US3671513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked polyolefin composition
Assignee: SubCom Cable Systems LLC
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Filing: 1970-04-30
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Granted: 1972-06-20
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Expires: 1990-04-30
Abstract
Abstract A composition of polyolefin material suitable for production of cross-linked polyolefin dielectric products having high voltage stability is disclosed. High voltage stability is imparted to the polyolefin composition by the inclusion of any of a number of known substituted aromatic compounds and resistance to sag during cross-linking operation is provided by the inclusion of a polychlorinated biphenyl in an amount up to about 10 parts by weight per 100 parts of polyolefin.
Inventors
- 👤 George H Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:06
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08K; C08K5/00; C08K5/02; C08K5/03; C08K5/16; C08K5/17; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C08K5/04; C08K5/14; C08L2207/00; C08L2207/06; C08L2207/066; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22; C08L57/00; C08L57/06; C08L57/08; C08L65/00; C08L65/02; C08L91/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
A cross-linked voltage stabilized polyolefin composition produced by heat curing a composition according to claim 1.
Claim 2
Dependent Claim
22 words
A method for producing a cross-linked voltage stabilized polyolefin composition which is produced by heat curing a composition according to claim 1.
Claim 3
Dependent Claim
27 words
A composition according to claim 1 in which the degree of chlorination of said polychlorinated biphenyl is in the range of 40 to 60 percent by weight.
References Cited (Backward Citations)
US3542684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |