Waste liquor derived from chemical thermal pulping of particle boards and fibreboards containing bonding agents
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United States of America Patent
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-
Jan 6, 1998
Grant Date -
N/A
app pub date -
Oct 7, 1994
filing date -
Oct 8, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns the waste liquor from the chemical-thermal pulping of fibre boards and particle boards containing bonding agents. The waste liquor is produced through a procedure in which fibre boards and wood particle boards are first chopped into shreds and, in a subsequent step, pulped according to a chemical-thermal procedure which dissolves the wood structure. The liquid remaining after the separation of the cellulose is retained as waste liquor and used as extender for wood adhesives.
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Cited Art Landscape
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