US3065216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerization of monomeric monoolefins
Assignee: Asahi Kasei Corp
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Filing: 1960-05-27
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Granted: 1962-11-20
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Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 Tsunoda Yoshio
- 👤 Fujimoto Sumio
- 👤 Kobayashi Yuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:29
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A METHOD FOR THE POLYMERIZATIN OF MONOMERIC COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINS WITH TWO TO SIX CARBON ATOMS AND STYRENE, THE IMPROVEMENT OF POLYMERIZING A MONOMERIC COMPOUND OF THE AFORESAID GROUP IN THE PRESENCE OF AN INERT SOLVENT AND OF A CATALYST CONSISTING ESSENTAILLY OF (1) AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF TIN, LEAD, BISMUTH AND TELLURIUM; (2) MAGNESIUM; (3) MERCURY IN WHICH SAID METAL AND MAGNESIUM ARE AT LEAST PARTLY DISSOLVED; AND (4) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE TRICHLORIDES AND TETRACHLORIDES OF TITANIUM, ZIRCONIUM, VANADIUM AND CHROMIUM.
Claim 2
Dependent Claim
102 words
IN A METHOD FOR THE POLYMERIZATIN OF MONOMERIC COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINS WITH TWO TO SIX CARBON ATOMS AND STYRENE, THE IMPROVEMENT OF POLYMERIZING A MONOMERIC COMPOUND OF THE AFORESAID GROUP IN THE PRESENCE OF AN INERT SOLVENT AND OF A CATALYST CONSISTING ESSENTAILLY OF (1) AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF TIN, LEAD, BISMUTH AND TELLURIUM; (2) MAGNESIUM; (3) MERCURY IN WHICH SAID METAL AND MAGNESIUM ARE AT LEAST PARTLY DISSOLVED; AND (4) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE TRICHLORIDES AND TETRACHLORIDES OF TITANIUM, ZIRCONIUM, VANADIUM AND CHROMIUM.
References Cited (Backward Citations)
US2899418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |