US3205185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modification of polyolefins with polycarboxylic acids
Assignee: Millennium Petrochemicals Inc
•
Filing: 1961-04-25
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Granted: 1965-09-07
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Gerald A Lessells
- 👤 Louis J Rekers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A POLYOLEFIN PREPARED FROM AN ALPHA-MONOOLEFIN HAVING 2 TO 4 CARBON ATOMS IN THE MONOMER AND A SMALL AMOUNT OF AT LEAST ONE POLYCARBOXYLIC ACID EFFECTIVE TO IMPROVE THE MELT FRACTURE TENDENCY OF THE RESIN, SAID POLYCARBOXYLIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF ADIPIC ACID, AN ISOMERIC MIXTURE OF SATURATED C10 DICARBOXYULIC ACIDS, AND A TRIMERIZED MIXTURE OF UNSATURATED FATTY ACIDS DERIVED FROM SOYBEAN OIL.
Claim 2
Dependent Claim
67 words
A POLYOLEFIN PREPARED FROM AN ALPHA-MONOOLEFIN HAVING 2 TO 4 CARBON ATOMS IN THE MONOMER AND A SMALL AMOUNT OF AT LEAST ONE POLYCARBOXYLIC ACID EFFECTIVE TO IMPROVE THE MELT FRACTURE TENDENCY OF THE RESIN, SAID POLYCARBOXYLIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF ADIPIC ACID, AN ISOMERIC MIXTURE OF SATURATED C10 DICARBOXYULIC ACIDS, AND A TRIMERIZED MIXTURE OF UNSATURATED FATTY ACIDS DERIVED FROM SOYBEAN OIL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |