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US3240748A
Expired / Lapsed
US
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Polyoxymethylene stabilized by triallyl cyanurate
Assignee: Hoechst AG
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Filing: 1961-07-12
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Granted: 1966-03-15
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Heinz
- 👤 Roos Gunther
- 👤 Hermann Hans Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:26
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/005; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
IN A COMPOSITION OF MATTER COMPRISING A MACROMOLECULAR POLYACETAL HAVING A MAJOR PORTION OF RECURRING OXYMETHYLENE GROUPS AND A STABILIZER STABILIZING SAID COMPOSITION AGAINST HEAT AND OXYGEN, THE IMPROVEMENT WHEREIN SAID STABILIZER IS FROM 0.1 TO 10 PERCENT, BY WEIGHT OF SAID POLYACETAL, OF TRIALLYL CYANURATE.
Claim 2
Dependent Claim
46 words
IN A COMPOSITION OF MATTER COMPRISING A MACROMOLECULAR POLYACETAL HAVING A MAJOR PORTION OF RECURRING OXYMETHYLENE GROUPS AND A STABILIZER STABILIZING SAID COMPOSITION AGAINST HEAT AND OXYGEN, THE IMPROVEMENT WHEREIN SAID STABILIZER IS FROM 0.1 TO 10 PERCENT, BY WEIGHT OF SAID POLYACETAL, OF TRIALLYL CYANURATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |