Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Radio

Coil-wire

Method for directly bonding ceramic and metal members and laminated body of the same

OF THE PREFERRED EMBODIMENTS The present invention is based upon a finding that, if the surface of ...

Abradable strain-tolerant ceramic coated turbine shroud

Accordingly, it is an object of the invention to provide an improved high pressure gas turbine ...

Method of producing a composite oxide superconductive wire

In order to achieve the first object mentioned above, the present invention provides a method of ...

Microlaminated composites and method

A particular advantage of microlaminate manufacture in accordance with the invention is that the ...

Ceramic armor

From a thorough investigation of the mechanical properties of a range of structural ceramics, one ...

Copper composites directly bonded to ceramics

The present invention utilizes a copper composite substrate which is directly bonded to a ceramic ...

Methods for bonding structurally dissimilar optical discs

This and other objects of the invention are accomplished in accordance with the principles of the ...

New materials for bone replacement and for joining bones or prostheses

We claim: 1. A composition for replacing bone, joining bones and for implanting prosthesis material ...

Signal processor

With this background of the invention in mind, it is therefore an object of this invention to ...

Imaging apparatus having start-of-imaging signal dependent color temperature measurement for white-balance

It is a primary object of the present invention to provide an imaging apparatus capable of reducing ...

Coil wire

Details

Inventors: Ide, Tatsumi; Sakurai, Toshifumi; Izumi, Masahiro; Sugimura, Kimio;
Assignee: NEC Corporation (JP)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:

A coil wire has a lubricant film formed on an outer surface of an insulation film covering a conductor. The lubricant film is made of polypropylene glycol or a material obtained by substituting a hydrogen atom at at least one end of polypropylene glycol with another reactive group so as to provide a coil wire wherein generation of organic gases can be suppressed.

DETAILED DESCRIPTION It is, therefore, an object of the present invention to improve a composition of a lubricant film formed on an outer surface of an insulation film covering a conductor so as to provide a coil wire wherein generation of organic gases can be suppressed.
It is another object of the present invention to provide a coil wire which can prevent generation of the organic gases and which is prepared by dissolving a resin of the insulation film in a solvent removed of cresol or phenols, and applying a resultant compound to the outer surface of the conductor.
According to an aspect of the present invention, the lubricant film formed on the outer surface of the insulation film covering the conductor is made of polypropylene glycol or material (e.
g.
, polyoxypropylene mono butyl ether or polyoxypropylene mono propyl ether) obtained by substituting a hydrogen atom at at least one end of polypropylene glycol with another reactive group.
According to another aspect of the present invention, the lubricant film formed on the outer surface of the insulation film covering the conductor is made of polyoxyethylene propylene glycol or a material such as polyoxyethylene propylene fatty acid methyl ester (tradename of an equivalent: Nippon Oil Unisafe 40MT1015 manufactured by Nippon Oil & Fats CO.
, Ltd.
) obtained by substituting a hydrogen atom at at least one end of polyoxyethylene propylene glycol.
According to still another aspect of the present invention, the lubricant film formed on the outer surface of the insulation film covering the conductor is made of a polyol ester (eg.
, trimethyolpropane tricaprinic ester and neopentyl glycol dicaprinic ester).
According to still another aspect of the present invention, the insulating film of the coil wire having any one of the aforementioned lubricant films is made of a polyurethane resin dissolved in KA solvent (tradename: 30% of solvent naphtha and 70% of cellsolve acetate butyrate).
According to still another aspect of the present invention, the insulation film of the coil wire is made of a polyurethane resin dissolved in a solvent mixture of xylenol and alcohol

Related patents

	Process for preparing polymers of cyclopentadiene and bicycloheptene mixtures The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A process for preparing polymers of a monomer mixture ...
	Method for the production of hydrocarbon resins What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims: 1. Method for the production of hydrocarbon resins based upon ...
	Laminate of fiber-reinforced, crosslinked polypropylene What is claimed is: 1. A laminate of substrate material for printed circuits which comprises at least one fiber-reinforced support layer, said support layer having a ...
	Planar antenna OF THE INVENTION: The gist of the present invention lies in the use of a dielectric layer containing a homopolymer of 3-methyl- butene-1 or a copolymer of 3-...
	Planar serpentine antennas The formulas for determining the length of the radiator of an antenna for the present invention are: ##EQU1## To shorten the radiator of quarter wavelength antennas ...
	Integrated retroreflective electronic display To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present ...
	Unitary elastic muffler assembly for a pneumatic device I claim: 1. A unitary, elastic muffler assembly adapted for telescopic engagement with the tubular housings of variously sized pneumatic devices exhausting spent working ...
	Perfumery compositions We claim: 1. A perfumery composition comprising 3,3-dimethyl-1,5-dioxaspiro [5,5] undecane and a perfumery composition carrier. 2. A composition according to claim 1 ...
	Chemical bonding of metals to ceramic materials We claim: 1. A method for chemically bonding a body of a refractory oxide ceramic selected from the group consisting of oxides of metals of groups II, III, IV and VIII ...
	Method for directly joining metal pieces to oxide-ceramic substrates It is an object of the invention to provide an improved method for the direct joining of metal pieces to oxide-ceramic substrates, in which a substantially bubble-free ...

0.024
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved