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Block Copolymerized Polyimide Ink Composition for Printing

  • US 20080275181A1
  • Filed: 05/24/2005
  • Published: 11/06/2008
  • Est. Priority Date: 05/27/2004
  • Status: Abandoned Application
First Claim
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1. A polyimide ink composition for printing, comprising a mixed solvent containing a benzoic acid ester solvent and a glyme solvent, and a polyimide soluble in said mixed solvent;

  • wherein said polyimide is obtained by polycondensing a polyimide oligomer with a tetracarboxylic dianhydride component(s) and/or a diamine component(s) having no siloxane bond in molecular skeleton thereof, said polyimide oligomer being prepared by polycondensing a tetracarboxylic dianhydride component(s) and a diamine component(s) having siloxane bonds in molecular skeleton thereof in the presence of a base catalyst(s), or a mixed catalyst including a lactone(s) and/or an acidic compound(s) and a base(s);

    the content of said diamine component(s) having siloxane bonds based on the total diamine components being 15 to 85% by weight.

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