US2545182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyallyl-type alcohols from polyallyl-type formates
Assignee: Shell Development Co
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Filing: 1947-03-17
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Granted: 1951-03-13
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Expires: 1967-03-17
Abstract
No abstract record available.
Inventors
- 👤 Richard R Whetstone
- 👤 Theodore W Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:35
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PROCESS FOR PRODUCING A POLYMER OF A BETA GAMMA - MONOOLEFINIC MONOHYDRIC ALCOHOL WHICH COMPRISES REACTING A POLYMER OF AN ESTER OF (1) FORMIC ACID AND (2) A BETA,GAMMA-MONOOLEFINIC MONOHYDRIC ALCOHOL CONTAINING FROM 3 TO 18 CARBON ATOMS WITH WATER AND A MONOHYDRIC ALCOHOL OF THE GROUP CONSISTING OF BETA,GA,,AMONOOLEFINIC MONOHYDRIC ALCOHOLS CONTAINING FROM 3 TO 18 CARBON ATOMS AND SATURATED MONOHYDRIC ALCOHOLS CONTAINING FROM 1 TO 6 CARBON ATOMS IN THE PRESENCE OF .01% TO 5% BY WEIGHT OF FORMIC ACID BASED ON THE WEIGHT OF THE POLYMER OF THE FORMIC ACID ESTER, AND REMOVING THE MONOMERIC ESTER OF FORMIC ACIF AND THE MONOHYDRIC ALCOHOL FROM THE REACTION SUBSTANTIALLY AS FAST AS IT IS FORMED THEREIN, THE MONOHYDRIC ALCOHOL AND WATER BEING ADDED TO THE INITIAL REACTION MIXTURE IN SUCH QUANTITIES THAT THERE WILL BE AT LEAST IN EXCESS OF 1 MOLE OF ALCOHOL AND AT LEAST 2 MOLES OF WATER FOR EVERY FORMATE GROUP PRESENT IN POLYMER OF THE FORMIC ACID ESTER.
Claim 2
Dependent Claim
165 words
A PROCESS FOR PRODUCING A POLYMER OF A BETA GAMMA - MONOOLEFINIC MONOHYDRIC ALCOHOL WHICH COMPRISES REACTING A POLYMER OF AN ESTER OF (1) FORMIC ACID AND (2) A BETA,GAMMA-MONOOLEFINIC MONOHYDRIC ALCOHOL CONTAINING FROM 3 TO 18 CARBON ATOMS WITH WATER AND A MONOHYDRIC ALCOHOL OF THE GROUP CONSISTING OF BETA,GA,,AMONOOLEFINIC MONOHYDRIC ALCOHOLS CONTAINING FROM 3 TO 18 CARBON ATOMS AND SATURATED MONOHYDRIC ALCOHOLS CONTAINING FROM 1 TO 6 CARBON ATOMS IN THE PRESENCE OF .01% TO 5% BY WEIGHT OF FORMIC ACID BASED ON THE WEIGHT OF THE POLYMER OF THE FORMIC ACID ESTER, AND REMOVING THE MONOMERIC ESTER OF FORMIC ACIF AND THE MONOHYDRIC ALCOHOL FROM THE REACTION SUBSTANTIALLY AS FAST AS IT IS FORMED THEREIN, THE MONOHYDRIC ALCOHOL AND WATER BEING ADDED TO THE INITIAL REACTION MIXTURE IN SUCH QUANTITIES THAT THERE WILL BE AT LEAST IN EXCESS OF 1 MOLE OF ALCOHOL AND AT LEAST 2 MOLES OF WATER FOR EVERY FORMATE GROUP PRESENT IN POLYMER OF THE FORMIC ACID 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) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |