Patent · US Expired

Process for the production of bifilar acrylic fibres

US4124673A · kind A · utility

7Cited by

4References

12Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Christian Pieper · Neuss, DE
Karlheinz Feltgen · Dormagen, DE
Alfred Nogaj · Dormagen, DE

Key dates

Filing date	Feb 15, 1977
Grant date	Nov 7, 1978
Priority date	—
Expiry date	Feb 15, 1997

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F8/08
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for the production of bifilar fibres and filaments consisting of only one acrylonitrile polymer. The polymer is dissolved in a usual solvent and the resulting solution is divided up into two solution streams. After these solution streams have been brought to different temperatures they are spun by a conventional bifilar spinning technique.

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