Patent · US Expired

Process for the production of a multicomponent yarn composed of at least two synthetic polymer components

US4381274A · kind A · utility

30Cited by

34References

11Claims

0Family size

Assignee

Akzona Incorporated · US

Inventors

Erich Kessler · Kelsterbach, DE
Peter Birken · Miltenberg, DE

Key dates

Filing date	Aug 25, 1980
Grant date	Apr 26, 1983
Priority date	—
Expiry date	Aug 25, 2000

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01D5/36
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A multi-component filament consisting of at least two polymer components and having a cross-section in which a matrix component separates several peripherally arranged segments of one or more segment components from each other, and a process for the production of such matrix/segment filaments, wherein the segment component is injected into the matrix component and fed to the spinneret opening in a combined stream with a plurality of segment components separated by the matrix. The multicomponent filament can be drawn to obtain individual microfilaments of less than 1 dtex after splitting, e.g. by false twist texturing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.