| 摘要 |
PURPOSE:To obtain the title composition containing each specific thermotropic liquid crystal, globular glass-like carbon and graphite at specific ratios and usable also in sliding position under severe conditions of high speed and load, especially using a metal as the opposite material. CONSTITUTION:The aimed composition containing (A) 87-40 wt.%(preferably 77-55 wt.%) thermotropic liquid crystal polymer which is a (co)polymer (preferably wholly aromatic polyester) containing at least a monomer unit expressed by the formula, (B) 10-50 wt.% (preferably 20-40 wt.%) globular glass-like carbon obtained by carbonizing a thermosetting resin at >= 420 deg.C (preferably >= 550 deg.C) and (C) 3-40 wt.% ( preferably 3-20 wt.%) graphite. |
