| 摘要 |
PURPOSE:To obtain the titled material having high load-bearing capacity and sufficiently high mechanical strength to endure the mechanical action caused by friction and useful for wet-type clutch, brake, etc., by compounding a bismaleimide-type polyimide resin, a rubber and a frictional filler at specific ratios. CONSTITUTION:The objective material can be produced by compounding (A) 2-35(wt)% bismaleimide-type polyimide resin, (B) 3-40% rubber (e.g. epoxy- modified acrylic rubber and (C) 30-85% frictional filler. The filler C is preferably a mixture of one or more components selected from (i) <=70% lubrication component (e.g. graphite), (ii) <=30% mineral substance, (iii) <=25% friction- modifying substance (e.g. barium sulfate) and (iv) <=80% organic, inorganic or metallic fiber or whisker.
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