Patent US3205205A successfully refreshed from Google Patents.
US3205205A
Expired / Lapsed
US
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Copolymerization of olefins with a vocl3-air3-i2 catalyst
Assignee: Bridgestone Firestone Inc
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Filing: 1960-12-12
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Granted: 1965-09-07
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:59
CPC Classifications
C; C08; C08F; C08F210/00; F; F02; F02B; F02B3/00; F02B3/06; F02B47/00; Y; Y10; Y10S; Y10S526/00; Y10S526/903; Y10S526/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
PROCESS OF PRODUCING A HIGHLY RUBBERY COPOLYMER, FREE FROM BLOCK COPOLYMER AND CRYSTALLINE STRUCTURE, OF A PLURALITY OF ALPHA-MONOOLEFINS CONTAINING 2-6 CARBON ATOMS AND UP TO 10 MOL PERCENT OF A DOUBLE-BONDED INTRODUCING MONOMERE SELECTED FROM THE GROUP CONSISTING OF ACETYLENE AND THE CONJUGATED DIOLEFINS, SAID COPOLYMER CONTAINING NOT MORE THAN 85 MOL PERCENT OF ANY SINGLE MONOOLEFIN, SAID PROCESS COMPRISING CONTACTING THE MATERIALS TO BE COPOLYMERIZED WITH A CATALYST COMPRISING (A) THE REACTION PRODUCT OF (I) AN ALUMINUM COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
83 words
PROCESS OF PRODUCING A HIGHLY RUBBERY COPOLYMER, FREE FROM BLOCK COPOLYMER AND CRYSTALLINE STRUCTURE, OF A PLURALITY OF ALPHA-MONOOLEFINS CONTAINING 2-6 CARBON ATOMS AND UP TO 10 MOL PERCENT OF A DOUBLE-BONDED INTRODUCING MONOMERE SELECTED FROM THE GROUP CONSISTING OF ACETYLENE AND THE CONJUGATED DIOLEFINS, SAID COPOLYMER CONTAINING NOT MORE THAN 85 MOL PERCENT OF ANY SINGLE MONOOLEFIN, SAID PROCESS COMPRISING CONTACTING THE MATERIALS TO BE COPOLYMERIZED WITH A CATALYST COMPRISING (A) THE REACTION PRODUCT OF (I) AN ALUMINUM COMPOUND OF THE FORMULA
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |