Surfactant compositions
Abstract
Abstract WATER-SOLUBLE SURFACTANT COMPOSITIONS WHICH ARE STABLE IN STRONG ALKALINE SOLUTIONS AND WHICH ARE USEFUL AS DETERGENTS AND EMULSIFIERS AND WHICH COMPRISE MIXTURES OF (A) CONDENSATION PRODUCTS OF LONG CHAIN ALIPHATIC MONOCARBOXYLIC ACIDS, DIETHANOLAMINE, AND MONONUCLEAR AROMATIC POLYBASIC ACIDS IN CERTAIN MOLAR RATIOS TO EACH OTHER, DEPENDING UPON WHETHER THE MONONUCLEAR AROMATIC POLYBASIC ACID IS DICARBOXYLIC, TRICARBOXYLIC, TETRACARBOXYLIC OR HEXACARBOXYLIC, ILLUSTRATED BY A CONDENSATION PRODUCT OF 1 MOL OF A LONG CHAIN ALIPHATIC MONOCARBOXYLIC ACID, 6 TO 7.5 MOLS OF DIETHANOLAMINE, AND 2.4 MOLS OF PHTHALIC ANHYDRIDE, WITH (B) SULFONATED ALIPHATIC UNSATURATED CARBOXYLIC ACIDS.
Inventors
- 👤 John T Foley
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |