US3814677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of polymerization
Assignee: Individual
•
Filing: 1972-09-26
•
Granted: 1974-06-04
•
Expires: 1992-09-26
Abstract
Abstract A METHOD OF POLYMERIZING A MIXTURE CONTANING FROM 3 TO 100% OF COMPOUNDS CONTANING TWO OR MORE ALLYL GROUPS WHICH METHOD COMPRISES EXPOSING SAID MIXTURE TO HIGH ENERGY IRRIDATION AT A TEMPERATURE IN THE RANGE FROM -80 TO +120*C., PREFERABLY FROM 10* TO 90*C. AND AT A PRESSURE IN THE RANGE FROM 1,000 P.S.I. TO 100,000 P.S.I. AND ISOLATING THE POLYMER SALT TO FORMED. THE POLYMER PRODUCT HAS IMPROVED ION EXCHANGE PROPERTIES.
Inventors
- 👤 H Battaerd
- 👤 J Clouston
- 👤 P Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:26
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/02; C08F226/04; Y; Y10; Y10S; Y10S522/00; Y10S522/911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |