Built detergent compositions containing hydroxy ether sulfonates
Abstract
Abstract A detergent composition comprising a compound having the formula 1. R1 is a straight or branched higher alkyl group of C6 to C30, and preferably C10 to C22; 2. R2 is a straight or branched alkyl of C3 to C12, and preferably C3 to C6; 3. R3 to R7 are, independently, hydrogen or straight or branched alkyl of C1 to C10, and preferably hydrogen or lower alkyl of C1 to C4; 4. Z is oxygen (-O-) or sulfur (-S-); 5. x and y have the values 0 to 1 and x+ y 1; and 6. M is a cation such as hydrogen, alkali metal, ammonium, substituted ammonium or amine and preferably a watersolubilizing, salt-forming group. The hydroxy oxa(or thia) sulfonates of the detergent composition provide both detergency and fabric-softening characteristics and are hereinafter referred to generally as hydroxy ether sulfonates.
Inventors
- 👤 Bjorn Sundby
- 👤 Harold Eugene Wixon
Bibliographic Details
Claims Analysis
Total Claims: 16References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |