EP 0008853 B1 19820804 - PROCESS FOR MELT SPINNING ACRYLONITRILE POLYMER FIBRES
Title (en)
PROCESS FOR MELT SPINNING ACRYLONITRILE POLYMER FIBRES
Publication
Application
Priority
- US 93819678 A 19780830
- US 93819778 A 19780830
- US 93820278 A 19780830
Abstract (en)
[origin: EP0008853A1] The invention provied a process for melt spinning acrylonitrile polymer fibers in which fusion melts of acrylonitrile polymer and water are melt-spun through spinnerettes of high capillary density without sticking together of the individual filaments. High capillary density may be obtaining by closer spacing of conventional counterbores and capillaries, by using closely spaced counterpores and capillaries of smaller size, or by providing multiple capillaries per counterbore. The fusion melt is extruded through the spinnerette directly into a steam-pressurized solidification zone maintained under conditions such that the rate of release of water from the nascent extrudate avoids deformation thereof.
IPC 1-7
IPC 8 full level
CPC (source: EP)
D01D 4/02 (2013.01); D01D 5/088 (2013.01); D01F 6/18 (2013.01)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0008853 A1 19800319; EP 0008853 B1 19820804; AR 222340 A1 19810515; BR 7905093 A 19800429; DE 2963480 D1 19820930; ES 483587 A1 19800301; GR 72246 B 19831004; PT 69989 A 19790801; TR 21320 A 19840301
DOCDB simple family (application)
EP 79301311 A 19790706; AR 27733879 A 19790717; BR 7905093 A 19790808; DE 2963480 T 19790706; ES 483587 A 19790823; GR 790159530 A 19790706; PT 6998979 A 19790726; TR 2132079 A 19790821