Patent US4455257A successfully refreshed from Google Patents.
Patent US3100195A successfully refreshed from Google Patents.
US3100195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulk polymerization of styrene in the presence of a saturated fatty acid and a mineral oil
Assignee: Solar Chemical SA
•
Filing: 1959-11-25
•
Granted: 1963-08-06
•
Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 Zomlefer Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:01
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE BULK POLYMERIZATION OF MONOMERS ETHYLENIC MONOMER CO-POLYMERIZABLE WITH STYRENE, COMPRISING HEATING A MIXTURE OF 100 PARTS OF SAID MONOMERS, CATALYST, APPROXIMATELY 0.1 TO 4.0 PARTS OF A SATURATED CONSISTING OF 85 TO 100% OF STYRENE AND 0 TO 15% OF AN FATTY ACID HAVING 12 TO 20 CARBON ATOMS AND APPROXIMATELY 3.0 TO 10 PARTS OF A MINERAL OIL OF 40 TO 250 CENTIPOISES IN VISCOSITY.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE BULK POLYMERIZATION OF MONOMERS ETHYLENIC MONOMER CO-POLYMERIZABLE WITH STYRENE, COMPRISING HEATING A MIXTURE OF 100 PARTS OF SAID MONOMERS, CATALYST, APPROXIMATELY 0.1 TO 4.0 PARTS OF A SATURATED CONSISTING OF 85 TO 100% OF STYRENE AND 0 TO 15% OF AN FATTY ACID HAVING 12 TO 20 CARBON ATOMS AND APPROXIMATELY 3.0 TO 10 PARTS OF A MINERAL OIL OF 40 TO 250 CENTIPOISES IN VISCOSITY.
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |