US3310496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali stable and soluble surfactants
Assignee: Rohm and Haas Co
•
Filing: 1965-03-12
•
Granted: 1967-03-21
•
Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Richard Corey Mansfield
- 👤 Jean Dupre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:52
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/14; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C11; C11D; C11D1/00; C11D1/02; C11D1/34; C11D1/345; C11D1/66; C11D1/72; C11D1/721
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
67 words
AN ALKALI-STABLE AND SOLUBLE SURFACTANT COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF ABOUT 65 TO 95 PERCENT OF A COMPONENT M WITH ABOUT 35 TO 5 PERCENT OF A COMPONENT N, WHERE M IS A SURFACE-ACTIVE COMPOSITION, WHICH CONTAINS SUPWARDS OF 85% PRIMARY PHOSPHATE ESTERS, OF THE CLASS CONSISTING OF THE CONDENSATION PRODUCT, AND THE SALTS OF SAID PRODUCT, OF THE REACTION OF R(CH2CH2O)XH AND POLYPHOSPHORIC ACID,
Claim 2
Dependent Claim
67 words
AN ALKALI-STABLE AND SOLUBLE SURFACTANT COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF ABOUT 65 TO 95 PERCENT OF A COMPONENT M WITH ABOUT 35 TO 5 PERCENT OF A COMPONENT N, WHERE M IS A SURFACE-ACTIVE COMPOSITION, WHICH CONTAINS SUPWARDS OF 85% PRIMARY PHOSPHATE ESTERS, OF THE CLASS CONSISTING OF THE CONDENSATION PRODUCT, AND THE SALTS OF SAID PRODUCT, OF THE REACTION OF R(CH2CH2O)XH AND POLYPHOSPHORIC ACID,
Claim 3
Dependent Claim
57 words
A CLEANING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF ABOUT 88 TO 99 PERCENT BY WEIGHT OF AN ALKALI METAL SALT FROM THE CLASS CONSISTING OF CAUSTIC SODA, SODIUM METASILICATE, SODA ASH, TRISODIUM PHOSPHATE, SODIUM TRIPOLYPHOSPHATE, SODIUM ORTHOSILICATE, TETRASODIUM PYROPHOSPHATE AND TETRAPOTASSIUM PYROPHOSPHATE, AND ABOUT 1 TO 12 PERCENT BY WEIGHT OF THE SURFACTANT OF CLAIM 1.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |