US 2020/0050104 Al  101  Feb. 13, 2020  -continued  -continued  0  0  [0117]  Further, recurring units ( c) having another adhesive  group selected from hydroxyl ( other than the foregoing  phenolic hydroxyl), lactone ring, ether bond, ester bond,  carbonyl, cyano, and carboxyl groups may also be incorpo› rated in the base polymer. Examples of suitable monomers  from which recurring units ( c) are derived are given below,  but not limited thereto. Herein  RA  is as defined above. 