Method for producing shaped bodies

Details Method for producing shaped bodies Method for producing shaped bodies

2005-04-19

2005-04-19

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

C264S029200, C264S029600, C264S029700, C264S171260, C264S171270, C264S172150, C264S173110, C264S185000, C264S186000, C264S187000, C264S203000, C264S211000, C264S561000, C264S562000

Reexamination Certificate

active

06881361

ABSTRACT:
The invention relates to a method for producing shaped bodies, especially threads or foils, from at least one polymer of the groups consisting of polysaccharide, polysaccharide derivative or polyvinyl alcohol by forming a solution of the polymer that contains an additive in a solvent containing amine-N-oxide, extruding the solution and precipitating the extrudate by contacting with a coagulant. The invention is characterized in that at least two polymeric solutions are formed. At least one of the two polymeric solutions contains one or more finely distributed additives and the at least two polymeric solutions are simultaneously extruded forming a combined extrudate.

REFERENCES:
Vorbach, D., & Taeger, E., “Properties of carbon filled cellulose filaments.” Chemical Fibers International. vol. 48, pp. 120-122, Apr. 1998.

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