Method for reducing the content of organic solvent in cellulose-reactive hydrophobing agents
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United States of America Patent
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Jun 13, 2000
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N/A
app pub date -
Feb 23, 1998
filing date -
Feb 15, 1993
priority date (Note) -
Expired
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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.
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