Patent US3260766A successfully refreshed from Google Patents.
US3260766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating olefin monomers
Assignee: Texas US Chemical Co
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Filing: 1963-05-20
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Granted: 1966-07-12
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Nudenberg Walter
- 👤 Edward A Delaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:25
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/10; C07C7/148; C07C7/14875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR PREPARING POLYMERIZATION GRADE OLEFIN MONOMERS WHICH COMPRISES CONTACTING AN OLEFIN-CONTAINING HYDROCARBON STREAM WITH AN ANHYDROUS SOLVENT SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBONS SUBSTITUTED WITH AT LEAST TWO HYDROPHILIC RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROXYL RADICALS, AMINO RADICALS AND MIXTURES THEREOF, ANHYDRIDES AND POLYAMINES OF SAID HYDROPHILIC SUBSTITUTED ALIPHATIC HYDROCARBONS, SAID ANHYDROUS SOLVENT CONTAINING A DISSOLVED CUPROUS SALT AND SEPARATING FROM SAID ANHYDROUS SOLVENT A RAFFINATE CONTAINING AN OLEFIN MONOMER OF SUBSTANTIALLY REDUCED MOISTURE, ACETYLENE AND CARBONYL CONTENT.
Claim 2
Dependent Claim
84 words
A PROCESS FOR PREPARING POLYMERIZATION GRADE OLEFIN MONOMERS WHICH COMPRISES CONTACTING AN OLEFIN-CONTAINING HYDROCARBON STREAM WITH AN ANHYDROUS SOLVENT SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBONS SUBSTITUTED WITH AT LEAST TWO HYDROPHILIC RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROXYL RADICALS, AMINO RADICALS AND MIXTURES THEREOF, ANHYDRIDES AND POLYAMINES OF SAID HYDROPHILIC SUBSTITUTED ALIPHATIC HYDROCARBONS, SAID ANHYDROUS SOLVENT CONTAINING A DISSOLVED CUPROUS SALT AND SEPARATING FROM SAID ANHYDROUS SOLVENT A RAFFINATE CONTAINING AN OLEFIN MONOMER OF SUBSTANTIALLY REDUCED MOISTURE, ACETYLENE AND CARBONYL CONTENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |