Patent · US Expired

Process for the production of highly shrinkable split tows of acrylonitrile polymers

US4434530A · kind A · utility

6Cited by

7References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ralf Miessen
Hans Wilsing · Dormagen, DE
Fritz Schultze-Gebhardt · Dormagen, DE

Key dates

Filing date	Mar 5, 1981
Grant date	Mar 6, 1984
Priority date	—
Expiry date	Mar 5, 2001

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01G1/08
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

High-shrinkage stretch-broken tows of acrylonitrile polymers are obtained by fixing with saturated steam at maximum temperatures of 140.degree. C. after drawing and before stretch breaking and stretch breaking at a draft of at least 30%.

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