Patent US2539706A successfully refreshed from Google Patents.
US2539706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer of dimethallyl ether and an alkyl acrylate
Assignee: Uniroyal Inc
•
Filing: 1946-04-19
•
Granted: 1951-01-30
•
Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Robert H Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:49
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD WHICH COMPRISES POLYMERIZING WITH HEAT IN THE PRESENCE OF A PEROXIDIC POLYMERIZATION CATALYST A MIXTURE OF MONOMERS CONTAINING AS THE SOLE POLYMERIZABLE COMPONENTS DIMETHALLYL ETHER AND MATERIAL FROM THE CLASS CONSISTING OF ESTERS OF ACRYLIC, METHACRYLIC AND ETHACRYLIC ACIDS AND IN WHICH THE ESTER RADICAL IS A SATURATED HYDROCARBON RADICAL HAVING FROM 1 TO 8 CARBON ATOMS, AT A TEMPERATURE IN THE RANGE FROM ABOUT 25* C. UP TO THE REFLUX TEMPERATURE OF THE MIXTURE, TO FORM A SOLUBLE UNSATURATED INTERPOLYMER OF SAID MONOMERS, IN WHICH THE MOLAR RATIO OF THE ETHER TO THE ESTER RANGES FROM 1:5 TO 4:1.
Claim 2
Independent Claim
102 words
A METHOD WHICH COMPRISES POLYMERIZING WITH HEAT IN THE PRESENCE OF A PEROXIDIC POLYMERIZATION CATALYST A MIXTURE OF MONOMERS CONTAINING AS THE SOLE POLYMERIZABLE COMPONENTS DIMETHALLYL ETHER AND MATERIAL FROM THE CLASS CONSISTING OF ESTERS OF ACRYLIC, METHACRYLIC AND ETHACRYLIC ACIDS AND IN WHICH THE ESTER RADICAL IS A SATURATED HYDROCARBON RADICAL HAVING FROM 1 TO 8 CARBON ATOMS, AT A TEMPERATURE IN THE RANGE FROM ABOUT 25* C. UP TO THE REFLUX TEMPERATURE OF THE MIXTURE, TO FORM A SOLUBLE UNSATURATED INTERPOLYMER OF SAID MONOMERS, IN WHICH THE MOLAR RATIO OF THE ETHER TO THE ESTER RANGES FROM 1:5 TO 4:1.
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) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |