Patent ID: 7759437

Claim:
A norbornene derivative represented by formula (Im): wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 are each independently an atom or a group selected from the group consisting of a hydrogen atom, a halogen atom, a substituted hydrocarbon group of 1 to 30 carbon atoms, a substituted hydrocarbon groups of 1 to 30 carbon atoms having a linkage containing an oxygen atom, a nitrogen atom, a sulfur atom, or a silicon atom, an unsubstituted hydrocarbon group of 1 to 30 carbon atoms, an unsubstituted hydrocarbon group of 1 to 30 carbon atoms having a linkage containing an oxygen atom, a nitrogen atom, a sulfur atom or a silicon atom, and a polar group, s, t and u are each independently an integer of 0 to 3, and m and n are each independently an integer of 0 to 2.