EP 0300120 B1 19920506 - SPINNERETTE FOR MELT-SPINNING FILAMENTS
Title (en)
SPINNERETTE FOR MELT-SPINNING FILAMENTS
Publication
Application
Priority
DE 3310521 A 19830323
Abstract (en)
[origin: US4645444A] A melt spinning apparatus is disclosed which is adapted for dividing a molten polymer into a plurality of streams to form synthetic filaments. The apparatus comprises a spin block assembly having two opposite sides, and two separate heating chambers disposed adjacent respective ones of the sides of the spin block assembly. The two heating chambers are interconnected by threaded members, so that the opposing surfaces of the chambers may be drawn together to clampingly engage the opposite sides of the spin block assembly therebetween. The formation of air gaps between the opposing surfaces, and which might hinder the heat transfer between the heating chamber and spin block, are thereby avoided. In one embodiment, the threaded members extend through spacers which are mounted between the heating chambers and between adjacent spin block assemblies, with the spacers being essentially thermally nonconductive, and so that substantially all the heat flow to each spin block assembly is received from the opposing side wall surfaces of the two heating chambers.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0300120 A2 19890125; EP 0300120 A3 19890906; EP 0300120 B1 19920506; DE 3475083 D1 19881215; DE 3485710 D1 19920611; EP 0122464 A2 19841024; EP 0122464 A3 19850502; EP 0122464 B1 19881109; US 4645444 A 19870224
DOCDB simple family (application)
EP 88102682 A 19840314; DE 3475083 T 19840314; DE 3485710 T 19840314; EP 84102785 A 19840314; US 59303484 A 19840323