US3126358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polypropylene
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:38
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/02; C; C08; C08K; C08K5/00; C08K5/02; H01B3/00; H01B3/002; H01B3/006; H01B3/18; H01B3/20; H01B3/24; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD FOR IMPROVING THE BREAKDOWN STRENGTH AND CORONA RESISTIVITY OF A SOLID OLEFIN POLYMER, TAKEN FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, CHARACTERIZED IN THAT THERE IS MIXED WITH THE POLYMER 0.5 TO 20% BY WEIGHT THEREOF OF A PERHALOGENIZED HYDROCARBON COMPOUND, THE COMPOUND HAVING A MELTING POINT BELOW 20*C., A BOILING POINT ABOVE 150*C., AND A MOLECULAR WEIGHT SMALLER THAN 1,000, THE HALOGEN OF SAID COMPOUND BEING TAKEN FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE, THE COMPOUND HAVING AT LEAST THREE CARBON ATOMS, SAID MIXING BEING CARRIED OUT BY MILLING AT A TEMPERATURE ABOVE THE SOFTENING POINT OF THE POLYMER, THE MIXTURE BENG SOLID AT 20*C.
Claim 2
Independent Claim
110 words
A METHOD FOR IMPROVING THE BREAKDOWN STRENGTH AND CORONA RESISTIVITY OF A SOLID OLEFIN POLYMER, TAKEN FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, CHARACTERIZED IN THAT THERE IS MIXED WITH THE POLYMER 0.5 TO 20% BY WEIGHT THEREOF OF A PERHALOGENIZED HYDROCARBON COMPOUND, THE COMPOUND HAVING A MELTING POINT BELOW 20*C., A BOILING POINT ABOVE 150*C., AND A MOLECULAR WEIGHT SMALLER THAN 1,000, THE HALOGEN OF SAID COMPOUND BEING TAKEN FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE, THE COMPOUND HAVING AT LEAST THREE CARBON ATOMS, SAID MIXING BEING CARRIED OUT BY MILLING AT A TEMPERATURE ABOVE THE SOFTENING POINT OF THE POLYMER, THE MIXTURE BENG SOLID AT 20*C.
References Cited (Backward Citations)
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Cited
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Cited
US2766136A
Cited
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Cited
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Cited
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Cited
US2967164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |