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US3631124A
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Thermoplastic moulding compositions on the basis of polyacetals
Assignee: Hoechst AG
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Filing: 1968-09-26
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Granted: 1971-12-28
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Expires: 1988-09-26
Abstract
Abstract THE INVENTION PROVIDES THERMOPLASTIC MOULDING COMPOSITIONS ON THE BASIS OF POLYACETALS HAVING AN IMPROVED IMPACT STRENGTH WHICH ARE OBTAINED BY MIXING A POLYOXYMETHYLENE, FOR EXAMPLE A HOMO- OR COPOLYMER OF FORMALDEHYDE OR TRIOXAN, WITH A POLYETHER, FOR EXAMPLE POLYETHYLENE OXIDE.
Inventors
- 👤 Karlheinz Burg
- 👤 Klemens Gutweiler
- 👤 Harald Cherdron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:19
CPC Classifications
C; C08; C08L; C08L59/00; C08L59/02; C08L71/00
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |