US 2012/0003590 Al  33  Jan. 5, 2012  -continued  -continued  (a4)  ---fCH2-CH-,-- 6--o  (OH)J4  (a5)  [0259]  Each ofj 1,j2,j3,j4 andj5 independently represents  an integer of O to 3.  [0260]  Each of j 1, j2, j3, j4 and j 5 independently represents  preferably an integer of O to 2, more preferably O or 1.  [0261]  Specific examples of the repeating unit represented  by any of formulae (al) to (a5) are illustrated below, but the  present invention is not limited thereto.  [0258]  The resin above may further contain a repeating unit  represented by any of the following formulae (al) to (a5), in  addition to the repeating unit (A) and the repeating unit (B).  (a2)  (a3)  OH  OH  (al)  ---fCH2-CH-,--