Low-corrosion epoxy resins and production methods therefor

Abstract

The invention relates to epoxy resins having an extremely low content of chlorine, particularly a low content of organically bound chlorine. The invention also relates to a production method during which total chlorine contents of less than 100 ppm in the epoxy resin are achieved by extracting solid epoxy resin particles, optionally after a prior comminution and/or reprecipitation. The use of these low-chlorine epoxy resins in the fields of electronics and/or electrical engineering considerably reduces the components' susceptibility to corrosion.

1 . An epoxy resin having a total chlorine content of less than 100 ppm, said chlorine being present in at least one of an organically and an ionically bound form. 
   
   
       2 . An epoxy resin obtainable by extracting solid epoxy resin in a solvent with a total chlorine content of less than 100 ppm, wherein said chlorine is present in one of an organically and an ionically bound form. 
   
   
       3 . An extracted epoxy resin having a total chlorine content of less than 100 ppm, said chlorine being present in at least one of an organically and an ionically bound form. 
   
   
       4 . A method of using a low-chlorine resin to produce an electronic component with reduced susceptibility to corrosion, comprising the steps of:
 providing an electronic component; and   combining the electronic component with the epoxy resin according to  claim 1 .   
   
   
       5 . A method of using a low-chlorine resin to produce an electronic component with reduced susceptibility to corrosion, comprising the steps of:
 providing an electronic component; and   combining the electronic component with the epoxy resin according to  claim 2 .   
   
   
       6 . A method of using a low-chlorine resin to produce an electronic component with reduced susceptibility to corrosion, comprising the steps of:
 providing an electronic component; and   combining the electronic component with the extracted epoxy resin according to  claim 3 .