US3674695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulating compositions based on olefin polymers
Assignee: BASF SE
•
Filing: 1970-05-11
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Granted: 1972-07-04
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Expires: 1990-05-11
Abstract
Abstract Electrical insulating materials based on olefin polymers and containing agents for increasing their electric strength. The electrical insulating materials according to the invention contain special azomethines as the agents for increasing electric strength. Insulations prepared from these materials do not fail even under prolonged influence of a high voltage.
Inventors
- 👤 Franz Wuerstlin
- 👤 Franz Feichtmayr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:22
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08K; C08K5/00; C08K5/16; C08K5/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A composition as claimed in claim 1 wherein the amount of said agent is 1 to 3 percent by weight, based on said composition.
Claim 2
Dependent Claim
15 words
A composition as claimed in claim 1, said polyethylene having a density of about 0.920.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |