US3100763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled suspension polymerization
Assignee: Cosden Petroleum Corp
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Filing: 1959-08-03
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Granted: 1963-08-13
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Paul D Meek
- 👤 Joseph R Snyder
- 👤 Grimes George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; Y; Y10; Y10S; Y10S526/00; Y10S526/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN THE SUSPENSION POLYMERIZATION OF STYRENE MONOMER CATALYZED WITH A PEROXY CATALYST BY AGITATION OF A SUSPENSION OF THE STYRENE CATALYZED MONOMER IN WATER TO FORRM AN AGITATION SUSPENSION OF SMALL LIQUID DROPLETS WHICH SOMETIMES TEND TO COALESCE INTO A LARGE PARIALLY POLYMERIZED MASS AT AN INTERMEDIATE STAGE OF THE SUSPENSION POLYMERIZATION, SAID TENDENCY TO COALESCE BEING INDICATED FURTHER BY AN ABNORMAL RISE IN PH OF THE SUSPENSION POLYMERIZATION SYSTEM, THE STEP OF ADJUSTING THE PH OF THE SUSPENSION SYSTEM TO A CONDITION APPROXIMATELY NORMAL FOR THIS SUSPENSION POLYMERIZATION SYSTEM WHEN COMPARED TO AN AVERAGE PH-TIME PROFILE CURVE HAVING THE
Claim 2
Dependent Claim
100 words
IN THE SUSPENSION POLYMERIZATION OF STYRENE MONOMER CATALYZED WITH A PEROXY CATALYST BY AGITATION OF A SUSPENSION OF THE STYRENE CATALYZED MONOMER IN WATER TO FORRM AN AGITATION SUSPENSION OF SMALL LIQUID DROPLETS WHICH SOMETIMES TEND TO COALESCE INTO A LARGE PARIALLY POLYMERIZED MASS AT AN INTERMEDIATE STAGE OF THE SUSPENSION POLYMERIZATION, SAID TENDENCY TO COALESCE BEING INDICATED FURTHER BY AN ABNORMAL RISE IN PH OF THE SUSPENSION POLYMERIZATION SYSTEM, THE STEP OF ADJUSTING THE PH OF THE SUSPENSION SYSTEM TO A CONDITION APPROXIMATELY NORMAL FOR THIS SUSPENSION POLYMERIZATION SYSTEM WHEN COMPARED TO AN AVERAGE PH-TIME PROFILE CURVE HAVING THE
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |