US 6,204,317 B1 · Method for producing polymeric fibers with improved anti-static properties and fibers and fabrics produced thereby

Abstract

The present invention is directed to a method for producing polymeric fibers with improved anti-static properties and deep dyeability. The method employs anti-static agents that are solid, waxy substances at room temperature. The anti-static agent is pulverized and combined with a carrier to form a dispersion and injected into the throat of a spinning extruder. Polymeric material is added to the extruder and heated with the anti-static agent to form a melt. The melt is then extruded to form the polymeric fiber. Alternatively, the molten anti-static agent is melted and fed through heated lines into a spinning extruder. Polymeric material is added to the extruder and heated with the anti-static agent to form a melt. The melt is then extruded to form the polymeric fiber.

Claims5

Dependent claims

A polymeric fiber containing anti-static agent, wherein the fiber is produced according to the method comprising:

a) forming a nonaqueous dispersion of pulverized N,N-dipolyoxyethylene-N-2 hydroxyalkyl amine antistatic-agent which is a solid waxy material at room temperature with a carrier;
b) injecting the nonaqueous anti-static agent and carrier dispersion into a spinning extruder;
c) adding fiber-forming polymer to the spinning extruder;
d) heating together the anti-static agent and polymer to form a melt in the extruder;
and
e) extruding the melt to form a polymeric fiber containing anti-static agent.

3 more elements

Dependencies are inferred from the claim text.

Method for producing polymeric fibers with improved anti-static properties and fibers and fabrics produced thereby

Life of this patent

Method for producing polymeric fibers with improved anti-static properties and fibers and fabrics produced thereby

Life of this patent

Abstract

Claims5