US2865878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous coating compositions, articles coated therewith, and methods for producing them
Assignee: Rohm and Haas Co
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Filing: 1955-09-26
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Granted: 1958-12-23
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Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick W Toothill
- 👤 Joseph A Stieber
- 👤 Harold L Hatton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:55
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003; C09; C09D; C09D135/00; C08; C08L; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN AQUEOUS COMPOSITION COMPRISING (1) A WATERSOLUBLE SALT OF AN APPROXIMATELY 1:1 MOL RATIO LINEAR COPOLYMER OF MALEIC ANHYDRIDE AND A BRANCHED-CHAIN UNSATURATED HYDROCARBON OF 4 TO 10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC MONO-OLEFINS AND UNSATURATED TERPENES, SAID SALT BEING OBTAINED BY THE ADDITION TO THE AQUEOUS COPOLYMER DISPERSION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM HYDROXIDE AND VOLATILE, WATER-SOLUBLE AMINES TO NEUTRALIZE ACID-CONTAINING UNITS IN THE COPOLYMER AND HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 500 TO 5000, AND (2) A WATER-INSOLUBLE ETHYLENE OXIDE CONDENSATE OF A HIGHER ALKYLPHENOL CONTAINING AN AVERAGE OF FROM ONE TO FIVE OXYETHYLENE UNITS AND IN WHICH THE ALKYL GROUP HAS 8 TO 18 CARBON ATOMS, THE WEIGHT RATIO OF THE COPOLYMER SALT TO THE CONDENSATE BEING FROM 1:2 TO 5:2 AND THE TOTAL WEIGHT OF THE COPOLYMER SALT AND CONDENSATE BEING AT LEAST 5% BY WEIGHT OF THE AQUEOUS COMPOSITION.
Claim 2
Dependent Claim
154 words
AN AQUEOUS COMPOSITION COMPRISING (1) A WATERSOLUBLE SALT OF AN APPROXIMATELY 1:1 MOL RATIO LINEAR COPOLYMER OF MALEIC ANHYDRIDE AND A BRANCHED-CHAIN UNSATURATED HYDROCARBON OF 4 TO 10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC MONO-OLEFINS AND UNSATURATED TERPENES, SAID SALT BEING OBTAINED BY THE ADDITION TO THE AQUEOUS COPOLYMER DISPERSION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM HYDROXIDE AND VOLATILE, WATER-SOLUBLE AMINES TO NEUTRALIZE ACID-CONTAINING UNITS IN THE COPOLYMER AND HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 500 TO 5000, AND (2) A WATER-INSOLUBLE ETHYLENE OXIDE CONDENSATE OF A HIGHER ALKYLPHENOL CONTAINING AN AVERAGE OF FROM ONE TO FIVE OXYETHYLENE UNITS AND IN WHICH THE ALKYL GROUP HAS 8 TO 18 CARBON ATOMS, THE WEIGHT RATIO OF THE COPOLYMER SALT TO THE CONDENSATE BEING FROM 1:2 TO 5:2 AND THE TOTAL WEIGHT OF THE COPOLYMER SALT AND CONDENSATE BEING AT LEAST 5% BY WEIGHT OF THE AQUEOUS COMPOSITION.
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |