US4144202A
Expired / Lapsed
US
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Dielectric compositions comprising ethylene polymer stabilized against water treeing with epoxy containing organo silanes
Assignee: Union Carbide Corp
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Filing: 1977-12-27
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Granted: 1979-03-13
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Expires: 1997-12-27
Abstract
Abstract {PG,1 A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one epoxy containing organo silane.
Inventors
- 👤 Arnold C. Ashcraft
- 👤 Robert J. Turbett
- 👤 Timothy R. Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:11
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5435
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one organo silane of the following formula: ##STR5## wherein A is an epoxy containing radical; Y is C 1 to C 8 alkylene; R 1 is C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 6 to C 18 aryloxy or substituted aryloxy; R 2 and R 3 are independently selected from C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 6 to C 18 aryl or substituted aryl; C 6 to C 18 aryloxy or substituted aryloxy; a is an integer of 0 or 1.
Claim 2
Dependent Claim
117 words
A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one organo silane of the following formula: ##STR5## wherein A is an epoxy containing radical; Y is C 1 to C 8 alkylene; R 1 is C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 6 to C 18 aryloxy or substituted aryloxy; R 2 and R 3 are independently selected from C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 6 to C 18 aryl or substituted aryl; C 6 to C 18 aryloxy or substituted aryloxy; a is an integer of 0 or 1.
Claim 3
Dependent Claim
135 words
A dielectric composition as in claim 1, wherein the organo silane is selected from the following formulae: ##STR6## wherein the R's are independently selected from hydrogen or C 1 to C 4 alkyl; Y is C 1 to C 8 alkylene; R 1 is C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 6 to C 18 aryloxy or substituted aryloxy; R 2 and R 3 are independently selected from C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 6 to C 18 aryl or substituted aryl, C 6 to C 18 aryloxy or substituted aryloxy; b is an integer of 1 to 2; c is an integer of 0 to 2, and d is a integer of 1 to 8.
Claim 4
Dependent Claim
14 words
A dielectric composition as in claim 2, wherein said water treeing inhibitor is ##STR7##
Claim 5
Dependent Claim
14 words
A dielectric composition as in claim 2, wherein said water treeing inhibitor is ##STR8##
Claim 6
Dependent Claim
14 words
A dielectric composition as in claim 1, wherein said ethylene polymer is a copolymer.
Claim 7
Dependent Claim
14 words
A dielectric composition as in claim 5, wherein said copolymer comprises ethylene-ethyl acrylate copolymer.
Claim 8
Dependent Claim
14 words
A dielectric composition as in claim 5, wherein said copolymer comprises an ethylene-α-olefin copolymer.
Claim 9
Dependent Claim
14 words
A dielectric composition as in claim 7, wherein said ethylene-α-olefin copolymer is ethylene-α-butene copolymer.
Claim 10
Dependent Claim
18 words
A dielectric composition as in claim 1, which comprises cross-linking effective amounts of at least one cross-linking agent.
Claim 11
Dependent Claim
18 words
A dielectric composition as in claim 9, in which said cross-linking agent comprises at least one organic peroxide.
Claim 12
Dependent Claim
15 words
A dielectric composition as in claim 10, in which said organic peroxide comprises dicumyl peroxide.
Claim 13
Dependent Claim
12 words
Electric wire or cable insulated with the dielectric composition of claim 1.
Claim 14
Dependent Claim
12 words
Electric wire or cable insulated with the dielectric composition of claim 9.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |