Global Patent Index - EP 1208251 B1

EP 1208251 B1 20031112 - FLASH-SPINNING PROCESS AND SOLUTION

Title (en)

FLASH-SPINNING PROCESS AND SOLUTION

Title (de)

VERFAHREN UND LÖSUNG ZUM FLASH-SPINNEN

Title (fr)

PROCEDE ET SOLUTION DE FILAGE ECLAIR

Publication

EP 1208251 B1 20031112 (EN)

Application

EP 00954137 A 20000818

Priority

  • US 0022729 W 20000818
  • US 15000299 P 19990820

Abstract (en)

[origin: WO0114620A1] A process for the preparation of plexifilamentary film-fibril strands of synthetic fiber-forming polymer comprises the steps of generating a spin fluid and flash-spinning the spin fluid to form plexifilamentary film-fibril strands of the synthetic fiber-forming polymer. The spin fluid consists essentially of (a) 5 to 30 wt.% of a synthetic fiber-forming polymer, (b) a primary spin agent selected from the group consisting of hydrocarbons with 4 to 7 carbon atoms, and chlorinated, brominated and fluorinated compounds, and (c) a co-spin agent co-spin agent selected from the group consisting essentially of fluorinated organic compounds containing 4 to 8 carbon atoms and a double bond, and having an atmospheric boiling point of less than 100 DEG C. The co-spin agent is present in the spin fluid in an amount sufficient to raise the cloud point pressure of the spin fluid by at least 50 pounds per square inch (345 kPa). A spin fluid used in the process of the invention is also provided.

IPC 1-7

D01D 5/11; D01F 6/04; D01F 6/12

IPC 8 full level

D01D 5/11 (2006.01); D01F 6/04 (2006.01); D01F 6/12 (2006.01)

CPC (source: EP KR)

D01D 5/11 (2013.01 - EP KR); D01F 6/04 (2013.01 - EP KR); D01F 6/12 (2013.01 - EP KR)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

WO 0114620 A1 20010301; AU 6647200 A 20010319; CA 2376499 A1 20010301; DE 60006545 D1 20031218; DE 60006545 T2 20040916; EP 1208251 A1 20020529; EP 1208251 B1 20031112; JP 2003507595 A 20030225; JP 3796443 B2 20060712; KR 20020026260 A 20020406

DOCDB simple family (application)

US 0022729 W 20000818; AU 6647200 A 20000818; CA 2376499 A 20000818; DE 60006545 T 20000818; EP 00954137 A 20000818; JP 2001518485 A 20000818; KR 20027002142 A 20020219