METHOD OF SOLID MOLDED BODIES OR FILMS PRODUCING Russian patent published in 2016 - IPC D01D5/06 D01F2/00 C08J3/09 C08J5/18 

Abstract RU 2603364 C2

FIELD: pulp and paper industry.

SUBSTANCE: invention relates to method of solid cellulose molded bodies making, in particular films, from cellulose solution by extrusion, in particular, to polymer solutions or polymer liquids forming. Method of solid cellulose molded bodies producing from cellulose solution, NMMO (N-methyl-morpholine-N-oxide) and water by this solution extrusion through one or more extrusion holes under pressure and cellulose molded bodies curing in receiving bath, wherein solution is supplied between extrusion holes and receiving bath via air gap, is characterized by, that temperature of solution in extrusion holes is less than 105 °C and difference in pressure between pressure solution immediately before extrusion and after extrusion in air gap is 8-40 bar.

EFFECT: method allows to improve spinning quality.

34 cl, 5 dwg, 1 tbl

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RU 2 603 364 C2

Authors

Tsikeli Stefan

Ekker Fridrikh

Dates

2016-11-27Published

2012-09-03Filed