Patent US2997453A successfully refreshed from Google Patents.
US2997453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of ethylene polymers and a hydrogenated polybutadiene
Assignee: Phillips Petroleum Co
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Filing: 1958-10-02
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Granted: 1961-08-22
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Expires: 1978-10-02
Abstract
No abstract record available.
Inventors
- 👤 James N Short
- 👤 James E Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:26
CPC Classifications
C; C08; C08L; C08L9/00; C08L15/00; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08C; C08C19/00; C08C19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
228 words
A COMPOSITION OF MATTER COMPRISING A POLYMER OF ETHYLENE HAVING A DENSITY OF AT LEAST 0.94 AT 25*C. AND A CRYSTALLINITY OF AT LEAST 70 PERCENT AT 25*C. AND A HYDROGENATED POLYMER OF BUTADIENE, THE UNSATURATION OF SAID POLYMER OF BUTADIENE HAVING BEEN REDUCED TO A VALUE OF ABOUT ZERO TO 50 PERCENT OF THEORETICAL AND SAID POLYMER OF BUTADIENE CONTAINING AT LEAST 85 PERCENT 1,4ADDITION, THE REMAINDER OF THE POLYMER BEING FORMED BY 1,2-ADDITION OF THE BUTADIENE, AND HAVING BEEN PREPARED BY POLYMERIZING 1,3-BUTADIENE WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) A CATALYST COMPRISING A COMPOUND HAVING THE FORMULA RLI, WHEREIN R IS AN ALKYL RADICAL CONTAINING FROM 1 TO 10, INCLUSIVE, CARBON ATOMS, (2) A CATALYST COMPRISING (A) A COMPOUND HAVING THE FORMULA R''NM, WHEREIN R'' IS AN ALKYL RADICAL CONTAINING FROM 1 TO 12, INCLUSIVE, CARBON ATOMS, M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, THALLIUM, BERYLLIUM, MERCURY, AND ZINC, AND N IS AN INTEGER EQUAL TO THE VALENCE OF THE METAL M, AND (B) A HALLIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, AND VANADIUM, AND (3) A CATALYST COMPRISING (A) A COMPLEX HYDRIDE HAVING THE FORMULA M''M"H4, WHEREIN M'' IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND BORON, AND M" IS AN ALKALI METAL, AND (B) TITANIUM TETRAIODIDE.
Claim 2
Dependent Claim
228 words
A COMPOSITION OF MATTER COMPRISING A POLYMER OF ETHYLENE HAVING A DENSITY OF AT LEAST 0.94 AT 25*C. AND A CRYSTALLINITY OF AT LEAST 70 PERCENT AT 25*C. AND A HYDROGENATED POLYMER OF BUTADIENE, THE UNSATURATION OF SAID POLYMER OF BUTADIENE HAVING BEEN REDUCED TO A VALUE OF ABOUT ZERO TO 50 PERCENT OF THEORETICAL AND SAID POLYMER OF BUTADIENE CONTAINING AT LEAST 85 PERCENT 1,4ADDITION, THE REMAINDER OF THE POLYMER BEING FORMED BY 1,2-ADDITION OF THE BUTADIENE, AND HAVING BEEN PREPARED BY POLYMERIZING 1,3-BUTADIENE WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) A CATALYST COMPRISING A COMPOUND HAVING THE FORMULA RLI, WHEREIN R IS AN ALKYL RADICAL CONTAINING FROM 1 TO 10, INCLUSIVE, CARBON ATOMS, (2) A CATALYST COMPRISING (A) A COMPOUND HAVING THE FORMULA R''NM, WHEREIN R'' IS AN ALKYL RADICAL CONTAINING FROM 1 TO 12, INCLUSIVE, CARBON ATOMS, M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, THALLIUM, BERYLLIUM, MERCURY, AND ZINC, AND N IS AN INTEGER EQUAL TO THE VALENCE OF THE METAL M, AND (B) A HALLIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, AND VANADIUM, AND (3) A CATALYST COMPRISING (A) A COMPLEX HYDRIDE HAVING THE FORMULA M''M"H4, WHEREIN M'' IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND BORON, AND M" IS AN ALKALI METAL, AND (B) TITANIUM TETRAIODIDE.
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |