US4354965A
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US
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Polyetheramideimide resins and electrical conductors insulated therewith
Assignee: Von Roll Isola USA Inc
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Filing: 1981-03-20
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Granted: 1982-10-19
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Expires: 2001-03-20
Abstract
Abstract Novel high molecular weight resins, useful for electrically insulating conductors, are prepared by polycondensing a mixture of anhydrides, and a diisocyanate and/or a diamine in an inert organic solvent, preferably in the presence of a catalytic amount of 2-methylimidazole.
Inventors
- 👤 Yue-guey L. Lee
- 👤 Otto S. Zamek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:01
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/34; C08G18/343; C08G18/346; C08G73/00; C08G73/06; C08G73/10; C08G73/14; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/306; H01B3/308; H01B3/42; H01B3/421; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31565
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
129 words
A high molecular weight polyetheramideimide resin prepared by subjecting (A) a combination of anhydrides comprising: (i) from 1 to 99 parts by weight of a dianhydride of the formula ##STR7## or a mixture thereof with at least one other dianhydride of an organic tetracarboxylic acid, and (ii) from 99 to 1 parts by weight of a tribasic acid anhydride, and (B) 0.99 to 1.01 moles, per mole of the anhydride, of a difunctional organic nitrogen compound of the formula (i) O═C═N--R--N═C═O, (ii) H 2 N--R--NH 2 , or (iii) a mixture of (i) and (ii), wherein R is divalent alkylene of 2 to 20 carbon atoms, ##STR8## or a mixture thereof, to polycondensation at a temperature of about 60° to 200° C. in the presence of an inert solvent.
Claim 2
Dependent Claim
129 words
A high molecular weight polyetheramideimide resin prepared by subjecting (A) a combination of anhydrides comprising: (i) from 1 to 99 parts by weight of a dianhydride of the formula ##STR7## or a mixture thereof with at least one other dianhydride of an organic tetracarboxylic acid, and (ii) from 99 to 1 parts by weight of a tribasic acid anhydride, and (B) 0.99 to 1.01 moles, per mole of the anhydride, of a difunctional organic nitrogen compound of the formula (i) O═C═N--R--N═C═O, (ii) H 2 N--R--NH 2 , or (iii) a mixture of (i) and (ii), wherein R is divalent alkylene of 2 to 20 carbon atoms, ##STR8## or a mixture thereof, to polycondensation at a temperature of about 60° to 200° C. in the presence of an inert solvent.
Claim 3
Dependent Claim
22 words
A polyetheramideimide resin as defined in claim 1 wherein polycondensation is carried out in the presence of a catalytic amount of 2-methylimidazole.
Claim 4
Dependent Claim
28 words
A polyetheramideimide resin as defined in claim 2 wherein the amount of 2-methylimidazole comprises from trace amounts up to about 10 mole percent, based on anhydride component (A).
Claim 5
Dependent Claim
30 words
A polyetheramideimide as defined in claim 1 wherein, in Component (A), (i) comprises from 40 to 60 parts by weight, and (ii) comprises from 60 to 40 parts by weight.
Claim 6
Dependent Claim
16 words
A polyetheramideimide resin as defined in claim 1 wherein, in difunctional component (B)(i), R is ##STR9##
Claim 7
Dependent Claim
16 words
A polyetheramideimide resin as defined in claim 1 wherein, in difunctional component (B)(ii), R is ##STR10##
Claim 8
Dependent Claim
26 words
A polyetheramideimide resin as defined in claim 1 wherein the inert solvent comprises N-methylpyrrolidone, dimethylacetamide, an aromatic hydrocarbon, or a mixture of any of the foregoing.
Claim 9
Dependent Claim
18 words
A polyetheramideimide resin as defined in claim 1 wherein in component (A)(i), the other dianhydride is benzophenonetetracarboxylic dianhydride.
Claim 10
Dependent Claim
17 words
A polyetheramideimide as defined in claim 1 wherein in component (A)(i), the other dianhydride is pyromellitic dianhydride.
Claim 11
Dependent Claim
17 words
An electrical conductor having an insulating resin coating thereon, said resin being as defined in claim 1.
Claim 12
Dependent Claim
17 words
An electrical conductor having an insulating resin coating thereon, said resin being as defined in claim 5.
Claim 13
Dependent Claim
17 words
An electrical conductor having an insulating resin coating thereon, said resin being as defined in claim 6.
Claim 14
Dependent Claim
21 words
A coating composition comprising a polyetheramideimide resin dissolved in an organic solvent, said polyetheramideimide resin being as defined in claim 1.
Claim 15
Dependent Claim
27 words
A coating composition as defined in claim 13, said organic solvent being selected from N-methylpyrrolidone, dimethylacetamide, an aromatic hydrocarbon, or a mixture of any of the foregoing.
Claim 16
Dependent Claim
21 words
An electrical conductor having an insulating resin coating thereon, said coating solely consisting of a resin as defined in claim 1.
Claim 17
Dependent Claim
32 words
An electrical conductor having an insulating resin coating thereon, said coating consisting of a base coat of a polyester or polyesterimide and an overcoat of a resin as defined in claim 1.
Claim 18
Dependent Claim
105 words
A high molecular weight polyetheramideimde resin prepared by subjecting (A) a combination of anhydrides comprising: (i) from 1 to 99 parts by weight of a dianhydride of the formula ##STR11## (ii) from 99 to 1 parts by weight of a tribasic acid anhydride and (B) 0.99 to 1.01 moles, per mole of the anhydride, of a difunctional organic nitrogen compound of the formula (i) O═C═N--R--N═C═O, (ii) H 2 N--R--NH 2 , or (iii) a mixture of (1) and (ii), wherein R is ##STR12## or a mixture thereof, to polycondensation at a temperature of about 60° to 200° C. in the presence of an inert solvent.
Claim 19
Dependent Claim
105 words
A high molecular weight polyetheramideimde resin prepared by subjecting (A) a combination of anhydrides comprising: (i) from 1 to 99 parts by weight of a dianhydride of the formula ##STR11## (ii) from 99 to 1 parts by weight of a tribasic acid anhydride and (B) 0.99 to 1.01 moles, per mole of the anhydride, of a difunctional organic nitrogen compound of the formula (i) O═C═N--R--N═C═O, (ii) H 2 N--R--NH 2 , or (iii) a mixture of (1) and (ii), wherein R is ##STR12## or a mixture thereof, to polycondensation at a temperature of about 60° to 200° C. in the presence of an inert solvent.
Claim 20
Dependent Claim
22 words
A polyetheramideimide resin as defined in claim 17 wherein polycondensation is carried out in the presence of a catalytic amount of 2-methylimidazole.
Claim 21
Dependent Claim
28 words
A polyetherimide resin as defined in claim 18 wherein the amount of 2-methylimidazole comprises from trace amounts up to about 10 mole percent based on anhydride component (A).
Claim 22
Dependent Claim
29 words
A polyetheramideimide as defined in claim 17 wherein, component (A), (i) comprises from 40 to 60 parts by weight, and (ii) comprises from 60 to 40 parts by weight.
Claim 23
Dependent Claim
17 words
A polyetheramideimide resin as defined in claim 17 wherein, in difunctional component (B) (i), R is ##STR13##
Claim 24
Dependent Claim
17 words
A polyetheramideimide resin as defined in claim 17, wherein, in difunctional component (B) (ii), R is ##STR14##
Claim 25
Dependent Claim
26 words
A polyetheramideimide resin as defined in claim 17 wherein the inert solvent comprises N-methylpyrrolidone, dimethylacetamide, an aromatic hydrocarbon, or a mixture of any of the foregoing.
Claim 26
Dependent Claim
17 words
An electrical conductor having an insulating resin coating thereon, said resin being as defined in claim 17.
Claim 27
Dependent Claim
17 words
An electrical conductor having an insulating resin coating thereon, said resin being as defined in claim 21.
Claim 28
Dependent Claim
17 words
An electrical conductor having an insulating resin coating thereon, said resin being as defined in claim 22.
Claim 29
Dependent Claim
21 words
A coating composition comprising a polyetheramideimide resin dissolved in an organic solvent, said polyetheramideimide resin being as defined in claim 17.
Claim 30
Dependent Claim
27 words
A coating composition as defined in claim 27, said organic solvent being selected from N-methylpyrrolidone, dimethylacetamide, an aromatic hydrocarbon, or a mixture of any of the foregoing.
Claim 31
Dependent Claim
21 words
An electrical conductor having an insulating resin coating thereon, said coating solely consisting of a resin as defined in claim 17.
Claim 32
Dependent Claim
32 words
An electrical conductor having an insulating resin coating thereon, said coating consisting of a base coat of a polyester or polyesterimide and an overcoat of a resin as defined in claim 17.
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) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |