Patent · US Expired

Method for the production of melt-spun and molecular-oriented drawn, crystalline filaments

US4369155A · kind A · utility

13Cited by

7References

14Claims

0Family size

Assignee

Akzona Incorporated · US

Inventors

Diederich Schilo · Klingenberg, DE
Hans-Dieter Achtsnit · Elsenfeld, DE
Gerhard Klug · Elsenfeld, DE

Key dates

Filing date	Jun 23, 1980
Grant date	Jan 18, 1983
Priority date	—
Expiry date	Jun 23, 2000

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02J1/22
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Production of drawn dilaments by cooling freshly spun filaments at a temperature below the setting point and taking them off at 3500 m/min while passing them over heated surfaces, such heated surfaces being 20 to 300 mm long heated to from 450.degree. to 650.degree. C. and arranged at a distance of from 1500 to 6500 mm from the spinneret.

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