Patent US3230401A successfully refreshed from Google Patents.
Patent US4379879A successfully refreshed from Google Patents.
US4379879A
Expired / Lapsed
US
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Heat resistant resin composition and insulating wire using the same which is a composition of an active hydrogen compound and the reaction product of a polyvalent isocyanate and a polyvalent carboxylic acid anhydride in an organic solvent
Assignee: Resonac Corp
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Filing: 1981-09-03
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Granted: 1983-04-12
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Expires: 2001-09-03
Abstract
Abstract A resin composition comprising (A) a reaction product obtained by reacting (a) a polyvalent isocyanate, (b) a polyvalent carboxylic acid anhydride, and if necessary, (c) a polyvalent carboxylic acid, in an organic solvent, and (B) a compound having active hydrogen in the molecule except for a phenolic compound, shows excellent heat resistance and storage stability. Insulated wires obtained by coating said resin composition on an electric conductor directly or indirectly are advantageously produced.
Inventors
- 👤 Yasunori Okada
- 👤 Shozo Kasai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:32
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/302; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/34; C08G18/343; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31605
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
130 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) A polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an organic solvent, and (B) a compound having one or more active hydrogens in the molecule except for a phenolic compound, said composition being able to be heated or not heated; and from 0.1 to 10% by weight of said compound (B), based on the weight of the reaction product (A) being added to reaction product (A) to form said composition.
Claim 2
Dependent Claim
130 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) A polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an organic solvent, and (B) a compound having one or more active hydrogens in the molecule except for a phenolic compound, said composition being able to be heated or not heated; and from 0.1 to 10% by weight of said compound (B), based on the weight of the reaction product (A) being added to reaction product (A) to form said composition.
Claim 3
Dependent Claim
38 words
A resin composition according to claim 1, wherein the reaction product (A) is obtained by reacting 0.6 to 1.1 equivalents of the isocyanate group with one equivalent of total of the carboxyl group and the acid anhydride group.
Claim 4
Dependent Claim
14 words
A resin composition according to claim 1, wherein the compound (B) is an amine.
Claim 5
Dependent Claim
14 words
A resin composition according to claim 1, wherein the compound (B) is an alcohol.
Claim 6
Dependent Claim
14 words
A resin composition according to claim 1, wherein the compound (B) is an acid.
Claim 7
Dependent Claim
31 words
A resin composition according to claim 1, wherein the compound (B) is used in an amount of 0.1 to 10% by weight based on the weight of the reaction product (A).
Claim 8
Dependent Claim
33 words
A resin composition according to claim 1, wherein the polyvalent isocyanate (a) is 4,4'-diphenylmethane diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, mixtures of these isomers, 4,4'-diphenylether diisocyanate, xylylene diisocyanate, 1,6-hexamethylene diisocyanate or a mixture thereof.
Claim 9
Dependent Claim
30 words
A resin composition according to claim 1, wherein the polyvalent carboxylic acid (b) is trimellitic acid anhydride, pyromellitic acid anhydride, benzophenonetetracarboxylic acid anhydride, 1,2,3,4-butanetetracarboxylic acid anhydride, or a mixture thereof.
Claim 10
Dependent Claim
30 words
A resin composition according to claim 1, wherein the polyvalent carboxylic acid (c) is adipic acid, succinic acid, trimesic acid, terephthalic acid, isophthalic acid, phthalic acid or a mixture thereof.
Claim 11
Dependent Claim
20 words
A resin composition according to claim 3, wherein the amine is n-butylamine, n-propylamine, isopropylamine, isobutylamine, t-butylamine or a mixture thereof.
Claim 12
Dependent Claim
22 words
A resin composition according to claim 4, wherein the alcohol is n-butanol, isopropanol, methanol, ethanol, n-propanol, isobutanol, t-butanol or a mixture thereof.
Claim 13
Dependent Claim
18 words
A resin composition according to claim 5, wherein the acid is formic acid, acetic acid or propionic acid.
Claim 14
Dependent Claim
35 words
An insulated wire produced by coating the resin composition of claim 1 on an electric conductor directly or indirectly through other insulating coating which is coated on an electric conductor and baking said resin composition.
Claim 15
Dependent Claim
21 words
An insulated wire according to claim 13, wherein the insulating coating is present between the electric conductor and the resin composition.
Claim 16
Dependent Claim
42 words
An insulated wire according to claim 13, wherein the resin composition comprises (A) a reaction product obtained by reacting 4,4'-diphenylmethane diisocyanate, trimellitic acid anhydride, and if necessary, adipic acid in an organic solvent, and (B) an alcohol, an acid or an amine.
Claim 17
Dependent Claim
94 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) a polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an oranic solvent, and (B) n-butylamine, n-propylamine, isopropylamine, isobutylamine, or t-butylamine or a mixture thereof, said composition being able to be heated or not heated.
Claim 18
Dependent Claim
94 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) a polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an oranic solvent, and (B) n-butylamine, n-propylamine, isopropylamine, isobutylamine, or t-butylamine or a mixture thereof, said composition being able to be heated or not heated.
Claim 19
Dependent Claim
95 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) a polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an organic solvent, and (B) n-butanol, isopropanol, methanol, ethanol, n-propanol, or isobutanol or a mixture thereof, said composition being able to be heated or not heated.
Claim 20
Dependent Claim
95 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) a polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an organic solvent, and (B) n-butanol, isopropanol, methanol, ethanol, n-propanol, or isobutanol or a mixture thereof, said composition being able to be heated or not heated.
Claim 21
Dependent Claim
93 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) a polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an organic solvent, and (B) acetic acid or propionic acid, or a mixture thereof, said composition being able to be heated or not heated.
Claim 22
Dependent Claim
93 words
A heat resistant resin composition comprising: (A) a reaction product obtained by reacting (a) a polyvalent isocyanate having two or more isocyanate groups in the molecule, (b) a polyvalent carboxylic acid having one or more acid anhydride groups in the molecule or a functional derivative thereof, and, if necessary, (c) a polyvalent carboxylic acid having two or more carboxyl groups in the molecule or a functional derivative thereof, in an organic solvent, and (B) acetic acid or propionic acid, or a mixture thereof, said composition being able to be heated or not heated.
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) | 1986-04-11 | 1986-10-11 | 1987-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-11 | 1990-10-11 | 1991-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-11 | 1994-10-11 | 1995-04-12 | $7700.00 | Window Closed / Lapsed |