Patent US2954358A successfully refreshed from Google Patents.
US2954358A
Expired / Lapsed
US
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Aqueous dispersion containing acrylic acid copolymer and aliphatic polyepoxide
Assignee: Rohm and Haas Co
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Filing: 1957-10-01
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Granted: 1960-09-27
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Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Hurwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
C; C09; C09D; C09D163/00; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A COMPOSITION COMPRISING AN AQUEOUS DISPERSION CONTAINING 1 TO 50% BY WEIGHT OF A MIXTURE OF (A) 40 TO 95 PARTS BY WEIGHT OF A WATER-INSOLUBLE LINEAR THERMOPLASTIC COPOLYMER SELECTED FROM THE GROUP CONSISTING OF COPOLYMERS, THEIR AMMONIUM SALTS AND THEIR SALTS WITH WATER-SOLUBLE MONAMINES, OF 1 TO 10 MOLE PERCENT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID AND 90 TO 99 MOLE PERCENT OF AT LEAST ONE ALKYL ESTER OF ONE OF SAID ACIDS IN WHICH THE ALKYL GROUP HAS FROM 1 TO 18 CARBON ATOMS, AND (B) 5 TO 60 PARTS BY WEIGHT OF A WATER-DISPERSIBLE A ALIPHATIC POLYEPOXIDE CONTAINING AT LEAST TWO VIC-EPOXY GROUPS IN WHICH THE EPOXY OXYGEN ATOM IS ATTACHED TO ADJACENT CARBON ATOMS.
Claim 2
Dependent Claim
126 words
A COMPOSITION COMPRISING AN AQUEOUS DISPERSION CONTAINING 1 TO 50% BY WEIGHT OF A MIXTURE OF (A) 40 TO 95 PARTS BY WEIGHT OF A WATER-INSOLUBLE LINEAR THERMOPLASTIC COPOLYMER SELECTED FROM THE GROUP CONSISTING OF COPOLYMERS, THEIR AMMONIUM SALTS AND THEIR SALTS WITH WATER-SOLUBLE MONAMINES, OF 1 TO 10 MOLE PERCENT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID AND 90 TO 99 MOLE PERCENT OF AT LEAST ONE ALKYL ESTER OF ONE OF SAID ACIDS IN WHICH THE ALKYL GROUP HAS FROM 1 TO 18 CARBON ATOMS, AND (B) 5 TO 60 PARTS BY WEIGHT OF A WATER-DISPERSIBLE A ALIPHATIC POLYEPOXIDE CONTAINING AT LEAST TWO VIC-EPOXY GROUPS IN WHICH THE EPOXY OXYGEN ATOM IS ATTACHED TO ADJACENT CARBON ATOMS.
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) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |