| 摘要 |
<p>The objective of the present invention is to provide a seal ring which has excellent dimensional stability and fit with an opposing member, is able to effectively prevent leakage of oil even at very low hydraulic pressure, and has excellent sliding properties. The seal ring is produced from a resin composition containing (A) a polyphthalamide and (B) at least one species selected from among an elastomer, a cross-linked rubber, and a dynamically cross-linked resin. To the resin composition may also be added (C) at least one type of filler material selected from among carbon fibers, glass fibers, alumina fibers, potassium titanate fibers, boron fibers, silicon carbide fibers, carbon nanotubes, montmorillonite, bentonite, talc, isinglass, mica, molybdenum disulfide, glass beads, graphite, fullerene, anthracite powder, aluminum oxide, titanium oxide, magnesium oxide, potassium titanate, boron nitride, and PTFE powder.</p> |
