Patent ID: 6908692
Filing Date: 2005-06-21
Classification: H01B,Y10T

Abstract:
1. An electrically conductive wire coated with a curable coating composition, comprising: (A) 1-60 wt. % of at least one reactive particle, said reactive particles having an average radius ranging from 1 nm to 300 nm, wherein said reactive particles are based on an element-oxygen network, and wherein the elements are selected from the group consisting of silicon, zinc, aluminum, tin, boron, germanium, gallium, lead, the transition metals, and lanthanides and actinides; (B) 0-90 wt. % of at least one binder having at least one functional group capable of chemically reacting with the reactive particle of component (A); and (C) 0-95 wt. % of at least one additional component selected from the group consisting of additive, solvent, pigment and filler; wherein the total wt. % of (A)+(B)+(C) equals 100 wt. %; wherein the element-oxygen network of said reactive particles has at least one reactive function R 1 and optionally at least one non-reactive and/or at least one partially reactive functions R 2 and R 3 bound by way of an oxygen of the element oxygen-network to the surface of said reactive particles, the reactive function R 1 being contained in an amount up to 98 wt. % of said reactive particles and the non-reactive and/or partially reactive functions R 2 and R 3 being contained in an amount from 0-97 wt. % of said reactive particles; wherein R 1 comprises radicals selected from the group consisting of metal acid esters, NCO, urethane groups, epoxide groups, epoxy, carboxylic acid anhydride, C═C double bond systems, OH, alcohols bound by way of oxygen, alcohols bound by way of esters, alcohols bound by way of ethers, chelating agents, COOH, NH 2 , NHR 4 , and reactive resin components; wherein R 2 comprises radicals selected from the group consisting of aromatic compounds, aliphatic compounds, fatty acid derivatives, esters, and ethers; wherein R 3 comprises resin radicals; wherein R 4 comprises radicals selected from the group consisting of acrylate, phenol, melamine, polyurethane, polyester, polyester imide, polysulfide, epoxide, polyamide, polyvinyl formal resins, aromatic compounds, aliphatic compounds, esters, ethers, alcoholates, fats, and chelating agents; wherein said reactive particles of component A require the presence of the at least one binder of component B when the reactive function R 1 comprises radicals selected from the group consisting of metal acid esters, NCO, urethane groups, epoxide groups, epoxy, carboxylic acid anhydride, C═C double bond systems, OH, alcohols, bound by way of oxygen, alcohols bound by way of esters, alcohols bound by way of ethers, chelating agents, COOH, NH 2 , and NHR 4 ; whereby, after application and curing of the curable coating composition, the element-oxygen network becomes an inorganic-organic-oxygen network providing a cured coating with high partial discharge resistance.