Patent US3562291A successfully refreshed from Google Patents.
US3562291A
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Instantaneous friction reducing additive for polyethylene,polypropylene and their co-polymers
Assignee: PETRO CHEMICALS COMPANY Inc A CORP OF TN
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Filing: 1968-07-24
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Granted: 1971-02-09
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Expires: 1988-07-24
Abstract
Abstract FATTY ACID AMIDES OF WHICH 70 TO 90 PERCENT BY WEIGHT IS ERUCAMIDE AND 10 TO 30 PERCENT IS LAUYLAMIDE, ARE ADDED TO POLYOLEFIN RESINS IN THE PROPORTION OF APPROXIMATELY 0.05% TO 0.20% THEREOF BY WEIGHT TO IMPART SUBSTANTIALLY INSTANTANEOUS SLIP OT FILMS AND THE LIKE EXTRUDED FROM MELTS OF THE RESIN.
Inventors
- 👤 Hans Harald Lutzmann
- 👤 Nicholas M Molnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:38
CPC Classifications
C; C08; C08K; C08K5/00; 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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |