US3287300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monocarboxylic acid added to vinyl ester polymer emulsion to lower the coalescence temperature
Assignee: Shell USA Inc
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Filing: 1964-03-09
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Granted: 1966-11-22
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Hendricus A Oosterhof
- 👤 Ruyter Klaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:03
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR PREPARING POLYVINYL ESTER EMULSIONS HAVING DEPRESSED FILM-FORMING TEMPERATURES WHICH COMPRISES ADDING FROM 0.1% TO 20% OF AN ALIPHATIC MONOCARBOXYLIC ACID HAVING FROM 9 TO 22 CARBON ATOMS IN THE MOLECULE BASED ON THE WEIGHT OF POLYMER TO AN AQUEOUS EMULSION OF A POLYMER OF A VINYL ESTER.
Claim 2
Dependent Claim
50 words
A PROCESS FOR PREPARING POLYVINYL ESTER EMULSIONS HAVING DEPRESSED FILM-FORMING TEMPERATURES WHICH COMPRISES ADDING FROM 0.1% TO 20% OF AN ALIPHATIC MONOCARBOXYLIC ACID HAVING FROM 9 TO 22 CARBON ATOMS IN THE MOLECULE BASED ON THE WEIGHT OF POLYMER TO AN AQUEOUS EMULSION OF A POLYMER OF A VINYL ESTER.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |