Patent US3022282A successfully refreshed from Google Patents.
US3022282A
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Polymerization catalyst for vinyl chloride
Assignee: Uniroyal Inc
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Filing: 1959-08-25
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Granted: 1962-02-20
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Expires: 1979-08-25
Abstract
No abstract record available.
Inventors
- 👤 Leonard F Marous
- 👤 Charles D Mccleary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:35
CPC Classifications
C; C08; C08F; C08F114/00; C08F114/02; C08F114/04; C08F114/06; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F4/00; C08F4/28; C08F4/32; Y; Y10; Y10S; Y10S260/00; Y10S260/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR PREPARING GRANULAR VINYL CHLORIDE POLYMERIZATION PRODUCTS COMPRISING (1) AGITATING IN A CLOSED REACTION VESSEL A SUSPENSION OF 100 PARTS BY WEIGHT OF VINYL CHLORIDE MONOMER IN FROM 100 TO 400 PARTS OF AN AQUEOUS MEDIUM CONAINING A SUSPENSION STABILIZER; (2) INTRODUCING FROM 0.005 TO 0.100 PARTS OF DIALKYL PEROXY DICARBONATE AS CATALYST AND, (3) HEATING THE SUSPENSION TO A TEMPERATURE OF FROM 100*F. TO 160*F. UNTIL POLYMERIZATION OF THE VINYL CHLORIDE MONOMER IS COMPLETE.
Claim 2
Dependent Claim
77 words
A PROCESS FOR PREPARING GRANULAR VINYL CHLORIDE POLYMERIZATION PRODUCTS COMPRISING (1) AGITATING IN A CLOSED REACTION VESSEL A SUSPENSION OF 100 PARTS BY WEIGHT OF VINYL CHLORIDE MONOMER IN FROM 100 TO 400 PARTS OF AN AQUEOUS MEDIUM CONAINING A SUSPENSION STABILIZER; (2) INTRODUCING FROM 0.005 TO 0.100 PARTS OF DIALKYL PEROXY DICARBONATE AS CATALYST AND, (3) HEATING THE SUSPENSION TO A TEMPERATURE OF FROM 100*F. TO 160*F. UNTIL POLYMERIZATION OF THE VINYL CHLORIDE MONOMER IS COMPLETE.
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) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |