Patent US3271337A successfully refreshed from Google Patents.
US3271337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxetane polymers stabilized with an epoxide and a sterically hindered phenolic compound
Assignee: Hercules Powder Co
•
Filing: 1963-05-28
•
Granted: 1966-09-06
•
Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Robert F Goddu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:31
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A POLYMERIC COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF A POLYMER OF 3,3-BIS(CHLOROMETHYL) OXETANE AND, AS A HEAT AND LIGHT STABILIZER THEREFOR, FROM ABOUT 0.1 TO 10$% BY WEIGHT OF THE POLYMER OF 2,4,6-TRIS(4HYDROXY-3,5,-DI-T-BUTYL BENZY;L) MESITYLENE, AND, AS A COSTABILIZER THEREFOR, FROM ABOUT 0.01 TO 4.0% BY WEIGHT OF THE POLYMER OF AND EPOXIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF EPOXIDIZED SOYBEN OIL, EPOXIDIZED COTTONSEED OIL, EPOXIDIZED LINSED OIL, THE REACTION PRODUCT OF EPICHLOROHYDRIN AND 2,2-BIS(4-HYDROXYPHENYL) PROPANE, SAID REACTION PRODUCT HAVING THE FORMULA
Claim 2
Dependent Claim
84 words
A POLYMERIC COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF A POLYMER OF 3,3-BIS(CHLOROMETHYL) OXETANE AND, AS A HEAT AND LIGHT STABILIZER THEREFOR, FROM ABOUT 0.1 TO 10$% BY WEIGHT OF THE POLYMER OF 2,4,6-TRIS(4HYDROXY-3,5,-DI-T-BUTYL BENZY;L) MESITYLENE, AND, AS A COSTABILIZER THEREFOR, FROM ABOUT 0.01 TO 4.0% BY WEIGHT OF THE POLYMER OF AND EPOXIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF EPOXIDIZED SOYBEN OIL, EPOXIDIZED COTTONSEED OIL, EPOXIDIZED LINSED OIL, THE REACTION PRODUCT OF EPICHLOROHYDRIN AND 2,2-BIS(4-HYDROXYPHENYL) PROPANE, SAID REACTION PRODUCT HAVING THE FORMULA
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |