| abstract |
(57) [Summary] [Problem] The temperature range in which ordinary materials are used is -20 At ~ 120 ° C, a composition having excellent vibration damping properties over a wide temperature and frequency range is obtained. SOLUTION: (a) 15 to 60 parts by weight of a polyvinyl chloride resin, (b) chlorinated polyethylene 1 having a chlorine content of 20 to 45% by weight 5-60 parts by weight, (c) 15-65 parts by weight of epoxidized polyisoprene having a degree of epoxidation of 2-60 mol% (D) scaly or flat filler 30 to 3 parts by weight A composition for a vibration damping material, which is blended with 00 parts by weight. In order to further improve the processability of this composition, coumarone resin is used. Add 10 to 100 parts by weight. |