Patent · US Expired

Process for the production of high-shrinkage wet-spun acrylic fibres or filaments

US4067948A · kind A · utility

8Cited by

1References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ulrich Reinehr · Dormagen, DE
Alfred Nogaj · Dormagen, DE
Toni Herbertz · Dormagen, DE

Key dates

Filing date	Jul 16, 1976
Grant date	Jan 10, 1978
Priority date	—
Expiry date	Jul 16, 1996

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F6/38
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for the production of high-shrinkage wet-spun acrylic fibres having good fibre strength and high densities by fixing the unstretched fibres with saturated steam and then stretching in a ratio of from 1:3,5 to 1:5.

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