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EP0365877A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Polyamideimide insulated wire

Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1989-10-03
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Granted: —
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Expires: 2009-10-03
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Abstract

Abstract An insulated wire comprising a conductor coated and baked thereon with an insulating lacquer, the insulating lacquer comprising (a) 100 parts by weight of a polyamideimide resin having a molecular weight corresponding to a reduced specific viscosity of from 0.1 to 1.0, and (b) 75 to 400 parts by weight of a stabilized polyisocyanate compound derived from diphenylmethane­diisocyanate.

Inventors

  • 👤 Isao C/O Osaka Works Of Sumitomo Ueoka
  • 👤 Teruyuki C/O Osaka Works Of Sumitomo Yamamoto

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 03:10
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6415; C08G18/6438; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 58 words
An insulated wire comprising a conductor coated and baked thereon with an insulating lacquer, the insulating lacquer comprising (a) 100 parts by weight of a polyamideimide resin having a molecular weight corresponding to a reduced specific viscosity of from 0.1 to 1.0, and (b) 75 to 400 parts by weight of a stabilized polyisocyanate compound derived from diphenylmethane­diisocyanate.
Claim 2
Dependent Claim 58 words
An insulated wire comprising a conductor coated and baked thereon with an insulating lacquer, the insulating lacquer comprising (a) 100 parts by weight of a polyamideimide resin having a molecular weight corresponding to a reduced specific viscosity of from 0.1 to 1.0, and (b) 75 to 400 parts by weight of a stabilized polyisocyanate compound derived from diphenylmethane­diisocyanate.
Claim 3
Dependent Claim 32 words
An insulated wire as claimed in Claim 1, wherein the polyamideimide resin is a compound derived from a reaction of an aromatic tricarboxylic anhydride or a derivative thereof with an aromatic diisocyanate.
Claim 4
Dependent Claim 33 words
An insulated wire as claimed in Claim 1, wherein the stabilized polyisocyanate compound derived from diphenylmethanediisocyanate is a stabilized polyisocyanate compound derived by stabilizing the isocyanate group of diphenylmethanediisocyanate with a blocking agent.
Claim 5
Dependent Claim 33 words
An insulated wire as claimed in Claim 2, wherein the stabilized polyisocyanate compound derived from diphenylmethanediisocyanate is a stabilized polyisocyanate compound derived by stabilizing the isocyanate group of diphenylmethanediisocyanate with a blocking agent.
Claim 6
Dependent Claim 36 words
An insulated wire as claimed in Claim 1, wherein the stabilized polyisocyanate compound derived from diphenylmethanediisocyanate is a stabilized polyisocyanate compound derived by stabilizing the polyisocyanate derived from a polyol and diphenylmethanediisocyanate with a blocking agent.
Claim 7
Dependent Claim 36 words
An insulated wire as claimed in Claim 2, wherein the stabilized polyisocyanate compound derived from diphenylmethanediisocyanate is a stabilized polyisocyanate compound derived by stabilizing the polyisocyanate derived from a polyol and diphenylmethanediisocyanate with a blocking agent.
Claim 8
Dependent Claim 17 words
An insulated wire as claimed in Claim 1, wherein the insulating lacquer further comprises an epoxy resin.
Claim 9
Dependent Claim 17 words
An insulated wire as claimed in Claim 2, wherein the insulating lacquer further comprises an epoxy resin.
Claim 10
Dependent Claim 17 words
An insulated wire as claimed in Claim 7, wherein the epoxy resin is a brominated phenoxy resin.
Claim 11
Dependent Claim 26 words
An insulated wire as claimed in Claim 1, wherein the polyamideimide resin has a molecular weight corresponding to a reduced specific viscosity of 0.2 to 0.5.
Claim 12
Dependent Claim 26 words
An insulated wire as claimed in Claim 2, wherein the polyamideimide resin has a molecular weight corresponding to a reduced specific viscosity of 0.2 to 0.5.
Claim 13
Dependent Claim 26 words
An insulated wire as claimed in Claim 3, wherein the polyamideimide resin has a molecular weight corresponding to a reduced specific viscosity of 0.2 to 0.5.
Claim 14
Dependent Claim 26 words
An insulated wire as claimed in Claim 5, wherein the polyamideimide resin has a molecular weight corresponding to a reduced specific viscosity of 0.2 to 0.5.
Claim 15
Dependent Claim 26 words
An insulated wire as claimed in Claim 6, wherein the polyamideimide resin has a molecular weight corresponding to a reduced specific viscosity of 0.2 to 0.5.
Claim 16
Dependent Claim 25 words
An insulated wire as claimed in Claim 1, wherein the polyamideimide resin has a molecular weight corresponding to a reduced specific viscosity of about 0.3.

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