Patent US3098057A successfully refreshed from Google Patents.
US3098057A
Expired / Lapsed
US
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Propylene polymer stabilized with a synergistic combination of a para-tertiaryalkyl phenol-formaldehyde resin and a dithiophosphate
Assignee: Union Carbide Corp
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Filing: 1960-01-05
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Granted: 1963-07-16
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Expires: 1980-01-05
Abstract
No abstract record available.
Inventors
- 👤 Bernard O Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398; C08L; C08L23/00; C08L23/02; C08L23/10; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROPYLENE RESIN COMPOSITION HAVING IMPROVED STABILITY TOWARD HEAT AND LIGHT INDUCED MOLECULAR DEGRADATION WHICH COMPRISES A NORMALLY SOLID PROPYLENE POLYMER, A STABILIZING AMOUNT OF AN A-STAGE PARA-TERTIARYALKYLPHENOL-FORMALDEHYDE RESIN IN WHICH THE ALKYL GROUP OF THE PARA-TERTIARYALKYLPHENOL CONTAINS FROM 4 TO 20 CARBON ATOMS, AND A SYNERGISTIC PHOSPHORUS-CONTAINING COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
53 words
A PROPYLENE RESIN COMPOSITION HAVING IMPROVED STABILITY TOWARD HEAT AND LIGHT INDUCED MOLECULAR DEGRADATION WHICH COMPRISES A NORMALLY SOLID PROPYLENE POLYMER, A STABILIZING AMOUNT OF AN A-STAGE PARA-TERTIARYALKYLPHENOL-FORMALDEHYDE RESIN IN WHICH THE ALKYL GROUP OF THE PARA-TERTIARYALKYLPHENOL CONTAINS FROM 4 TO 20 CARBON ATOMS, AND A SYNERGISTIC PHOSPHORUS-CONTAINING COMPOUND HAVING THE GENERAL FORMULA
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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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |