US3342765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl ester emulsions containing alpha-branched, saturated, aliphatic monocarboxylic acid salts
Assignee: Shell USA Inc
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Filing: 1964-04-14
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Granted: 1967-09-19
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Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Hendricus A Oosterhof
- 👤 Ruyter Klaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR PREPARING POLYMER FILMS FROM POLYVINYL ESTER EMULSIONS HAVING DEPRESSED FILM-FORMING TEMPERATURES WHICH COMPRISES (1) POLYMERIZING AT LEAST ONE VINYL ESTER IN AN AQUEOUS EMULSION SYSTEM, (2) ADDING FROM 0.1% TO 20% OF A MONOVALENT CATION SALT OF MIXED ALPHA-BRANCHED, SATURATED, ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING FROM 9 TO 22 CARBON ATOMS IN THE MOLECULE BASED ON THE WEIGHT OF POLYMER TO SAID AQUEOUS EMULSION, SAID MONOCARBOXYLIC ACIDS BEING PREPARED BY REACTING MONOOLEFINS WITH CARBON MONOXIDE AND WATER IN THE PREENCE OF LIQUID ACIDIC CATALYSTS, (3) APPLYING THE POLYVINYL ESTER EMULSION TO A SURFACE AND (4) ALLOWING THE WATER TO EVAPORATE TO CURE THE FILM.
Claim 2
Dependent Claim
106 words
A PROCESS FOR PREPARING POLYMER FILMS FROM POLYVINYL ESTER EMULSIONS HAVING DEPRESSED FILM-FORMING TEMPERATURES WHICH COMPRISES (1) POLYMERIZING AT LEAST ONE VINYL ESTER IN AN AQUEOUS EMULSION SYSTEM, (2) ADDING FROM 0.1% TO 20% OF A MONOVALENT CATION SALT OF MIXED ALPHA-BRANCHED, SATURATED, ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING FROM 9 TO 22 CARBON ATOMS IN THE MOLECULE BASED ON THE WEIGHT OF POLYMER TO SAID AQUEOUS EMULSION, SAID MONOCARBOXYLIC ACIDS BEING PREPARED BY REACTING MONOOLEFINS WITH CARBON MONOXIDE AND WATER IN THE PREENCE OF LIQUID ACIDIC CATALYSTS, (3) APPLYING THE POLYVINYL ESTER EMULSION TO A SURFACE AND (4) ALLOWING THE WATER TO EVAPORATE TO CURE THE FILM.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |