US3883446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus-free detergent formulation
Assignee: ConocoPhillips Co
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Filing: 1973-02-09
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Granted: 1975-05-13
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Expires: 1993-02-09
Abstract
Abstract Certain salts of water-soluble terpolymers derived from allyl alcohol, sulfur dioxide and acrylic or methacrylic acid have been found useful replacements for phosphorus-containing compounds in detergent formulations containing various surfactants.
Inventors
- 👤 Stephen E Mcguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:05
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3761; C11D3/378
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
147 words
A NONPHOSPHORUS-CONTAINING DETERGENT FORMULATION CONSISTING ESSENTIALLY OF A SURFACTANT AND AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM SALT OF WATER-SOLUBLE TERPOLYMER OF ABOUT 10 TO 40 PERCENT BY WEIGHT ALLYL ALCOHOL, ABOUT 1 TO 43 PERCENT BY WEIGHT SULFUR DIOXIDE AND ABOUT 20 TO 83 PERCENT BY WEIGHT ACRYLIC OR METHACRYLIC ACID, PROVIDED THAT THE PARTICULAR PROPORTIONS FALL WITHIN THE SHADED AREA OF THE DIAGRAM ON THE ANNEXED DRAWING; SAID SURFACTANT BEING A. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKYLBENZENE SULFONATE; B. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM OLEFIN SULFONATE; C. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKYLSULFONATE; D. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKANOL SULFATE; E. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKOXYLATED ALKANOL SULFATE; F. ALKOXYLATED ALCOHOLS; G. OR MIXTURES THEREOF; SAID TERPOLYMER SALT BEING PRESENT IN AMOUNTS RANGING FROM ABOUT 0.1 TO ABOUT 25 PARTS BY WEIGHT PER PART BY WEIGHT OF THE SURFACTANT.
Claim 2
Dependent Claim
147 words
A NONPHOSPHORUS-CONTAINING DETERGENT FORMULATION CONSISTING ESSENTIALLY OF A SURFACTANT AND AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM SALT OF WATER-SOLUBLE TERPOLYMER OF ABOUT 10 TO 40 PERCENT BY WEIGHT ALLYL ALCOHOL, ABOUT 1 TO 43 PERCENT BY WEIGHT SULFUR DIOXIDE AND ABOUT 20 TO 83 PERCENT BY WEIGHT ACRYLIC OR METHACRYLIC ACID, PROVIDED THAT THE PARTICULAR PROPORTIONS FALL WITHIN THE SHADED AREA OF THE DIAGRAM ON THE ANNEXED DRAWING; SAID SURFACTANT BEING A. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKYLBENZENE SULFONATE; B. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM OLEFIN SULFONATE; C. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKYLSULFONATE; D. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKANOL SULFATE; E. AN ALKALI METAL, AMMONIUM, OR ALKYLOLAMMONIUM ALKOXYLATED ALKANOL SULFATE; F. ALKOXYLATED ALCOHOLS; G. OR MIXTURES THEREOF; SAID TERPOLYMER SALT BEING PRESENT IN AMOUNTS RANGING FROM ABOUT 0.1 TO ABOUT 25 PARTS BY WEIGHT PER PART BY WEIGHT OF THE SURFACTANT.
Claim 3
Dependent Claim
142 words
A nonphosphorus-containing detergent formulation according to claim 1 wherein the alkyl group of the alkylol radical of the alkylolammonium moiety containing 2 to 6 cArbon atoms; the alkyl group of the alkylbenzene sulfonate contains 8 to 20 carbon atoms; the olefin sulfonate is derived from mono-olefins having 10 to 24 carbon atoms; the alkyl group of the alkylsulfonate contains 10 to 24 carbon atoms; the alkanol sulfate is derived from monohydroxy alkanols having 10 to 24 carbon atoms; the alkoxylated alkanol sulfate is derived from monohydroxy alkanols having 8 to 24 carbon atoms which have been alkoxylated with up to 80 wt% of a C2 or C3 alkylene oxide; and the alkoxylated alcohol is derived from monohydroxy alkanols containing 8 to 24 carbon atoms which have been alkoxylated with about 45 wt% to 80 wt% of a C2 or C3 alkylene oxide.
Claim 4
Dependent Claim
19 words
A nonphosphorus-containing detergent formulation according to claim 1 wherein the alkali metal in each case is sodium or potassium.
Claim 5
Dependent Claim
18 words
A nonphosphorus-containing detergent formulation according to claim 1 wherein the alkylolammonium moiety in each case is triethanol ammonium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |