Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1994-03-14
1997-12-16
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
26421114, 26421116, 264237, D01F 224
Patent
active
056981511
ABSTRACT:
To prepare cellulose fibres, a solution of cellulose in a tertiary amine-oxide is shaped in hot condition to give filaments, the filaments are cooled and then introduced into a precipitation bath in order to precipitate the dissolved cellulose, whereby the shaped solution is exposed to an essentially laminar gas stream (FIG. 2a) for cooling before introduction into the precipitation bath.
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Ecker Friedrich
Jurkovic Raimund
Ruf Hartmut
Schwenninger Franz
Zikeli Stefan
Lenzing Aktiengesellschaft
Tentoni Leo B.
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