US3741936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding compositions based on saturated polyesters
Assignee: Hoechst AG
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Filing: 1972-01-06
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Granted: 1973-06-26
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Expires: 1992-01-06
Abstract
Abstract THE PRESENT INVENTION PROVIDES A MOLDING COMPOSITION WHICH COMPRISES A LINEAR SATURATED POLYESTER, AN INORGANIC SOLID MATERIAL HAVING A PARTICLE SIZE OF LESS THAN 5 MICRONS AND AN ALKALI METAL PARAFFIN SULFONATE OR AN ALKALI METAL OLEFIN SULFONATE CONTAINING 8 TO 30 CARBON ATOMS, WHICH MOLDINGG COMPOSITION CAN BE WORKED UP IN THE THERMOPLASTIC RANGE AND FROM WHICH MOLDED ARTICLES ARE OBTAINED WHICH CAN VERY EASILY BE REMOVED FROM THE MOLD AND WHICH HAVE A VERY GOOD QUALITY OF THE SURFACE.
Inventors
- 👤 W Herwig
- 👤 R Uebe
- 👤 G Freund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42; C08K3/00; C08K3/01; C08K3/013
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |