Use of aqueous NaOH/thiourea solution in pilot-scale...

Details Use of aqueous NaOH/thiourea solution in pilot-scale... Use of aqueous NaOH/thiourea solution in pilot-scale...

2011-07-19

2011-07-19

Crispino, Richard (Department: 1747)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S17800F, C264S187000

Reexamination Certificate

active

07981337

ABSTRACT:
The present invention relates to the use of an aqueous sodium hydroxide/thiourea solution, specifically to the use of an aqueous sodium hydroxide/thiourea solution for pilot-scale production of cellulose products, wherein sodium hydroxide constitutes 8.1%-12.0% of the total weight of the aqueous solution, thiourea constitutes 3.0%-6.0% of the total weight of the aqueous solution, and said cellulose products include regenerated cellulose filaments, films, nonwovens, as well as composite fibers and/or functional materials of protein/cellulose, chitin/cellulose, Konjac Glucomannan/cellulose, nano-crystal particle/cellulose, etc.

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