| abstract |
There is disclosed a viscoelastic resin composition for vibration damping material containing as essential components a polyester resin having a molecular weight of 5,000 to 50,000 and an acid value of 50 to 500 equivalents/10 6 g, at least 80 mol% of the polycarboxylic acid component of which is an aromatic dicarboxylic acid and, at least 30 mol% of the polyol component of which is a compound of the formula (I):n n wherein R 1 is oxygen or a straight or branched chain C 1 - 6 alkylene group; R 2 is a straight or branched C 1-6 alkylene group; A is a group of the formula: (wherein R 3 is hydrogen or a C 1 - 6 alkyl group); and n is an integer of 1 to 6, an acid anhydride compound having at least two acid anhydride groups in a molecule, and an epoxy compound having at least two epoxy groups in a molecule. |