abstract |
A polymeric antistatic agent suitable for use in a polyester fiber, the antistatic agent is a polyester containing azelaic acid units and 2,2-dimethyl-1,3-propanediol units, and capped polyether units where the cap is (n and X is 12 to 16. The antistatic agent preferably contains tetra alkyl phosphonium isothalate units. Polyester fibers containing these antistatic agents is also disclosed. |