Patent · US Expired

Process for drawing heated yarns, thereby obtainable polyester fibers, and use thereof

US5538792A · kind A · utility

1Cited by

17References

4Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Ingolf Jacob · Untermeitingen, DE
Josef Geirhos · Bobingen, DE

Key dates

Filing date	Jul 12, 1993
Grant date	Jul 23, 1996
Priority date	—
Expiry date	Jul 12, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2969
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

There is described a particularly gentle and fast process for heating and drawing yarns by passing them contactlessly through a heating apparatus at high speed. Polyester fibers have a tenacity index TI equal to or greater than 50 and a molecular orientation MO equal to or greater than 20 or a compliance COM equal to or less than 12 and a storage modulus index SMI equal to or greater than 100. The polyester fibers of the invention can be used in particular for reinforcing plastics or for producing dimensionally stable textile fabrics.

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