US4608197A
Expired / Lapsed
US
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Alkoxylated ether sulfate anionic surfactants from branched chain plasticizer alcohols
Assignee: Lyondell Chemical Technology LP
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Filing: 1984-06-25
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Granted: 1986-08-26
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Expires: 2004-06-25
Abstract
Abstract Alkoxylated ether sulfate anionic surfactants of this invention are prepared by conventional procedures, e.g., oxyalkylation with propylene oxide or 1,2-butylene oxide of a branched chain alcohol; optionally followed by oxyalkylation with ethylene oxide or with a mixture of ethylene oxide and higher alkylene oxide; sulfation of the alkoxylated product; and neutralization of the sulfated derivative. The alkoxylated ether sulfate anionic surfactants of the present invention are liquids which exhibit superior detergency to polyester fabrics, excellent hard water stability, low foaming, low odor, and exhibit excellent compatibility with non-ionic and other surfactants in detergent formulations.
Inventors
- 👤 Haven S. Kesling, Jr.
- 👤 Hyman D. Gillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:26
CPC Classifications
C; C07; C07C; C07C305/00; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/29; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
143 words
A water-soluble, liquid alkoxylated ether sulfate anionic surfactant having the formula: RO[CH.sub.2 CH(R')O].sub.m Z.sub.n SO.sub.3 M-- wherein R is a branched chain hydrocarbon alkyl radical containing of from about 4 to 11 carbon atoms; R' is a member selected from the group consisting of methyl and ethyl; m is an integer of from 6 to 12; Z is an oxyethylene group or a random mixture of oxyethylene groups and oxyalkylene groups present in the radical --CH 2 CH(R')O--, the molar ratio of oxyethylene to oxyalkylene groups in said mixture being such that the total molar ratio of oxyethylene to oxyalkylene groups in said formula is from about 1:1 to 1:10; n is an integer of from 0 to 4; and M is hydrogen, an alkali metal, an alkaline earth metal; ammonium or a primary, secondary, tertiary or quaternary alkyl ammonium or alkyolammonium ion.
Claim 2
Dependent Claim
143 words
A water-soluble, liquid alkoxylated ether sulfate anionic surfactant having the formula: RO[CH.sub.2 CH(R')O].sub.m Z.sub.n SO.sub.3 M-- wherein R is a branched chain hydrocarbon alkyl radical containing of from about 4 to 11 carbon atoms; R' is a member selected from the group consisting of methyl and ethyl; m is an integer of from 6 to 12; Z is an oxyethylene group or a random mixture of oxyethylene groups and oxyalkylene groups present in the radical --CH 2 CH(R')O--, the molar ratio of oxyethylene to oxyalkylene groups in said mixture being such that the total molar ratio of oxyethylene to oxyalkylene groups in said formula is from about 1:1 to 1:10; n is an integer of from 0 to 4; and M is hydrogen, an alkali metal, an alkaline earth metal; ammonium or a primary, secondary, tertiary or quaternary alkyl ammonium or alkyolammonium ion.
Claim 3
Dependent Claim
20 words
The anionic surfactant of claim 1 wherein R is an alkyl radical containing of from 8 to 10 carbon atoms.
Claim 4
Dependent Claim
10 words
The anionic surfactant of claim 1 wherein R' is methyl.
Claim 5
Dependent Claim
25 words
The anionic surfactant of claim 1 wherein R is a branched alkyl radical containing of from 8 to 10 carbon atoms and R' is methyl.
Claim 6
Dependent Claim
12 words
The anionic surfactant of claim 4 wherein M is an alkali metal.
Claim 7
Dependent Claim
10 words
The anionic surfactant of claim 4 wherein M is sodium.
Claim 8
Dependent Claim
10 words
The anionic surfactant of claim 4 wherein M is potassium.
Claim 9
Dependent Claim
10 words
The anionic surfactant of claim 4 wherein M is ammonium.
Claim 10
Dependent Claim
10 words
The anionic surfactant of claim 4 wherein M is hydrogen.
Claim 11
Dependent Claim
23 words
The anionic surfactant of claim 3 wherein m is an integer of from 8 to 10; n is 0 and M is sodium.
Claim 12
Dependent Claim
28 words
An aqueous, liquid surfactant concentrate composition comprising at least about 5%, but not more than 50%, by weight, of water, and the active anionic surfactant of claim 1.
Claim 13
Dependent Claim
28 words
An aqueous, liquid surfactant concentrate composition comprising at least about 5%, but not more than 50%, by weight, of water, and the active anionic surfactant of claim 4.
Claim 14
Dependent Claim
28 words
An aqueous, liquid surfactant concentrate composition comprising at least about 5%, but not more than 50%, by weight, of water, and the active anionic surfactant of claim 6.
Claim 15
Dependent Claim
28 words
An aqueous, liquid surfactant concentrate composition comprising at least about 5%, but not more than 50%, by weight, of water, and the active anionic surfactant of claim 10.
References Cited (Backward Citations)
GB738538A
Cited
GB797119A
Cited
US3843706A
Cited
US3931271A
Cited
US3775349A
Cited
DE2226988A1
Cited
US3875202A
Cited
US4077917A
Cited
US3956401A
Cited
JPS5584399A
Cited
US4259215A
Cited
US4395364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |