US3883447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent liquid detergent composition
Assignee: Kao Corp
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Filing: 1972-12-20
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Granted: 1975-05-13
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Expires: 1992-12-20
Abstract
Abstract A liquid detergent composition containing more than 25% (by weight; the same shall apply hereinafter) of a surfactant and a nitrilotriacetic acid salt. The surfactant comprises a mixture of 30 to 55% of a straight chain alkylbenzene sulfonate, 30 to 60% of an Alpha -olefin sulfonate and 5 to 20% of polyoxyethylene alkyl- or alkylphenyl ether. The weight ratio of the nitrilotriacetic acid salt to the surfactant is in the range of from about 0.1 to 3:1.
Inventors
- 👤 Fumikatsu Tokiwa
- 👤 Kyozaburo Tachibana
- 👤 Yutaka Minegishi
- 👤 Tetsuya Imamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:58
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/33; C11D1/00; C11D1/66; C11D1/83; C11D1/831
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
30 words
A TRANSPARENT, STABLE, LIQUID DETERGENT COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF A. AS ESSENTIALLY THE ONLY ORGANIC SURFACTANT COMPONENTS IN THE DETERGENT COMPOSITION, A THREE COMPONENT SURFACTANT CONSISTING ESSENTIALLY OF
Claim 2
Dependent Claim
30 words
A TRANSPARENT, STABLE, LIQUID DETERGENT COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF A. AS ESSENTIALLY THE ONLY ORGANIC SURFACTANT COMPONENTS IN THE DETERGENT COMPOSITION, A THREE COMPONENT SURFACTANT CONSISTING ESSENTIALLY OF
Claim 3
Dependent Claim
14 words
FROM ABOUT 30 TO ABOUT 55 PERCENT BY WEIGHT OF STRAIGHT CHAIN ALKYLBENZENE SULFONATE
Claim 4
Dependent Claim
14 words
FROM ABOUT 30 TO ABOUT 55 PERCENT BY WEIGHT OF STRAIGHT CHAIN ALKYLBENZENE SULFONATE
Claim 5
Dependent Claim
13 words
FROM ABOUT 30 TO ABOUT 60 PERCENT BY WEIGHT OF AOLEFIN SULFONATE, AND
Claim 6
Dependent Claim
13 words
FROM ABOUT 30 TO ABOUT 60 PERCENT BY WEIGHT OF AOLEFIN SULFONATE, AND
Claim 7
Dependent Claim
14 words
from about 30 to about 60 percent by weight of Alpha -olefin sulfonate, and
Claim 8
Dependent Claim
14 words
from about 30 to about 60 percent by weight of Alpha -olefin sulfonate, and
Claim 9
Dependent Claim
33 words
A liquid detergent composition according to claim 1, in which said straight chain alkylbenzene sulfonate has in the alkyl group an average number of carbon atoms in the range of 10 to 14.
Claim 10
Dependent Claim
28 words
A liquid detergent composition according to claim 2, in which the Alpha -olefin sulfonate has an average number of carbon atoms in the range of 14 to 18.
Claim 11
Dependent Claim
53 words
from about 5 to about 20 percent by weight of polyoxyethylene alkyl- or alkylphenyl ether; B. from about 0.1 to 3.0 parts by weight, per one part of constituent A, or water-soluble salt of nitrilotri-acetic acid; the composition containing at least 25 percent by weight of the sum of constituents A and B.
Claim 12
Dependent Claim
53 words
from about 5 to about 20 percent by weight of polyoxyethylene alkyl- or alkylphenyl ether; B. from about 0.1 to 3.0 parts by weight, per one part of constituent A, or water-soluble salt of nitrilotri-acetic acid; the composition containing at least 25 percent by weight of the sum of constituents A and B.
Claim 13
Dependent Claim
53 words
FROM ABOUT 5 TO ABOUT 20 PERCENT BY WEIGHT OF POLYOXYETHYLENE ALKYL- OR ALKYLPHENYL ETHER; B. FROM ABOUT 0.1 TO 3.0 PARTS BY WEIGHT, PER ONE PART OF CONSTITUENT A, OR WATER-SOLUBLE SALT OF NITRILOTRI-ACETIC ACID; THE COMPOSITION CONTAINING AT LEAST 25 PERCENT BY WEIGHT OF THE SUM OF CONSTITUENTS A AND B.
Claim 14
Dependent Claim
53 words
FROM ABOUT 5 TO ABOUT 20 PERCENT BY WEIGHT OF POLYOXYETHYLENE ALKYL- OR ALKYLPHENYL ETHER; B. FROM ABOUT 0.1 TO 3.0 PARTS BY WEIGHT, PER ONE PART OF CONSTITUENT A, OR WATER-SOLUBLE SALT OF NITRILOTRI-ACETIC ACID; THE COMPOSITION CONTAINING AT LEAST 25 PERCENT BY WEIGHT OF THE SUM OF CONSTITUENTS A AND B.
Claim 15
Dependent Claim
68 words
A liquid detergent composition according to claim 3, in which said ether is selected from the group consisting of (a) polyoxyethylene alkyl ether containing from 4 to 14 oxyethylene units and in which the alkyl group has from 8 to 18 carbon atoms, and (b) polyoxyethylene alkylphenyl ether containing from 6 to 12 oxyethylene units and in which the alkyl group has from 8 to 12 carbon atoms.
Claim 16
Dependent Claim
22 words
A liquid detergent composition according to claim 1 and additionally containing from 2 to 25 percent by weight of inorganic builder salts.
Claim 17
Dependent Claim
30 words
A liquid detergent composition according to claim 1, in which the weight ratio of nitrilotriacetic acid salt (B) to constituent (A) is in the range ofB/A (0.2 - 100) /1.
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 |