48 words
The composition according to Claim 1 wherein the detergent surfactant comprises an anionic surfactant having the formula where R₁₀ and R₁₁ are alkyl groups each independently comprising from 8 to 16 carbon atoms, and L₂ is selected from the group consisting of hydrogen, sodium, ammonium, magnesium and lithium.
Claim 8
Dependent Claim
22 words
The composition according to Claim 1 wherein the composition comprises less than 60%, preferably between 45% and 55%, by weight of water.
Claim 9
Dependent Claim
23 words
The composition according to Claim 1 further comprising from 10% to 30% of non-aqueous solvents having hydrogen bonding parameters of less than 7.7.
References Cited (Backward Citations)
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