Patent · US Expired

Yarns, fibres and filaments that can be fibrillated, method and device for their production

US6830809B2 · kind B2 · utility

0Cited by

3References

33Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Engelbert Loecher · Worms, DE
Helmut Leiner · Blieskastel, DE
Robert Groten · Sundhoffen, FR
Georges Riboulet · Colmar, FR

Key dates

Filing date	Sep 25, 2003
Grant date	Dec 14, 2004
Priority date	—
Expiry date	Sep 25, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2973
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A splittable yarns, fiber or filaments and a method and device for their production. The yarns, fiber or filaments includes at least two elementary filaments of a first polymer A and each second elementary filament is sheathed with a second polymer B.

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