US4400429A
Expired / Lapsed
US
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Tree retardant additive composition for polymeric insulation
Assignee: Millennium Petrochemicals Inc
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Filing: 1982-06-30
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Granted: 1983-08-23
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Expires: 2002-06-30
Abstract
Abstract An unfilled polymeric composition having improved electrical treeing and water treeing properties comprising a polymeric component and effective amounts of a hydrocarboxyalkoxy silane and a fatty acid. These compositions are particularly useful as insulation for high voltage transmission and distribution cables.
Inventors
- 👤 Anthony Barlow
- 👤 Melvin F. Maringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:20
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/54; C08K5/541; C08K5/5415; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2962
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
222 words
A polymeric composition having enhanced resistance to water treeing and electrical treeing consisting essentially of a homogeneous mixture of a solid synthetic organic polymeric thermoplastic resin and a water treeing and an electrical treeing inhibitor consisting essentially of (1) a hydrocarboxyalkoxy silane having the formula: ##STR6## wherein R 1 , R 2 and R 3 are the same or different and are (OC n H 2n ) y OR 4 , C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 2 to C 8 alkenyl, C 6 to C 18 aryl or substituted aryl or C 6 to C 18 aryloxy or substituted aryloxy, R 4 is C 1 to C 8 alkyl or C 6 to C 18 aryl or substituted aryl, and n is 1 to 8 and y is 1 to 5, and (2) an unsubstituted or an aryl-substituted C 10 to C 20 fatty acid, said aryl substituent being a C 6 to C 18 aryl or substituted aryl, said silane and fatty acid each being provided in an amount which when combined with the other provides a combined amount which is effective to inhibit water treeing and electrical treeing in said polymeric composition and which does not adversely affect the electrical insulating properties of said polymeric composition.
Claim 2
Dependent Claim
222 words
A polymeric composition having enhanced resistance to water treeing and electrical treeing consisting essentially of a homogeneous mixture of a solid synthetic organic polymeric thermoplastic resin and a water treeing and an electrical treeing inhibitor consisting essentially of (1) a hydrocarboxyalkoxy silane having the formula: ##STR6## wherein R 1 , R 2 and R 3 are the same or different and are (OC n H 2n ) y OR 4 , C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 2 to C 8 alkenyl, C 6 to C 18 aryl or substituted aryl or C 6 to C 18 aryloxy or substituted aryloxy, R 4 is C 1 to C 8 alkyl or C 6 to C 18 aryl or substituted aryl, and n is 1 to 8 and y is 1 to 5, and (2) an unsubstituted or an aryl-substituted C 10 to C 20 fatty acid, said aryl substituent being a C 6 to C 18 aryl or substituted aryl, said silane and fatty acid each being provided in an amount which when combined with the other provides a combined amount which is effective to inhibit water treeing and electrical treeing in said polymeric composition and which does not adversely affect the electrical insulating properties of said polymeric composition.
Claim 3
Dependent Claim
11 words
A composition according to claim 1 wherein the polymer is polyethylene.
Claim 4
Dependent Claim
39 words
A composition according to claim 1 wherein R 1 is vinyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, and n is 2 and y is 1.
Claim 5
Dependent Claim
39 words
A composition according to claim 1 wherein R 1 is methyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, and n is 2 and y is 1.
Claim 6
Dependent Claim
38 words
A composition according to claim 1 wherein R 1 , R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, and n is 2 and y is 1.
Claim 7
Dependent Claim
39 words
A composition according to claim 1 wherein R 1 is vinyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, and n is 2 and y is 1.
Claim 8
Dependent Claim
39 words
A composition according to claim 1 wherein R 1 is methyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, and n is 2 and y is 1.
Claim 9
Dependent Claim
37 words
A composition according to claim 1 wherein R 1 , R 2 and R 3 are (OC n H 2n ) y OR 4 , R 4 is methyl, and n is 2 and y is 1.
Claim 10
Dependent Claim
19 words
A composition according to claims 3, 4, 5, 6, 7 or 8 wherein the fatty acid is stearic acid.
Claim 11
Dependent Claim
20 words
A composition according to claims 3, 4, 5, 6, 7 or 8 wherein the fatty acid is phenyl stearic acid.
Claim 12
Dependent Claim
20 words
A composition according to claims 3, 4, 5, 6, 7 or 8 wherein the fatty acid is tolyl stearic acid.
Claim 13
Dependent Claim
20 words
A composition in accordance with claims 1, 2, 3, 4, 5, 6, 7 or 8 which is curable or cured.
Claim 14
Dependent Claim
12 words
A composition in accordance with claim 9 which is curable or cured.
Claim 15
Dependent Claim
12 words
A composition in accordance with claim 10 which is curable or cured.
Claim 16
Dependent Claim
12 words
A composition in accordance with claim 11 which is curable or cured.
Claim 17
Dependent Claim
18 words
An electrical conductor coated with the composition of claims 1, 2, 3, 4, 5, 6, 7 or 8.
Claim 18
Dependent Claim
10 words
An electrical conductor coated with the composition of claim 13.
Claim 19
Dependent Claim
10 words
An electrical conductor coated with the composition of claim 14.
Claim 20
Dependent Claim
10 words
An electrical conductor coated with the composition of claim 15.
Claim 21
Independent Claim
263 words
A method of stabilizing polymeric insulated electrical conductor against water treeing and electrical treeing which comprises: coating an electrical conductor with an insulating effective amount of polymeric insulating composition, said composition consisting essentially of a homogeneous mixture of a solid synthetic organic polymeric thermoplastic resin and a water treeing and electrical treeing inhibitor consisting essentially of (1) a hydrocarboxy silane having the formula: ##STR7## wherein R 1 , R 2 and R 3 are the same or different and are (OC n H 2n ) y OR 4 , C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 2 to C 8 alkenyl, C 6 to C 18 aryl or substituted aryl or C 6 to C 18 aryloxy or substituted aryloxy, R 4 is C 1 to C 8 alkyl or C 6 to C 18 aryl or substituted, aryl, n is 1 to 8 and y is 1 to 5, and (2) an unsubstituted or an aryl-substituted C 10 -C 20 fatty acid, said aryl substituent being a C 6 to C 18 aryl or substituted aryl, said silane and said fatty acid each being provided in an amount which when combined with the other provides a combined amount which is effective to inhibit water treeing and electrical treeing in said polymeric composition and which does not adversely affect the insulating properties of said polymeric composition, whereby said insulated electrical conductor exhibits water treeing and electrical treeing inhibition when exposed to an environment subject to water treeing and electrical treeing conditions.
Claim 22
Independent Claim
263 words
A method of stabilizing polymeric insulated electrical conductor against water treeing and electrical treeing which comprises: coating an electrical conductor with an insulating effective amount of polymeric insulating composition, said composition consisting essentially of a homogeneous mixture of a solid synthetic organic polymeric thermoplastic resin and a water treeing and electrical treeing inhibitor consisting essentially of (1) a hydrocarboxy silane having the formula: ##STR7## wherein R 1 , R 2 and R 3 are the same or different and are (OC n H 2n ) y OR 4 , C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 2 to C 8 alkenyl, C 6 to C 18 aryl or substituted aryl or C 6 to C 18 aryloxy or substituted aryloxy, R 4 is C 1 to C 8 alkyl or C 6 to C 18 aryl or substituted, aryl, n is 1 to 8 and y is 1 to 5, and (2) an unsubstituted or an aryl-substituted C 10 -C 20 fatty acid, said aryl substituent being a C 6 to C 18 aryl or substituted aryl, said silane and said fatty acid each being provided in an amount which when combined with the other provides a combined amount which is effective to inhibit water treeing and electrical treeing in said polymeric composition and which does not adversely affect the insulating properties of said polymeric composition, whereby said insulated electrical conductor exhibits water treeing and electrical treeing inhibition when exposed to an environment subject to water treeing and electrical treeing conditions.
Claim 23
Dependent Claim
11 words
A method according to claim 20 wherein the polymer is polyethylene.
Claim 24
Dependent Claim
39 words
A method according to claim 20 wherein R 1 is vinyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, and n is 2 and y is 1.
Claim 25
Dependent Claim
38 words
A method according to claim 20 wherein R 1 is methyl R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, n is 2 and y is 1.
Claim 26
Dependent Claim
37 words
A method according to claim 20 wherein R 1 , R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, n is 2 and y is 1.
Claim 27
Dependent Claim
38 words
A method according to claim 20 wherein R 1 is vinyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, n is 2 and y is 1.
Claim 28
Dependent Claim
38 words
A method according to claim 20 wherein R 1 is methyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, n is 2 and y is 1.
Claim 29
Dependent Claim
36 words
A method according to claim 20 wherein R 1 , R 2 and R 3 are (OC n H 2n ) y OR 4 , R 4 is methyl, n is 2 and y is 1.
Claim 30
Independent Claim
19 words
A method according to claims 22, 23, 24, 25, 26 or 27 wherein the fatty acid is stearic acid.
Claim 31
Independent Claim
20 words
A method according to claims 22, 23, 24, 25, 26 or 27 wherein the fatty acid is phenyl stearic acid.
Claim 32
Independent Claim
20 words
A method according to claims 22, 23, 24, 25, 26 or 27 wherein the fatty acid is tolyl stearic acid.
Claim 33
Independent Claim
22 words
A method according to claims 20, 21, 22, 23, 24, 25, 26 or 27 wherein the insulating composition is curable or cured.
Claim 34
Dependent Claim
14 words
A method according to claim 28 wherein the insulating composition is curable or cured.
Claim 35
Dependent Claim
14 words
A method according to claim 29 wherein the insulating composition is curable or cured.
Claim 36
Dependent Claim
14 words
A method according to claim 30 wherein the insulating composition is curable or cured.
Claim 37
Dependent Claim
202 words
A water tree and an electrical tree inhibitor composition for solid synthetic organic polymeric thermoplastic resin consisting essentially of: (a) a hydrocarboxyalkoxy silane having the formula: ##STR8## wherein R 1 , R 2 and R 3 are the same or different and are (OC n H 2n ) y OR 4 , C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 2 to C 8 alkenyl, C 6 to C 18 aryl or substituted aryl or C 6 to C 18 aryloxy or substituted aryloxy, R 4 is C 1 to C 8 alkyl or C 6 to C 18 aryl or substituted aryl, n is 1 to 8 and y is 1 to 5, and (b) an unsubstituted or an aryl substituted C 10 to C 20 fatty acid, said aryl substituent being a C 6 to C 18 aryl or substituted aryl, said saline and said fatty acid each being provided in an amount which when combined with the other provides a combined amount which is effective to inhibit water treeing and electrical treeing in polymeric compositions and which does not adversely affect the electrical insulating properties of polymeric compositions.
Claim 38
Dependent Claim
202 words
A water tree and an electrical tree inhibitor composition for solid synthetic organic polymeric thermoplastic resin consisting essentially of: (a) a hydrocarboxyalkoxy silane having the formula: ##STR8## wherein R 1 , R 2 and R 3 are the same or different and are (OC n H 2n ) y OR 4 , C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy, C 2 to C 8 alkenyl, C 6 to C 18 aryl or substituted aryl or C 6 to C 18 aryloxy or substituted aryloxy, R 4 is C 1 to C 8 alkyl or C 6 to C 18 aryl or substituted aryl, n is 1 to 8 and y is 1 to 5, and (b) an unsubstituted or an aryl substituted C 10 to C 20 fatty acid, said aryl substituent being a C 6 to C 18 aryl or substituted aryl, said saline and said fatty acid each being provided in an amount which when combined with the other provides a combined amount which is effective to inhibit water treeing and electrical treeing in polymeric compositions and which does not adversely affect the electrical insulating properties of polymeric compositions.
Claim 39
Dependent Claim
43 words
A water tree and electrical tree inhibitor composition according to claim 35 wherein R 1 is vinyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 R 4 is phenyl, n is 2 and y is 1.
Claim 40
Dependent Claim
45 words
A water tree and an electrical tree inhibitor composition according to claim 35 wherein R 1 is methyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, n is 2 and y is 1.
Claim 41
Dependent Claim
44 words
A water tree and an electrical tree inhibitor composition according to claim 35 wherein R 1 , R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is phenyl, n is 2 and y is 1.
Claim 42
Dependent Claim
45 words
A water tree and an electrical tree inhibitor composition according to claim 35 wherein R 1 is vinyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, n is 2 and y is 1.
Claim 43
Dependent Claim
45 words
A water tree and an electrical tree inhibitor composition according to claim 34 wherein R 1 is methyl, R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, n is 2 and y is 1.
Claim 44
Dependent Claim
44 words
A water tree and an electrial tree inhibitor composition according to claim 35 wherein R 1 , R 2 and R 3 are each (OC n H 2n ) y OR 4 , R 4 is methyl, n is 2 and y is 1.
Claim 45
Dependent Claim
26 words
A water tree and an electrical tree inhibitor composition according to claims 36, 37, 38, 39, 40 or 41 wherein the fatty acid is stearic acid.
Claim 46
Dependent Claim
27 words
A water tree and an electrical tree inhibitor composition according to claims 36, 37, 38, 39, 40 or 41 wherein the fatty acid is phenyl stearic acid.
Claim 47
Dependent Claim
27 words
A water tree and an electrical tree inhibitor composition according to claims 36, 37, 38, 39, 40 or 41 wherein the fatty acid is tolyl stearic acid.
References Cited (Backward Citations)
US3553348A
Cited
GB1248256A
Cited
GB1277378A
Cited
US4001128A
Cited
US4048129A
Cited
DE2737430C2
Cited
US4274996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |