Further, Comparative Example 5 is an example in which triphenylphosiphine well known as a curing accelerator is used, and it has been apparent that as is the case with Comparative Example 4, the pot life is very short and it has a fatal problem on coating workability. [0802] Comparative Example 6 or Comparative Example 7 is an example in which a blending amount of the curing agent is too small or