US3249594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing a monomeric material in the presence of an insoluble salt of a fatty acid
Assignee: Goodrich Corp
•
Filing: 1961-12-26
•
Granted: 1966-05-03
•
Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Frank J Donat
- 👤 Edwin H Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:29
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; Y; Y10; Y10S; Y10S526/00; Y10S526/909; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD FOR PREPARING A UNIFORM PARTICLE SIZE POLYSTYRENE RESIN HAVING A PARTICLE DIAMETER WITHIN THE RANGE OF 0.1 TO 10 MICRONS COMPRISING POLYMERIZING A MONOMER MIXTURE OF 50% TO 100% BY WEIGHT OF STYRENE AND 0 TO 50% BY WEIGHT OF 1,3-BUTADIENE IN WATER IN THE PRESENCE OF FROM .05 TO 0.3 PART BY WEIGHT PER 100 PARTS OF SAID MIXTURE OF A FREE-RADICAL CATALYST AND AS THE SOLE EMULSIFIER FROM 0.1 TO 2.0 PARTS BY WEIGHT PER 100 PARTS OF SAID MIXTURE OF CADMIUM STEARATE WITH AGITATION IN THE SUBSTANTIAL ABSENCE OF OXYGEN AT A TEMPERATURE OF FROM ABOUT 30*C. TO 100*C.
Claim 2
Independent Claim
104 words
THE METHOD FOR PREPARING A UNIFORM PARTICLE SIZE POLYSTYRENE RESIN HAVING A PARTICLE DIAMETER WITHIN THE RANGE OF 0.1 TO 10 MICRONS COMPRISING POLYMERIZING A MONOMER MIXTURE OF 50% TO 100% BY WEIGHT OF STYRENE AND 0 TO 50% BY WEIGHT OF 1,3-BUTADIENE IN WATER IN THE PRESENCE OF FROM .05 TO 0.3 PART BY WEIGHT PER 100 PARTS OF SAID MIXTURE OF A FREE-RADICAL CATALYST AND AS THE SOLE EMULSIFIER FROM 0.1 TO 2.0 PARTS BY WEIGHT PER 100 PARTS OF SAID MIXTURE OF CADMIUM STEARATE WITH AGITATION IN THE SUBSTANTIAL ABSENCE OF OXYGEN AT A TEMPERATURE OF FROM ABOUT 30*C. TO 100*C.
References Cited (Backward Citations)
US2934529A
Cited
US2777836A
Cited
US2888410A
Cited
US2933467A
Cited
US2888422A
Cited
US3167533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |