US3133896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxymethylene polymers stabilized with cycloaliphatic amines and salts thereof
Assignee: Celanese Corp
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Filing: 1960-01-11
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Granted: 1964-05-19
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Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Dolce
- 👤 Frank M Berardinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:10
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/40; C08; C08K; C08K5/00; C08K5/16; C08K5/17; Y; Y02; Y02E; Y02E50/00; Y02E50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A TABILIZED POLYMER COMPOSITION COMPRISING A MOLDABLE OXYMETHYLENE POLYMER HAVING SUCCESSIVELY RECURRING OXYMETHYLENE GROUPS AND A STABILIZING AMOUNT OF CYCLOALIPHATIC AMINE COMPOUND OF THE GROUP CONSISTING OF AMINES HAVING THE FORMULA R1-N(-R2)-R3 WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF MONOCYCLIC CYCLOALKYL AND DECAHYDRONAPHTHYL RADICALS, THE RING OF SAID MONOCYCLIC CYCLOALKYL RADICALS CONTAINING UP TO 7 CARBON ATOMS; AND R2 AND R3 ARE EACH SELECTED FROM THE GROUP CONSISTING OF MONOCYCLIC CYCLOALKYL, DECAHYDRONAPHTHYL, LOWER ALIPHATIC RADICALS AND HYDROGEN, THE RING OF SAID MONOCYCLIC CYCLOALKYL RADICALS CONTAINING UP TO 7 CARBON ATOMS; AND SALTS OF THE AFOREMENTIONED AMINES WITH CARBOXYLIC ACIDS.
Claim 2
Dependent Claim
101 words
A TABILIZED POLYMER COMPOSITION COMPRISING A MOLDABLE OXYMETHYLENE POLYMER HAVING SUCCESSIVELY RECURRING OXYMETHYLENE GROUPS AND A STABILIZING AMOUNT OF CYCLOALIPHATIC AMINE COMPOUND OF THE GROUP CONSISTING OF AMINES HAVING THE FORMULA R1-N(-R2)-R3 WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF MONOCYCLIC CYCLOALKYL AND DECAHYDRONAPHTHYL RADICALS, THE RING OF SAID MONOCYCLIC CYCLOALKYL RADICALS CONTAINING UP TO 7 CARBON ATOMS; AND R2 AND R3 ARE EACH SELECTED FROM THE GROUP CONSISTING OF MONOCYCLIC CYCLOALKYL, DECAHYDRONAPHTHYL, LOWER ALIPHATIC RADICALS AND HYDROGEN, THE RING OF SAID MONOCYCLIC CYCLOALKYL RADICALS CONTAINING UP TO 7 CARBON ATOMS; AND SALTS OF THE AFOREMENTIONED AMINES WITH CARBOXYLIC ACIDS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |