US 10,394,127 B2  77  78  formed.  The  oxyalkylene  chain  1s  preferably  ----CH$_{2}$CH$_{2}$0-. Specific examples thereof include tris  (methoxyethoxyethyl)amine and a compound disclosed after  line 60 of column 3 in the specification of U.S. Pat. No.  6,040, 112A.  Among the basic compounds represented by General  Formula (BS-1), examples of such the basic compounds  having a hydroxyl group, an oxygen atom, or the like include  the following ones.  didecylamine, methyl octadecylamine, dimethylundecylam› ine, N,N-dimethyldodecylamine, methyl dioctadecylamine,  N,N-dibutylaniline, N,N-dihexylaniline, 2,6-diisopropylani› line, and 2,4,6-tri(t-butyl)aniline.  In addition, as the preferable basic compound represented  by General Formula (BS-1), an alkyl group in which at least  one R is substituted with a hydroxy group is exemplified.  Specific examples thereof include triethanolamine and N,N› dihydroxyethylaniline.  Moreover, the alkyl group as R may have an oxygen atom  in the alkyl chain. That is, an oxyalkylene chain may be  rO~OH  /O~N~ 0 ~0H  rO~OH  /O~N~O~OH  rO~OH  /’---.../O~N~O/’---._  rO~OH  HO~O~N~ 0 ~0H  rO~OH  /O~N~O~OH  [a/’---..  /O~N~O/’---._  rO~OH  /O~N~ 0 rO~OH  ’--o~N~o~OH  rO~O~OH  /O~N~o~o~OH  rs~s’--..  /s~N~ 8 ~s’--..  rs~SH  /S~N~S~SH  HO~O  rs~SH  HO~S~N~S~SH  rs~OH  /O~N~C~OH  0  ~  ;\  ;\  --0  N  O  O  O  \_  #  r  HO__rO  rO~OH  N~ 0 ~0H  rO~O~OH  HO~N~o~o~OH 