US3060145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precipitation of atactic olefin polymer in the presence of carbon black
Assignee: Sunoco Inc
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Filing: 1959-07-01
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Granted: 1962-10-23
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Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Moscrip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:25
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J2323/00; C08J2323/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR THE PRECIPITATION OF AMORPHOUS POLYOLEFINS FROM HYDROCARBON SOLUTION WHICH COMPRISES TREATING A SOLUTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AMORPHOUS OLEFIN HOMOPOLYMERS AND COPOLYMERS IN A HYDROCARBON SOLVENT WITH AN ANTISOLVENT FOR THE POLYMER IN AN AMOUNT SUFFICIENT TO PRECIPITATE SUBSTANTIALLY ALL OF THE AMORPHOUS POLYOLEFIN FROM THE SOLUTION IN THE PRESENCE OF AT LEAST 10% BY WEIGHT, BASED ON THE WEIGHT OF THE POLYOLEFIN, OF CARBON BLACK, SAID ANTISOLVENT BEING SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS AND KETONES, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
89 words
A PROCESS FOR THE PRECIPITATION OF AMORPHOUS POLYOLEFINS FROM HYDROCARBON SOLUTION WHICH COMPRISES TREATING A SOLUTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AMORPHOUS OLEFIN HOMOPOLYMERS AND COPOLYMERS IN A HYDROCARBON SOLVENT WITH AN ANTISOLVENT FOR THE POLYMER IN AN AMOUNT SUFFICIENT TO PRECIPITATE SUBSTANTIALLY ALL OF THE AMORPHOUS POLYOLEFIN FROM THE SOLUTION IN THE PRESENCE OF AT LEAST 10% BY WEIGHT, BASED ON THE WEIGHT OF THE POLYOLEFIN, OF CARBON BLACK, SAID ANTISOLVENT BEING SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS AND KETONES, AND MIXTURES THEREOF.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |