Process for the production of cellulose fibres

Details Process for the production of cellulose fibres Process for the production of cellulose fibres

1995-06-05

1997-02-11

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421114, D01F 202, D01F 1102, D06M 13144

Patent

active

056017715

ABSTRACT:
The invention is concerned with a process for the production of cellulose fibres, wherein a solution of cellulose in an aqueous tertiary amine-oxide is extruded into filaments through spinning holes of a spinneret and the extruded filaments are conducted across an air gap into a substantially aqueous precipitation bath, characterized in that the extruded filaments, while being conducted across the air gap, are contacted with an aliphatic alcohol which is present exclusively in gaseous state. The process according to the invention produces cellulose fibres having a very reduced tendency to fibrillation.

REFERENCES:
patent: 4246221 (1981-01-01), McCorsley, III
patent: 4261943 (1981-04-01), McCorsley, III
patent: 4416698 (1983-11-01), McCorsley, III
Translation of U.S.S.R. 1,331,914 (Published Aug. 23, 1987).
Chanzy et al., Tappi 5th Int'l Dissolving Pulp Conf., pp. 105-108 (1980).
Dube, M., "Precipitation and Crystallization of Cellulose from Amine Oxide Solutions", Tappi International Dissolving and Specialty Pulps Proceedings (1983).
S. Mortimer lecture at Cellucon Conference (1993).
Quenin, I., "Precipitation de la cellulose a partir de solutions dans les oxydes d'amines tertiaires" (1985).
Weigel, P. et al., "Structure formation of cellulosic fibres from aminoxid solvents", Seminar in Stockholm (1994).

Affiliated with

Also associated with

Rating

Process for the production of cellulose fibres does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of cellulose fibres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of cellulose fibres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-339408