US3557248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for weakening the hydrophobic behavior of alkene polymers
Assignee: Stamicarbon BV
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Filing: 1968-07-12
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Granted: 1971-01-19
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Expires: 1988-07-12
Abstract
Abstract A PROCESS FOR WEAKENING THE HYDROPHOBIC BEHAVIOR OF ALKENE POLYMERS IS DISCLOSED, WHEREIN A POLYMER OR A COPOLYMER OF AN ALKENE IS MIXED WITH (A) 0.05-2% BY WEIGHT OF A MONO- OR DIESTER OF A HEXAVALENT, PARTLY DEHYDRATED ALCOHOL AND AN ALIPHATIC CARBOXYLIC ACID HAVING 12-22 CARBON ATOMS, AND (B) 0.01-0.5% BY WEIGHT OF AN AMIDE OF AN ALIPHATIC CARBOXYLIC ACID HAVING 12-22 CARBON ATOMS.
Inventors
- 👤 Matnijs J M G Kisters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:51
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 0
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |