Magnet wire
AssigneeRea Magnet Wire Co., Inc.
InventorsHarold R. Otis, Charles E. Blake, Paul J. Schmidt
Life of this patent
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Abstract
A new and improved magnet wire is provided comprising a copper or aluminum conductor, a basecoat consisting of at least one layer of insulating material around and along the length of the conductor and a polyundecaneamide or polydodecaneamide topcoat around and along the length of the basecoat, wherein the topcoat comprises from approximately 5 to 95% of the total coating thickness.
Claims8
A magnet wire comprising
- a conductor wherein the conductor is a metal selected from the group consisting of copper, aluminum and aluminum alloy;
- a completely organic thermosetting basecoat adjacent the conductor consisting of at least one layer of insulating material around and along the length of the conductor;
- and
- a self-bondable topcoat adjacent to and around and along the length of the basecoat wherein the topcoat is a polyamide selected from the group consisting of polyundecaneamide, polydodecaneamide and mixtures thereof, and wherein the topcoat comprises from 5 to 95% of the total coating thickness.
A magnet wire bondable at an elevated temperature in the range of approximately 190.degree. to 200.degree. C. comprising
- a conductor consisting of a single strand of wire wherein the wire is a metal selected from the group consisting of copper, aluminum and aluminum alloy;
- a thermosetting modified polyester insulating basecoat adjacent to and around and along the length of the conductor;
- a self-bondable topcoat adjacent to and around and along the length of the polyester basecoat wherein the topcoat is a polyamide selected from the group consisting of polyundecaneamide, polydodecaneamide and mixtures thereof, and wherein the topcoat comprises approximately 10 to 20% of the total coating thickness;
- and
- a dry lubricant over the topcoat.
A magnet wire bondable at a temperature of approximately 190.degree. to 200.degree. C. and having a thermal heat life of at least 20,000 hours at 155.degree. C., comprising
- a conductor consisting of a single strand of wire wherein the wire is a metal selected from the group consisting of copper, aluminum and aluminum alloy;
- a thermosetting modified polyester insulating basecoat adjacent to and around and along the length of the conductor;
- and
- a self-bondable polyundecaneamide topcoat adjacent to and around and along the length of the polyester basecoat, and wherein the topcoat comprises approximately 10 to 20% of the total coating thickness.
A magnet wire bondable at a temperature of approximately 190.degree. to 200.degree. C. comprising
- a conductor consisting of a single strand of from No. 14 to No. 35 AWG wire;
- a thermosetting modified polyester, insulating basecoat adjacent to and around and along the length of the conductor having a relatively uniform film thickness of from approximatley 60% to 90% of the total coating thickness;
- and
- a self-bondable topcoat adjacent to and around and along the length of the basecoat, wherein the topcoat is a polyamide selected from the group consisting of polyundecaneamide, polydodecaneamide and mixtures thereof, having a relatively uniform film thickness of from approximately 10% to 40% of the total coating thickness.
A magnet wire bondable at a temperature of approximately 190.degree. to 200.degree. C. with a resulting bondstrength of at least 89 newtons at a temperature of 150.degree. C., having a thermal heat life of at least 20,000 hours at 155.degree. C., and characterized by a dynamic, film against film, coefficient of friction of from 0.14 to 0.16, comprising
- a conductor consisting of a single strand of from No. 14 to No. 35 AWG wire;
- a thermosetting modified polyester, insulating basecoat adjacent to and around and along the length of the conductor having a relatively uniform film thickness of from approximately 60% to 90% of the total coating thickness;
- and
- a self-bondable polyundecaneamide topcoat adjacent to and around and along the length of the basecoat, having a relatively uniform film thickness of from approximately 0.005 to 0.015 millimeter.
A magnet wire bondable at a temperature of approximately 190.degree. to 200.degree. C. with a resulting bondstrength of at least 89 newtons at a temperature of 150.degree. C., comprising
- a conductor consisting of a single strand of from No. 16 to No. 25 AWG copper wire;
- a thermosetting modified polyester, insulating basecoat adjacent to and around and along the length of the conductor having a relatively uniform film thickness of from approximately 0.02 to 0.03 millimeter;
- and
- a self-bondable polyundecaneamide topcoat adjacent to and around and along the length of the basecoat, having a relatively uniform film thickness of from approximately 0.005 to 0.015 millimeter.
Dependencies are inferred from the claim text.