Patent US3296232A successfully refreshed from Google Patents.
US3296232A
Expired / Lapsed
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Copolymers of 1-butene and 1-hexene
Assignee: Phillips Petroleum Co
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Filing: 1963-03-29
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Granted: 1967-01-03
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Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 James W Cleary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:55
CPC Classifications
C; C08; C08F; C08F210/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COPOLYMER FORMED BY CONTACTING UNDER POLYMERIZATION CONDITIONS A MONOMERIC MIXTURE OF 93 TO 99 PARTS BY WEIGHT OF 1-BUTENE AND 1 TO 7 PARTS OF 1-HEXENE WITH AN ORGANO ALUMINUM-REDUCED TITANIUM CHLORIDE CATALYST, SAID COPOLYMER HAVING A FLEXURAL MODULUS OF AT LEAST 15,000 P.S.I. AND A TENSIL STRENGTH OF AT LEAST 3000 P.S.I. AND BEING AT LEAST 70 PERCENT INSOLUBLE IN NORMAL HEXANE AT ROOM TEMPERATURE.
Claim 2
Dependent Claim
67 words
A COPOLYMER FORMED BY CONTACTING UNDER POLYMERIZATION CONDITIONS A MONOMERIC MIXTURE OF 93 TO 99 PARTS BY WEIGHT OF 1-BUTENE AND 1 TO 7 PARTS OF 1-HEXENE WITH AN ORGANO ALUMINUM-REDUCED TITANIUM CHLORIDE CATALYST, SAID COPOLYMER HAVING A FLEXURAL MODULUS OF AT LEAST 15,000 P.S.I. AND A TENSIL STRENGTH OF AT LEAST 3000 P.S.I. AND BEING AT LEAST 70 PERCENT INSOLUBLE IN NORMAL HEXANE AT ROOM TEMPERATURE.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |