Method for producing cellulose shaped-bodies

Details Method for producing cellulose shaped-bodies Method for producing cellulose shaped-bodies

2007-02-13

2007-02-13

Osele, Mark A. (Department: 1734)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C162S009000, C162S182000, C008S116100

Reexamination Certificate

active

10088751

ABSTRACT:
Process for manufacture of cellulose mouldings, such as fibres, filaments, or films, from TCF-bleached or ECF-bleached cellulose, in which the bleached cellulose is dissolved in an aqueous tertiary aminoxide to form a mouldable cellulose, the cellulose solution deforms, and the moulding comes into being by coagulation of the deformed solution, characterized in that, to reduce the cellulose decomposition in the process, TCF-bleached cellulose is used comprising carboxyl group content in the range from 1 to 35 μmol/g or an ECF-bleached cellulose with carboxyl group content in the range from 1 to 50 μmol/g. Cellulose mouldings having a reduced cellulose decomposition may be formed by said process.

REFERENCES:
patent: 4480089 (1984-10-01), Chen et al.
patent: 6409881 (2002-06-01), Jaschinski
patent: 6524348 (2003-02-01), Jewell et al.
patent: 7052540 (2006-05-01), McCreight et al.
patent: 2002/0098317 (2002-07-01), Jaschinski et al.
patent: 2003/0051834 (2003-03-01), Weerawarna et al.
patent: 047929 (1981-09-01), None
patent: WO 97/23666 (1997-07-01), None
Rogowin S.A.: “Chemiefasern”, VEB Fachbuchverlag, Leipzig, 1960 XP-002161407, pp. 168-169.

Affiliated with

Also associated with

Rating

Method for producing cellulose shaped-bodies does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing cellulose shaped-bodies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing cellulose shaped-bodies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3836916