Passive electrical article

Abstract

A passive electrical article including a dielectric layer having a nonwoven material.

1 . An article comprising:
 a passive electrical article having a dielectric layer comprising a resin and a nonwoven material.   
     
     
         2 . The article of  claim 1  wherein the nonwoven material is selected from the group consisting of liquid crystal polymer, nylon, polyester, polystyrene, polyacrylonitrile, polypropylene, polyvinylidene fluoride (PVDF), and hybrid materials such as poly(ether sulfone)-polyvinylidene fluoride (PES-PVDF), polyetherimide-polyvinylidene fluoride (PEI-PVDF), polyacrylonitrile- polyvinylidene fluoride (PAN-PVDF), ethylene chlorotrifluoroethylene (ECTFE), and combinations thereof. 
     
     
         3 . The article of  claim 1  wherein the nonwoven material comprises liquid crystal polymer. 
     
     
         4 . The article of  claim 1  wherein the nonwoven material is about 20 micrometers to about 0.5 micrometers thick. 
     
     
         5 . The article of  claim 1  wherein the nonwoven material comprises fibers having diameters of about 20 to about 500 nanometers. 
     
     
         6 . The article of  claim 1  wherein the dielectric layer further comprises dielectric particles. 
     
     
         7 . The article of  claim 1  wherein the nonwoven material is selected from the group consisting of meltblown nonwovens, spunbond nonwovens, and electrospun nonwovens. 
     
     
         8 . The article of  claim 1  wherein the nonwoven material is crosslinked. 
     
     
         9 . The article of  claim 1  further comprising a conductive substrate on either side of the dielectric layer. 
     
     
         10 . A method of making an electrical article comprising:
 providing two conductive substrates,   coating a resin on a surface of each conductive substrate,   providing a nonwoven material between the resin-coated surfaces of the conductive substrates, and   laminating the resin-coated conductive substrates and the nonwoven material together.   
     
     
         11 . The method of  claim 10  wherein the nonwoven material is selected from the group consisting of liquid crystal polymer, nylon, polyester, polystyrene, polyacrylonitrile, polypropylene, polyvinylidene fluoride (PVDF),and hybrid materials such as poly(ether sulfone)-polyvinylidene fluoride (PES-PVDF), polyetherimide-polyvinylidene fluoride (PEI-PVDF), polyacrylonitrile- polyvinylidene fluoride (PAN-PVDF), ethylene chlorotrifluoroethylene (ECTFE), and combinations thereof. 
     
     
         12 . The method of  claim 10  wherein the nonwoven material is about 20 micrometers to about 0.5 micrometers thick. 
     
     
         13 . The method of  claim 10  wherein the nonwoven material comprises fibers having diameters of about 20 to about 500 nanometers. 
     
     
         14 . The method of  claim 10  wherein the nonwoven material is crosslinked. 
     
     
         15 . A method of making an electrical article comprising:
 coating a resin layer on a surface of a first conductive substrate,   forming a nonwoven material on a surface of a second conductive substrate, and   laminating the conductive substrate together with the resin layer and nonwoven material facing each other.   
     
     
         16 . The method of  claim 15  wherein the nonwoven material is about 20 micrometers to about 0.5 micrometers thick. 
     
     
         17 . The method of  claim 15  wherein the nonwoven material comprises fibers having diameters of about 20 to about 500 nanometers. 
     
     
         18 . A method of making an electrical article comprising:
 forming a nonwoven material on a first surface of one or both of a first and second conductive substrate;   coating a resin layer on the first surfaces of both conductive substrates, and   laminating the conductive substrates together with the resin-coated first surfaces facing each other.   
     
     
         19 . The method of  claim 18  wherein the nonwoven material is about 20 micrometers to about 0.5 micrometers thick. 
     
     
         20 . The method of  claim 18  wherein the nonwoven material comprises fibers having diameters of about 20 to about 500 nanometers.