US3010952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deashing polymers with organic cyanides
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-04-08
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Granted: 1961-11-28
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Expires: 1979-04-08
Abstract
No abstract record available.
Inventors
- 👤 John R Lovett
- 👤 Jr Joseph M Kelley
- 👤 Daniel D Perlmutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:11
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
METHOD FOR REMOVING HEAVY METAL CONSTITUENTS IN CATALYST RESIDUES FROM SOLID, POLYMERIZED ALPHA OLEFINS PREPARED WITH A HEAVY METAL CATALYST FORMED BY ADMIXING AN ALUMINUM ALKYL WITH A HALIDE OF THE GROUP CONSISTING OF TITANIUM AND VANADIUM WHICH COMPRISES CONTACTING THE POLYMERIZED PRODUCT CONTAINING HEAVY METAL CONSTITUENTS WITH A SMALL AMOUNT OF AN ORGANIC CYANIDE SELECTED FROM THE GROUP CONSISTING OF ACETONITRILE, BENZONITRILE, PHTHALONITRILE AND PHENYLACETONITRILE.
Claim 2
Dependent Claim
66 words
METHOD FOR REMOVING HEAVY METAL CONSTITUENTS IN CATALYST RESIDUES FROM SOLID, POLYMERIZED ALPHA OLEFINS PREPARED WITH A HEAVY METAL CATALYST FORMED BY ADMIXING AN ALUMINUM ALKYL WITH A HALIDE OF THE GROUP CONSISTING OF TITANIUM AND VANADIUM WHICH COMPRISES CONTACTING THE POLYMERIZED PRODUCT CONTAINING HEAVY METAL CONSTITUENTS WITH A SMALL AMOUNT OF AN ORGANIC CYANIDE SELECTED FROM THE GROUP CONSISTING OF ACETONITRILE, BENZONITRILE, PHTHALONITRILE AND PHENYLACETONITRILE.
References Cited (Backward Citations)
US2886561A
Cited
FR1180634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |