Method of preparing biodegradable, water-resistant paper utensils
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United States of America Patent
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-
Apr 8, 1997
Issued Date -
N/A
app pub date -
Jan 9, 1995
filing date -
Dec 27, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of preparing biodegradable water-resistant paper utensils which includes the steps of: (a) preparing a pulp aqueous slurry at a consistency of about 4%; (b) adding surfactant to the slurry; (c) thereafter, adding between 8 and 30 percent weight of a biodegradable and water-resistant agent to the slurry to form a slurry mixture; (d) refining the slurry mixture at a consistency of about 4 percent to a desired drainage; (e) diluting the refined slurry mixture and adding an aggregating agent thereto to form a furnish; and (f) after step (e), forming the furnish to obtain biodegradable, water-resistant paper board or directly a paper utensil. The forming step can be through a hot-press at a temperature of 115.degree. to 170.degree. C.
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Cited Art Landscape
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