Patent US4420535A successfully refreshed from Google Patents.
US4420535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bondable polyamide
Assignee: SI Group Inc
•
Filing: 1981-10-14
•
Granted: 1983-12-13
•
Expires: 2001-10-14
Abstract
Abstract Self-bondable polyamides are prepared by reacting an aromatic diisocyanate or diamine with a mixture of terephthalic acid and an aliphatic dibasic acid having at least 6 carbon atoms. These self-bondable amides can also be used as topcoats for wires having basecoats of another polymer, e.g. a polyester, polyester-imide, or polyamideimide.
Inventors
- 👤 George A. Walrath
- 👤 Scott D. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:40
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/34; C08G69/00; C08G69/02; C08G69/26; C08G69/265; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 74
Claim 1
Independent Claim
81 words
A self bondable insulated wire comprising a conductor and an insulating layer of a copolyamide having the recurring unit ##STR4## where AL is the divalent hydrocarbon residue of an unsubstituted aliphatic dicarboxylic acid having at least 6 carbon atoms, R is tolylene, phenylene, ##STR5## where F is O, CH 2 , or SO 2 or is a cycloaliphatic hydrocarbon, Ar is p-phenylene, y is 35 to 80% of the recurring units and z is 65 to 20% of the recurring units.
Claim 2
Dependent Claim
81 words
A self bondable insulated wire comprising a conductor and an insulating layer of a copolyamide having the recurring unit ##STR4## where AL is the divalent hydrocarbon residue of an unsubstituted aliphatic dicarboxylic acid having at least 6 carbon atoms, R is tolylene, phenylene, ##STR5## where F is O, CH 2 , or SO 2 or is a cycloaliphatic hydrocarbon, Ar is p-phenylene, y is 35 to 80% of the recurring units and z is 65 to 20% of the recurring units.
Claim 3
Dependent Claim
13 words
A self-bondable insulated wire according to claim 1 where the conductor is copper.
Claim 4
Dependent Claim
17 words
A self-bondable insulated wire according to claim 1 where the copolyamide is directly on the bare wire.
Claim 5
Dependent Claim
18 words
A self-bondable insulated wire according to claim 1 where the copolyamide is a topcoat over an insulating basecoat.
Claim 6
Dependent Claim
18 words
A self-bondable insulated wire according to claim 4 wherein the basecoat is a polyester, polyester-imide, or an amide-imide.
Claim 7
Dependent Claim
17 words
An insulated wire according to claim 1 where y is 35 to 70% of the recurring units.
Claim 8
Dependent Claim
17 words
An insulated wire according to claim 6 where y is 40 to 70% of the recurring units.
Claim 9
Dependent Claim
17 words
An insulated wire according to claim 7 where y is 60 to 70% of the recurring units.
Claim 10
Dependent Claim
16 words
An insulated wire according to claim 8 where y is about 65% of the recurring units.
Claim 11
Dependent Claim
17 words
An insulated wire according to claim 1 where R is tolylene, 4,4'-methylene diphenylene or a mixture thereof.
Claim 12
Dependent Claim
23 words
An insulated wire according to claim 10 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 13
Dependent Claim
23 words
An insulated wire according to claim 8 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 14
Dependent Claim
20 words
An insulated wire according to claim 1 where AL is (CH 2 ) x where x is 4 to 34.
Claim 15
Dependent Claim
17 words
An insulated wire according to claim 13 where y is 35 to 70% of the recurring units.
Claim 16
Dependent Claim
17 words
An insulated wire according to claim 14 where y is 40 to 70% of the recurring units.
Claim 17
Dependent Claim
17 words
An insulated wire according to claim 15 where y is 60 to 70% of the recurring units.
Claim 18
Dependent Claim
16 words
An insulated wire according to claim 16 where y is about 65% of the recurring units.
Claim 19
Dependent Claim
17 words
An insulated wire according to claim 17 where R is tolylene, 4,4'-methylene diphenylene or a mixture thereof.
Claim 20
Dependent Claim
23 words
An insulated wire according to claim 18 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 21
Dependent Claim
23 words
An insulated wire according to claim 16 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 22
Dependent Claim
13 words
An insulated wire according to claim 13 where x is 6 to 12.
Claim 23
Dependent Claim
17 words
An insulated wire according to claim 21 where y is 35 to 70% of the recurring units.
Claim 24
Dependent Claim
17 words
An insulated wire according to claim 22 where y is 40 to 70% of the recurring units.
Claim 25
Dependent Claim
17 words
An insulated wire according to claim 23 where y is 60 to 70% of the recurring units.
Claim 26
Dependent Claim
16 words
An insulated wire according to claim 24 where y is about 65% of the recurring units.
Claim 27
Dependent Claim
17 words
An insulated wire according to claim 25 where R is tolylene, 4,4'-methylene diphenylene or a mixture thereof.
Claim 28
Dependent Claim
23 words
An insulated wire according to claim 26 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 29
Dependent Claim
23 words
An insulated wire according to claim 24 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 30
Dependent Claim
11 words
An insulated wire according to claim 21 where x is 10.
Claim 31
Dependent Claim
17 words
An insulated wire according to claim 29 where y is 35 to 70% of the recurring units.
Claim 32
Dependent Claim
17 words
An insulated wire according to claim 30 where y is 40 to 70% of the recurring units.
Claim 33
Dependent Claim
17 words
An insulated wire according to claim 31 where y is 60 to 70% of the recurring units.
Claim 34
Dependent Claim
16 words
An insulated wire according to claim 32 where y is about 65% of the recurring units.
Claim 35
Dependent Claim
17 words
An insulated wire according to claim 33 where R is tolylene, 4,4'-methylene diphenylene or a mixture thereof.
Claim 36
Dependent Claim
23 words
An insulated wire according to claim 34 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 37
Dependent Claim
23 words
An insulated wire according to claim 32 where R has the mole percent ratio of 4-methyl-m-phenylene, 2-methyl-m-phenylene, 4,4'-methylene diphenylene of 40/10/50 to 80/20/0.
Claim 38
Dependent Claim
26 words
A self-bondable insulated wire according to claim 6 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 39
Dependent Claim
26 words
A self-bondable insulated wire according to claim 7 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 40
Dependent Claim
26 words
A self-bondable insulated wire according to claim 8 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 41
Dependent Claim
26 words
A self-bondable insulated wire according to claim 9 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 42
Dependent Claim
26 words
A self-bondable insulated wire according to claim 10 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 43
Dependent Claim
26 words
A self-bondable insulated wire according to claim 11 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 44
Dependent Claim
26 words
A self-bondable insulated wire according to claim 12 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 45
Dependent Claim
26 words
A self-bondable insulated wire according to claim 13 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 46
Dependent Claim
26 words
A self-bondable insulated wire according to claim 14 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 47
Dependent Claim
26 words
A self-bondable insulated wire according to claim 15 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 48
Dependent Claim
26 words
A self-bondable insulated wire according to claim 16 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 49
Dependent Claim
26 words
A self-bondable insulated wire according to claim 17 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 50
Dependent Claim
26 words
A self-bondable insulated wire according to claim 18 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 51
Dependent Claim
26 words
A self-bondable insulated wire according to claim 19 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 52
Dependent Claim
26 words
A self-bondable insulated wire according to claim 20 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 53
Dependent Claim
26 words
A self-bondable insulated wire according to claim 21 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 54
Dependent Claim
26 words
A self-bondable insulated wire according to claim 22 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 55
Dependent Claim
26 words
A self-bondable insulated wire according to claim 23 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 56
Dependent Claim
26 words
A self-bondable insulated wire according to claim 24 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 57
Dependent Claim
26 words
A self-bondable insulated wire according to claim 25 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 58
Dependent Claim
26 words
A self-bondable insulated wire according to claim 26 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 59
Dependent Claim
26 words
A self-bondable insulated wire according to claim 27 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 60
Dependent Claim
26 words
A self-bondable insulated wire according to claim 28 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 61
Dependent Claim
26 words
A self-bondable insulated wire according to claim 29 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 62
Dependent Claim
26 words
A self-bondable insulated wire according to claim 30 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 63
Dependent Claim
26 words
A self-bondable insulated wire according to claim 31 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 64
Dependent Claim
26 words
A self-bondable insulated wire according to claim 32 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 65
Dependent Claim
26 words
A self-bondable insulted wire according to claim 33 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 66
Dependent Claim
26 words
A self-bondable insulated wire according to claim 34 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 67
Dependent Claim
26 words
A self-bondable insulated wire according to claim 35 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 68
Dependent Claim
26 words
A self-bondable insulated wire according to claim 36 comprising the copolyamide as a topcoat over an insulating basecoat which is a polyester, polyester-imide, or an amide-imide.
Claim 69
Dependent Claim
21 words
A self-bondable insulated wire according to claim 67 wherein the basecoat is a polyester of tris(2-hydroxyethyl)isocyanurate, ethylene glycol, and terephthalic acid.
Claim 70
Dependent Claim
31 words
A self-bondable insulated wire according to claim 67 wherein the basecoat is a polyester-imide made of tris(2-hydroxyethyl) isocyanurate, ethylene glycol, terephthalic acid, methylene dianiline or methylene diphenyl diisocyanate, and trimellitic anhydride.
Claim 71
Dependent Claim
24 words
A self-bondable insulated wire coating to claim 67 wherein the basecoat is a polyamide-imide made of trimellitic anhydride and methylene diphenyl diisocyanate or methylenedianiline.
Claim 72
Dependent Claim
26 words
A self-bondable insulated wire according to claim 67 wherein the basecoat is a polyester of tris(2-hydroxyethyl isocyanurate, ethylene glycol and terephthalic acid overcoated with a polyamide-imide.
Claim 73
Dependent Claim
23 words
A self-bondable insulated wire according to claim 1 which is film wrapped wire and the bondable copolyamide is a coating over the film.
Claim 74
Dependent Claim
73 words
An insulated wire according to claim 1 where the copolyamide has the recurring unit ##STR6## where AL is the divalent hydrocarbon residue of an unsubstituted aliphatic dicarboxylic acid having at least 6 carbon atoms, R is tolylene, phenylene or ##STR7## where F is O, CH 2 , or SO 2 , Ar is p-phenylene, y is 35 to 80% of the recurring units and z is 65 to 20% of the recurring units.
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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) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |