Patent · US Expired

Method for the manufacture of synthetic fibers from a melt mixture based on fiber forming polymers

US6667003B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

Zimmer A.G. · DE

Inventors

Helmut Schwind · Hanau, DE
Werner Ude · Darmstadt, DE
Wolfgang Janas · Geiselbach, DE
Alexander Klein · Troisdorf, DE
Bernd Kretschmann · Kronberg, DE

Key dates

Filing date	May 10, 2001
Grant date	Dec 23, 2003
Priority date	—
Expiry date	Mar 12, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2913
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a method for the manufacture of synthetic fibers from a melt mixture of fiber forming matrix polymers, wherein at least one second amorphous additive polymer, which is immiscible with the fiber forming matrix polymer, is added to the fiber forming matrix polymers in a quantity of 0.05-5 wt % (with reference to the total weight of fiber forming matrix polymer and the additive copolymer). The additive polymer is obtained by multiple initiation. Furthermore, the present invention also relates to the synthetic fibers produced by the method.

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