EP0212645A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Urethane-resin coated electrical wire having an intermediate layer
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1986-08-22
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Granted: —
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Expires: 2006-08-22
Abstract
Abstract An electrical wire in which a core of stranded, insulated conductors is first coated with a thermoplastic resin layer having of melt index of at least 0.2 and then extrusion coated with a urethane resin layer. The urethane resin layer may be radiation cured.
Inventors
- 👤 Keiji C/O Osaka Works Ueno
- 👤 Ikujiro C/O Kantoh Works Uda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 03:57
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/02; H01B7/0208; H01B3/00; H01B3/18; H01B3/30; H01B3/302; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/2958
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
57 words
An electrical wire, comprising: a stranded core of two or more twisted conductors, each conductor being surrounded by a respective insulation layer; a thermoplastic resin coating layer covering said stranded core and comprising a thermoplastic resin having a melt index of 0.2 or greater; and an extrusion-coated urethane resin coating layer covering said thermoplastic resin coating layer.
Claim 2
Dependent Claim
57 words
An electrical wire, comprising: a stranded core of two or more twisted conductors, each conductor being surrounded by a respective insulation layer; a thermoplastic resin coating layer covering said stranded core and comprising a thermoplastic resin having a melt index of 0.2 or greater; and an extrusion-coated urethane resin coating layer covering said thermoplastic resin coating layer.
Claim 3
Dependent Claim
24 words
. 2. An electrical wire as recited in Claim 1, wherein said thermoplastic resin coating layer is a layer of radiation crosslinked thermoplastic resin.
Claim 4
Dependent Claim
20 words
An electrical wire as recited in Claim 2, wherein said radiation crosslinked thermoplastic resin is an electron crosslinked thermoplastic resin.
Claim 5
Dependent Claim
40 words
An electrical wire as recited in Claim 2, wherein said urethane resin coating layer is made of a composition comprising a thermoplastic urethane resin and a polyfunctional monomer selected from the group consisting of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate and triacrylformal.
Claim 6
Dependent Claim
38 words
An electrical wire as recited in Claim 4, wherein said composition comprises said polyfunctional monomer in an amount of 0.1 to 50 parts by weight and said thermoplastic urethane resin in an amount of 100 parts by weight.
Claim 7
Dependent Claim
18 words
An electrical wire as recited in Claim 4, wherein said composition further comprises decabromodiphenyl ether and antimony trioxide.
Claim 8
Dependent Claim
18 words
An electrical wire as recited in Claim 5, wherein said composition further comprises decabromodiphenyl ether and antimony trioxide.
Claim 9
Dependent Claim
17 words
An electrical wire as recited in Claim 1, wherein said melt index is not greater than 50.
References Cited (Backward Citations)
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