Patent · US Expired

Making high filament count fine filament polyester yarns

US5827464A · kind A · utility

2Cited by

26References

11Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

David George Bennie · Castle Hayne, US
Robert J. Collins · Wilmington, US
Hans R. E. Frankfort · Greenville, US
Stephen B. Johnson · Wilmington, US
Benjamin H. Knox · Wilmington, US
Joe Forrest London, Jr. · Greensboro, US
Elmer E. Most, Jr. · Kinston, US
Girish Anant Pai · Matthews, US

Key dates

Filing date	Jun 7, 1995
Grant date	Oct 27, 1998
Priority date	—
Expiry date	Jun 7, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S57/908
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A direct melt spinning process for providing high filament count fine filament polyester yarns having excellent mechanical quality and along-end uniformity and unitary interlace by spinning all the filaments of such high filament count yarn from a single spinneret. Such yarns may be used as direct-use yarns and as draw-feed yarns for preparing drawn flat yarns and draw-textured yarns.

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