Method for reducing the content of organic solvent in cellulose-

Details Method for reducing the content of organic solvent in cellulose- Method for reducing the content of organic solvent in cellulose-

1998-02-23

2000-06-13

Cintins, Ivars

Paper making and fiber liberation

Processes and products

Non-fiber additive

210691, 210694, 210767, D21H 1717

Patent

active

060745290

ABSTRACT:
The present invention generally relates to a method for reducing the content of organic solvent in an aqueous dispersion of a cellulose-reactive hydrophobing agent, prepared by emulsifying a molten cellulose-reactive hydrophobing agent containing organic solvent in an aqueous solution containing one or more emulsifying agents. The method comprises contacting the aqueous dispersion under agitation with a sorbent, said sorbent having the capacity of absorbing organic molecules, or a gas, whereby the solvent is transferred to the sorbent or the gas.

REFERENCES:
patent: 2369919 (1945-02-01), Sauer
patent: 4522686 (1985-06-01), Dumas
Derwent Abstract, JP 63264544, dated Nov. 1, 1988.

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