Patent · US Expired

Flash spinning process and flash spinning solution with azeotropes

US6319970A · kind A · utility

3Cited by

6References

5Claims

0Family size

Assignee

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

Inventors

Hyunkook Shin · Wilmington, US
Roger Keith Siemionko · Hockessin, US
Nanlin Deng · Richmond, US

Key dates

Filing date	Sep 29, 2000
Grant date	Nov 20, 2001
Priority date	—
Expiry date	Sep 29, 2020

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F6/32
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A spinning process using azeotropic compounds as spin agents having essentially zero ozone depletion potential and that are either non-flammable or of very low flammability.

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