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US3130164A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid bleaching and detergent composition

Assignee: Lever Brothers Co
•
Filing: 1959-07-03
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Granted: 1964-04-21
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Expires: 1979-07-03
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Abstract

Abstract A stable concentrated liquid detergent composition comprises (a) at least one anionic detergent of formula RO(CnH2nO)mSO3M wherein R is an alkyl or alkylaryl radical in which the alkyl groups contain 6-18 carbon atoms, M is alkali metal, ammonium or substituted ammonium, n is 2 or 3, and m is 1-8, (b) an alkali metal condensed phosphate, suitably in an amount of 5-30% by weight of the composition, particularly sodium pyro- and/or tripoly-phosphate, and (c) a carboxymethylcellulose soil suspending agent, preferably sodium carboxymethylcellulose having a degree of substitution of 0.4-1.1. It is preferred that a further anionic detergent (d) be included, for example an alkyl sulphate, an alkylaryl sulphonate, or an acylated hydroxy-or amino-sulphonate, when the weight ratio of (a) to (d) is preferably 1:1 to 1:6; the total of (a) and (d) should be 5-25% by weight of the liquid composition. 1-5% by weight of sodium silicate having a ratio Na2O:SiO2 of 1:3.3 is preferably also included, and sodium carbonate, fatty acid alkanolamide, inorganic salts, optical brighteners, perfume and colour may also be incorporated.

Inventors

  • 👤 Best Georg Peter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 08:31
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/29; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D3/39; C11D3/3947; D; D06; D06L; D06L4/00; D06L4/10; D06L4/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 176 words
A LIQUID BLEACHING AND DETERGENT COMPOSITION IN THE FORM OF A STABLE, POURABLE DISPERSION WHICH CONSISTS ESSENTIALLY OF WATER AND, BY WEIGHT OF THE COMPOSITION: (A) OF AT LEAST ONE ANIONIC ACTIVE DETERGENT A OF THE GENERAL FORMULA RO.(RNH2NO)M.SO3M, IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 6 TO 18 CARBONS ATOMS AND ALKYLARYL RADICALS HAVING FROM 6 TO 18 CARBON ATOMS IN THE ALKYL RADICAL; M IS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL, AMMONIUM AND SUBSTITUTED AMMONIUM RADICALS; (CNH2NO) IS SELECTED FROM THE GROUP CONSISTING OF (C2H4O) AND (C3H6O); AND M IS FROM 1 TO 8; (B) FROM ABOUT 5 TO 30% OF A CONDENSED INORGANIC PHOSPHATE; (C) AS A SOIL-SUSPENDING AGENT, A MINOR AMOUNT OF A CARBOXYMETHYLCELLULOSE HAVING A DEGREE OF SUBSTITUTION FROM 0.4. TO 1.1; AND (D) FROM ABOUT 0.5 TO 3% OF HYDROGEN PEROXIDE, SAID ANIONIC ACTIVE DETERGENT A BEING PRESENT IN SUCH PROPORTIONS THAT THE COMPOSITIONS ARE IN THE FORM OF STABLE, POURABLE DISPERSIONS WHICH HAVE LITTLE TENDENCY TO SEPARATE OUT ON STANDING.
Claim 2
Dependent Claim 176 words
A LIQUID BLEACHING AND DETERGENT COMPOSITION IN THE FORM OF A STABLE, POURABLE DISPERSION WHICH CONSISTS ESSENTIALLY OF WATER AND, BY WEIGHT OF THE COMPOSITION: (A) OF AT LEAST ONE ANIONIC ACTIVE DETERGENT A OF THE GENERAL FORMULA RO.(RNH2NO)M.SO3M, IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 6 TO 18 CARBONS ATOMS AND ALKYLARYL RADICALS HAVING FROM 6 TO 18 CARBON ATOMS IN THE ALKYL RADICAL; M IS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL, AMMONIUM AND SUBSTITUTED AMMONIUM RADICALS; (CNH2NO) IS SELECTED FROM THE GROUP CONSISTING OF (C2H4O) AND (C3H6O); AND M IS FROM 1 TO 8; (B) FROM ABOUT 5 TO 30% OF A CONDENSED INORGANIC PHOSPHATE; (C) AS A SOIL-SUSPENDING AGENT, A MINOR AMOUNT OF A CARBOXYMETHYLCELLULOSE HAVING A DEGREE OF SUBSTITUTION FROM 0.4. TO 1.1; AND (D) FROM ABOUT 0.5 TO 3% OF HYDROGEN PEROXIDE, SAID ANIONIC ACTIVE DETERGENT A BEING PRESENT IN SUCH PROPORTIONS THAT THE COMPOSITIONS ARE IN THE FORM OF STABLE, POURABLE DISPERSIONS WHICH HAVE LITTLE TENDENCY TO SEPARATE OUT ON STANDING.

References Cited (Backward Citations)

US2155899A Cited
US2254434A Cited
US2698302A Cited
GB783585A Cited
US2903431A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-04-21 1967-10-21 1968-04-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-04-21 1971-10-21 1972-04-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-04-21 1975-10-21 1976-04-21 $7700.00 Window Closed / Lapsed

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