Patent · US Expired

Device for the preparation of cellulose mouldings

US5798125A · kind A · utility

7Cited by

35References

8Claims

0Family size

Assignee

LENZING AKTIENGESELLSCHAFT · AT

Inventors

Stefan Zikeli · Regau, AT
Ernst Rauch · Neumarkt am Wallersee, AT
Hermann Koberger · Zipf, AT
Friedrich Ecker · Vöcklabruck, AT
Hartmut Ruf · Rötteln, DE
Raimund Jurkovic · Lenzing, AT
Franz Schwenninger · Lenzing, AT

Key dates

Filing date	Jun 6, 1995
Grant date	Aug 25, 1998
Priority date	—
Expiry date	Jun 6, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2301/02
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Apparatus for the preparation of cellulose fibers from a solution of cellulose in a tertiary amine oxide includes a spinneret having a multiplicity of spinning holes arranged essentially in a ring-shape. An inlet for cooling gas is positioned in the center of the ring-shape arrangement of the spinning holes and immediately downstream of the spinning holes. The inlet comprises a tube having a baffle plate at one end.

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