US3250753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of hydrocarbon monomers with a catalyst consisting of the reaction product of a dialkyl aluminum chloride and tris (p-chlorophenyl) ortho-vanadate
Assignee: EIDP Inc
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Filing: 1962-02-20
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Granted: 1966-05-10
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Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 Kottenhahn Alfred Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN THE PROCESS OF PREPARING A POLYMERIC MATERIAL BY POLYMERIZING IN AN INERT ORGANIC LIQUID A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) ALPHA MONOOLEFIN OF THE FORMULA R-CH=CH2, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND AN ALKYL RADICAL CONTAINING NO MORE THAN 16 CARBON ATOMS, (B) ETHYLENE WITH AT LEAST ONE ALPHA MONOOLEFIN OF THE FORMULA R''-CH=CH2, WHEREIN R'' IS AN ALKYL RADICAL CONTAINING NO MORE THAN 8 CARBON ATOMS, AND (C) THE COMPOUNDS OF (B) WITH AT LEAST ONE NON-CONJUGATED HYDROCARBON DIENE, SAID DIENE BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) AN ALIPHATIC DIENE HAVING THE FORMULA
Claim 2
Dependent Claim
107 words
IN THE PROCESS OF PREPARING A POLYMERIC MATERIAL BY POLYMERIZING IN AN INERT ORGANIC LIQUID A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) ALPHA MONOOLEFIN OF THE FORMULA R-CH=CH2, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND AN ALKYL RADICAL CONTAINING NO MORE THAN 16 CARBON ATOMS, (B) ETHYLENE WITH AT LEAST ONE ALPHA MONOOLEFIN OF THE FORMULA R''-CH=CH2, WHEREIN R'' IS AN ALKYL RADICAL CONTAINING NO MORE THAN 8 CARBON ATOMS, AND (C) THE COMPOUNDS OF (B) WITH AT LEAST ONE NON-CONJUGATED HYDROCARBON DIENE, SAID DIENE BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) AN ALIPHATIC DIENE HAVING THE FORMULA
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |