US3218276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzimidazole stabilized polyolefin compositions
Assignee: Monsanto Co
•
Filing: 1962-06-18
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Granted: 1965-11-16
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Ringwald
- 👤 Cilton W Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:18
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445; C08K5/3447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A NEW FIBER-FORMING COMPOSITION OF MATTER COMPRISING POLYPROPYLENE, FROM ABOUT 0.5 PERCENT TO ABOUT 2.0 PERCENT, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF A HEAT STABILIZER COMPRISING ABOUT 40 PERCENT OF DILARURYL THIODIPROPIONATE, ABOUT 30 PERCENT OF 4,4''-BUTYLIDENE BIS (6-TERT-BUTYL-M-CRESOL), ABOUT 15 PERCENT OF ZINC STEARATE, AND ABOUT 15 PERCENT OF TRIS (NONYLPHENYL) PHOSPHITE, EACH PERCENT BEING BASED ON THE TOTAL WEIGHT OF THE STABILIER, AND FROM ABOUT 0.2 PERCENT TO ABOUT 2.0 PERCENT, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF N-(N-PROPYL) BENZIMIDAZOLE.
Claim 2
Dependent Claim
87 words
A NEW FIBER-FORMING COMPOSITION OF MATTER COMPRISING POLYPROPYLENE, FROM ABOUT 0.5 PERCENT TO ABOUT 2.0 PERCENT, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF A HEAT STABILIZER COMPRISING ABOUT 40 PERCENT OF DILARURYL THIODIPROPIONATE, ABOUT 30 PERCENT OF 4,4''-BUTYLIDENE BIS (6-TERT-BUTYL-M-CRESOL), ABOUT 15 PERCENT OF ZINC STEARATE, AND ABOUT 15 PERCENT OF TRIS (NONYLPHENYL) PHOSPHITE, EACH PERCENT BEING BASED ON THE TOTAL WEIGHT OF THE STABILIER, AND FROM ABOUT 0.2 PERCENT TO ABOUT 2.0 PERCENT, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF N-(N-PROPYL) BENZIMIDAZOLE.
References Cited (Backward Citations)
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Cited
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |