Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1996-10-30
1998-08-18
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
264 83, 264561, 264562, B29C 4788
Patent
active
057955239
ABSTRACT:
The present invention relates to an improved method for producing tubular sausage casings of regenerated cellulose wherein viscose is extruded through an annular extrusion die submerged in an aquarium to form a tubular product and coagulation and regeneration of the tubular product is initiated in said aquarium, continued by spray application of an intermediate regenerating solution in an intermediate regeneration zone after the tubular product has exited the aquarium, and completed in one or more coagulation/regeneration baths which includes the step of heating the tubular product to a temperature above the boiling point of carbon bisulphide in the intermediate reaction zone.
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Alfacel s.a.
Eashoo Mark
Silbaugh Jan H.
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