Patent ID: 8431325

Claim:
A compound represented by the formula (A); wherein R 1 represents a hydrogen atom or a C 1 to C 6 alkyl group; Z 1 represents —CO—O—* or —CO—O—(CH 2 ) k —CO—O—*; Z 2 represents a single bond, *—O—CO—, *—CO—O—, *—O—(CH 2 ) k —CO—, *—CO—(CH 2 ) k —O—, *—O—(CH 2 ) k —CO—O—, *—O—CO—(CH 2 ) k —O— or *—O—CO—(CH 2 ) k —O—CO—; k represents an integer of 1 to 6; * represents a binding position to W; W represents a C 4 to C 36 (n+1) valent alicyclic hydrocarbon group, one or more hydrogen atoms contained in the alicyclic hydrocarbon group may be replaced by a halogen atom, a C 1 to C 12 alkyl group, a C 1 to C 12 alkoxy group, a C 2 to C 4 acyl group or —OR 10 ; R 10 represents a hydrogen atom or a group represented by the formula (R 2 -2); R 2 represents a hydrogen atom, a group represented by the formula (R 2 -1) or a group represented by the formula (R 2 -2); n represents an integer of 1 to 3; wherein R 4 , R 5 and R 6 independently represent a C 1 to C 12 hydrocarbon group; wherein R 7 and R 8 independently represent a hydrogen atom or a C 1 to C 12 hydrocarbon group; R 9 represents a C 1 to C 14 hydrocarbon group.