Patent ID: 7569260
Filing Date: 2009-08-04
Classification: C08G,C09K

Abstract:
1. A photosensitive composition comprising: from 30 to 90 percent by weight of an epoxy compound (a) having two or more epoxy groups in a molecule; from 0.1 to 40 percent by weight of a polynuclear phenol compound (b) comprising three to five phenolic aromatic rings, wherein either of the positions ortho to each hydroxyl group is not substituted with any of a methylol group, or an alkyl group or cycloalkyl group having four or more carbon atoms and each of two or more of the phenolic aromatic rings has at least one unsubstituted position ortho to the hydroxyl group; from 0.1 to 10 percent by weight of an energy beam-sensitive cationic polymerization initiator (c); and from 1 to 60 percent by weight of a hydroxyl group-containing compound (d) having one or more hydroxyl groups and one or more of at least one of a vinyl ether group and an oxetanyl group having cationic polymerizability in a molecule.