RESIN COMPOSITION FOR CONSTANT-VELOCITY JOINT BOOT FOR AUTOMOBILE AND CONSTANT-VELOCITY JOINT BOOT FOR AUTOMOBILE

摘要

PROBLEM TO BE SOLVED: To provide a constant-velocity joint boot for automobiles, capable of carrying out assembling operation to a joint part in an automobile manufacturing process, etc., extremely readily in a short time, much higher in durability in practical use after assembly due to excellent wear resistance and to obtain a resin composition having both flexibility and wear resistance suitable for the joint boot. ;SOLUTION: This polyester elastomer resin composition is obtained by blending 100 pts.wt. of a polyester (A) with 0.05-7.0 pts.wt. of an organic polyisocyanate (B) and 0.1-5.0 pts.wt. of a silicone compound (C) in a melt state and has 34-44 surface hardness (shore hardness D). The composition is molded into a fixed shape by a blow molding to give the objective molding.;COPYRIGHT: (C)1997,JPO