SOUND DEADENING MATERIAL

摘要

A sound deadening material for use in the automotive and other manufacturing industries comprising bitumen (in proportion from 5 to 25 % by weight), a filler (in proportion from (10 to 80 % by weight), aluminium trihydrate (in proportion from 0 to 25 % by weight), stearic acid (in proportion from 0.5 to 3 % by weight), nitrile rubber or polychloroprene (in proportion from 1 to 10 % by weight), terpene resin or other tackifier (in proportion from 1 to 10 % by weight), and a coupling agent (in proportion from 0.01 to 2 % by weight).