US2709162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of allyl esters
Assignee: JBS USA LLC
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Filing: 1951-11-26
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Granted: 1955-05-24
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Expires: 1971-11-26
Abstract
No abstract record available.
Inventors
- 👤 Stewart B Luce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:00
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A METHOD FOR THE POLYMERIZATION OF AN ALLYL ESTER OF A CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING ALLYL CITRACONATE, DIALLY ITACONATE, ALLYL SORBATE, AND MIXTURES THEROF, WHICH CONSISTS OF HEATING SAID ESTER IN THE LIQUID PHASE IN THE PRESENCE OF A COPPER-CONTAINING COMPOUND AS A SOLE POLYMERIZATION ACCELERATION CATALYST AT A TEMPERATURE BETWEEN 140* C. AND 205* C. TO FORM A SAID POLYMER.
Claim 2
Independent Claim
64 words
A METHOD FOR THE POLYMERIZATION OF AN ALLYL ESTER OF A CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING ALLYL CITRACONATE, DIALLY ITACONATE, ALLYL SORBATE, AND MIXTURES THEROF, WHICH CONSISTS OF HEATING SAID ESTER IN THE LIQUID PHASE IN THE PRESENCE OF A COPPER-CONTAINING COMPOUND AS A SOLE POLYMERIZATION ACCELERATION CATALYST AT A TEMPERATURE BETWEEN 140* C. AND 205* C. TO FORM A SAID POLYMER.
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) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |