US3330799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically insulating vulcanizates containing oxidized carbon black
Assignee: JM Huber Corp
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Filing: 1966-01-24
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Granted: 1967-07-11
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Expires: 1986-01-24
Abstract
No abstract record available.
Inventors
- 👤 Voet Andries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; H01B3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN ELECTRICALLY RESISTANT VULCANIZATE WHICH INCLLUDES AN ELASTOMER, A PROCESSING AID, A VULCANIZING AGENT AND A FURNACE CARBON BLACK REINFORCING FILLER HAVING A MEAN PARTICLE DIAMETER OF BETWEEN 15 AND 45 MILLIMICRONS OXIDIZED TO AT LEAST 1 PERCENT INCREASE IN OXYGEN CONTENT WITH AN OXIDANT SELECTED FROM THE GROUP CONSISTING OF OZONE, INORGANIC OXYGEN-CONTAINING DERIVATIVES OF NITROGEN AND INORGANIC OXYGEN-CONTAINING DERIVATIVES OF CHLORINE, SAID VULCANIZATE HAVING AN ELECTRICAL VOLUME RESISTIVITY OF AT LEAST A THOUSAND FOLD OVER THE VULCANIZATE MADE WITH THE SAME BLACK BEFORE OXIDATION.
Claim 2
Dependent Claim
86 words
AN ELECTRICALLY RESISTANT VULCANIZATE WHICH INCLLUDES AN ELASTOMER, A PROCESSING AID, A VULCANIZING AGENT AND A FURNACE CARBON BLACK REINFORCING FILLER HAVING A MEAN PARTICLE DIAMETER OF BETWEEN 15 AND 45 MILLIMICRONS OXIDIZED TO AT LEAST 1 PERCENT INCREASE IN OXYGEN CONTENT WITH AN OXIDANT SELECTED FROM THE GROUP CONSISTING OF OZONE, INORGANIC OXYGEN-CONTAINING DERIVATIVES OF NITROGEN AND INORGANIC OXYGEN-CONTAINING DERIVATIVES OF CHLORINE, SAID VULCANIZATE HAVING AN ELECTRICAL VOLUME RESISTIVITY OF AT LEAST A THOUSAND FOLD OVER THE VULCANIZATE MADE WITH THE SAME BLACK BEFORE OXIDATION.
References Cited (Backward Citations)
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Cited
US2439442A
Cited
US2686107A
Cited
US2682448A
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US3178387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |