Patent US3376412A successfully refreshed from Google Patents.
Patent US4263158A successfully refreshed from Google Patents.
US4263158A
Expired / Lapsed
US
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Dielectric compositions stabilized against water treeing with organo silane compounds containing the azomethine group and partial condensation products
Assignee: Union Carbide Corp
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Filing: 1979-09-18
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Granted: 1981-04-21
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Expires: 1999-09-18
Abstract
Abstract A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one organo silane of the following formula: <IMAGE> wherein R and R1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C1 to C8 alkyl, C1 to C8 alkoxy; or R and R1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R2 is C1 to C8 alkyl, C1 to C18 alkoxy, C6 to C18 aryl, C1 to C8 acyloxy, C6 to C18 substituted or unsubstituted aryloxy; R3 and R4 are independently selected from C1 to C18 alkoxy, C6 to C18 substituted or unsubstituted aryloxy or C1 to C8 acyloxy; Y is C1 to C8 alkylene, C6 to C18 substituted or unsubstituted arylene or -CH2CH2NH(CH2)3-. Partial condensation products of the silanes also have been found to inhibit water treeing in ethylene polymers.
Inventors
- 👤 Arnold C. Ashcraft
- 👤 Robert J. Turbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:39
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; C; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08K5/5465; H01B3/00; H01B3/18; H01B3/30; H01B3/308; H01B3/44; H01B3/441; H01B3/46
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
175 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 R and R 1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C 1 to C 8 alkyl, C 1 to C 8 alkoxy; or R and R 1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R 2 is C 1 to C 8 alkyl, C 1 to C 18 alkoxy, C 6 to C 18 aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 18 alkoxy, C 6 to C 18 substituted or unsubstituted aryloxy or C 1 to C 8 acyloxy; Y is C 1 to C 8 alkylene, C 6 to C 18 substituted or unsubstituted arylene or --CH 2 CH 2 NH(CH 2 ) 3 --
Claim 2
Dependent Claim
175 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 R and R 1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C 1 to C 8 alkyl, C 1 to C 8 alkoxy; or R and R 1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R 2 is C 1 to C 8 alkyl, C 1 to C 18 alkoxy, C 6 to C 18 aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 18 alkoxy, C 6 to C 18 substituted or unsubstituted aryloxy or C 1 to C 8 acyloxy; Y is C 1 to C 8 alkylene, C 6 to C 18 substituted or unsubstituted arylene or --CH 2 CH 2 NH(CH 2 ) 3 --
Claim 3
Dependent Claim
199 words
A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of partially condensed organo silane formed from at least one organo silane of the following formual: ##STR6## where R and R 1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C 1 to C 8 alkyl, C 1 to C 8 alkoxy; or R and R 1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R 2 is C 1 to C 8 alkyl, C 1 to C 18 alkoxy, C 6 to C 18 aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 18 alkoxy, C 6 to C 18 substituted or unsubstituted aryloxy or C 1 to C 8 acyloxy; Y is C 1 to C 8 alkylene, C 6 to C 18 substituted or unsubstituted arylene or --CH 2 CH 2 NH(CH 2 ) 3 --, wherein the partial condensation has taken place by forming the group ##STR7## within the partial condensed organo silane.
Claim 4
Dependent Claim
199 words
A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of partially condensed organo silane formed from at least one organo silane of the following formual: ##STR6## where R and R 1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C 1 to C 8 alkyl, C 1 to C 8 alkoxy; or R and R 1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R 2 is C 1 to C 8 alkyl, C 1 to C 18 alkoxy, C 6 to C 18 aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 18 alkoxy, C 6 to C 18 substituted or unsubstituted aryloxy or C 1 to C 8 acyloxy; Y is C 1 to C 8 alkylene, C 6 to C 18 substituted or unsubstituted arylene or --CH 2 CH 2 NH(CH 2 ) 3 --, wherein the partial condensation has taken place by forming the group ##STR7## within the partial condensed organo silane.
Claim 5
Dependent Claim
16 words
A dielectric composition as in claims 1 or 2, wherein said ethylene polymer is a copolymer.
Claim 6
Dependent Claim
15 words
A dielectric composition as in claim 3, in which said copolymer comprises ethylene-ethyl acrylate copolymer.
Claim 7
Dependent Claim
16 words
A dielectric composition as in claim 3, in which said copolymer comprises an ethylene -α-olefin copolymer.
Claim 8
Dependent Claim
17 words
A dielectric composition as in claim 5, in which said ethylene -α-olefin copolymer is ethylene -α-butene copolymer.
Claim 9
Dependent Claim
22 words
A dielectric composition as in claim 2 wherein the partially condensed organo silane is derived by reacting benzaldehyde and γ-amino propyl-triethoxy silane.
Claim 10
Dependent Claim
20 words
A dielectric composition as in claim 1 wherein the organo silane is derived by reacting γ-amino propyltriethoxy silane with benzaldehyde.
Claim 11
Dependent Claim
16 words
Electric wire or cable insulated with the dielectric composition of claims 1, 2, 7 or 8.
Claim 12
Dependent Claim
23 words
The composition of claim 7 containing about 0.8 weight percent of partially condensed organo silane and about 0.12 weight percent of thiodiethylene bis-(3,5-di-tert.-butyl-4-hydroxyl)hydrocinnamate.
Claim 13
Dependent Claim
16 words
A dielectric composition as in claims 1 or 2 wherein the said ethylene polymer is polyethylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |