PROCESS FOR PRODUCING LINER FOR PRESSURE VESSEL AND LINER MADE OF LIQUID-CRYSTAL RESIN

摘要

A resin composition which is obtained by compounding 99-70 wt.% specific wholly aromatic polyester-amide liquid-crystal resin (A) with 1-30 wt.% epoxy-modified polyolefin resin (B) and melt-kneading the two and which, when examined at a temperature higher by 20°C than the melting point thereof, has a melt viscosity of 60-4,000 Pa·s as measured at a shear rate of 1,000 sec-1 and a melt tension of 20 mN or higher as measured at a pulling rate of 14.8 m/min is melted at a temperature of from the melting point to (the melting point + 40°C) and extruded at a rate of 0.3-5 kg/min, excluding 5 kg/min, to form a parison (P). A pair of molds (30) disposed respectively on both sides of the parison (P) are closed at a given pressure and air is blown into the parison (P).