NOVEL COMPOSITIONS WITH CONTROLLED ELECTRICAL PROPERTIES
First Claim
2. a filler selected from the group consisting of electrically conductive metals and their alloys, said filler having a particle size range of about 0.05 to about 50 microns, said particles having an approximately linear distribution of particle sizes with an average particle size of about 1 to about 30 microns, wherein said first insulating semi-conductor coating comprises about 70 to about 90 wt. percent based on the total composition of filler;
- b. a series of additional layers of semi-conductor composition laid one upon the other over said first layer, said additional layers comprising the composition of (a) (1) and (2);
each of said additional layers containing about 10 to about 30 wt. percent less filler than the preceding layers; and
c. a final outer layer of said semi-conductor composition containing about 20 to about 40 wt. percent filler.
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Abstract
An electrical conductor shielded with an insulating coating comprising a semi-conductive material of a polymer having a dielectric constant of at least 2.0 and a filler selected from the group consisting of electrically conductive metals and their alloys, said filler having a particle size range of about 0.05 to about 50 microns, said particles having an approximately linear distribution of particle size with an average particle size of about 1 to about 20 microns.
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Citations
4 Claims
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2. a filler selected from the group consisting of electrically conductive metals and their alloys, said filler having a particle size range of about 0.05 to about 50 microns, said particles having an approximately linear distribution of particle sizes with an average particle size of about 1 to about 30 microns, wherein said first insulating semi-conductor coating comprises about 70 to about 90 wt. percent based on the total composition of filler;
- b. a series of additional layers of semi-conductor composition laid one upon the other over said first layer, said additional layers comprising the composition of (a) (1) and (2);
each of said additional layers containing about 10 to about 30 wt. percent less filler than the preceding layers; and
c. a final outer layer of said semi-conductor composition containing about 20 to about 40 wt. percent filler.
- b. a series of additional layers of semi-conductor composition laid one upon the other over said first layer, said additional layers comprising the composition of (a) (1) and (2);
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3. The composition of claim 2 wherein the filler is present at about 90 wt. percent and has a particle size range of about 0.05 to about 50 microns, said particles having a linear distribution of particle size with an average size of about 1 to about 30 microns.
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4. An insulated conductor which comprises an electrically conductive conductor insulated with a semi-conductor coating composition comprising:
- a. a first layer of the semi-conductor composition comprising;
- a. a first layer of the semi-conductor composition comprising;
Specification
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- Resources
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Current AssigneeEric O. Forster
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Original AssigneeEric O. Forster
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InventorsForster, Eric O.
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Primary Examiner(s)Myers, Lewis H.
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Assistant Examiner(s)Grimley, A. T.
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Application NumberUS05/055,776Time in Patent Office683 DaysField of Search174/36,12SC,15SC,16SC,12SC,12R,127 117/75,127,128,128.4,230,232US Class Current174/36CPC Class CodesH01B 3/004 with conductive additives o...H01B 9/027 composed of semi-conducting...
