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US2656334A
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Catalytic polymerization process
Assignee: Beazer East Inc
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Filing: 1948-09-28
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Granted: 1953-10-20
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Expires: 1968-09-28
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:23
CPC Classifications
C; C08; C08F; C08F2/00; Y; Y10; Y10S; Y10S260/00; Y10S260/28; Y10S264/00; Y10S264/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE PROCESS OF POLYMERIZING A POLYMERIZABLE MASS COMPRISING A VINYL ARYL COMPOUND INTIMATELY MIXED WITH A CATALYST-COMBINATION, CONSISTING OF 2,2-DI(TERTIARY-BUTYLPEROXY)-BUTANE AND A BENZOYL PEROXIDE OF THE CLASS CONSISTING OF BENZOYL PEROXIDE AND ITS CHLORO, BROMO, FLUORO, ALKOXY ALKYL, BENZO AND CARBOPEROXY NUCLEAR-SUBSTITUTED DERIVATIVES BY HEATING THE POLYMERIZABLE MASS AT 25*-95* C. UNTIL AT LEAST ABOUT 6- PERCENT CONVERSION TO POLYMER HAS BEEN EFFECTED, AND SUBSEQUENTLY AT 100*-150* C. UNTIL SUBSTANTIALLY COMPLETE POLYMERIZATION HAS BEEN EFFECTED.
Claim 2
Dependent Claim
75 words
THE PROCESS OF POLYMERIZING A POLYMERIZABLE MASS COMPRISING A VINYL ARYL COMPOUND INTIMATELY MIXED WITH A CATALYST-COMBINATION, CONSISTING OF 2,2-DI(TERTIARY-BUTYLPEROXY)-BUTANE AND A BENZOYL PEROXIDE OF THE CLASS CONSISTING OF BENZOYL PEROXIDE AND ITS CHLORO, BROMO, FLUORO, ALKOXY ALKYL, BENZO AND CARBOPEROXY NUCLEAR-SUBSTITUTED DERIVATIVES BY HEATING THE POLYMERIZABLE MASS AT 25*-95* C. UNTIL AT LEAST ABOUT 6- PERCENT CONVERSION TO POLYMER HAS BEEN EFFECTED, AND SUBSEQUENTLY AT 100*-150* C. UNTIL SUBSTANTIALLY COMPLETE POLYMERIZATION HAS BEEN EFFECTED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |