Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With formation of web or article
Patent
1994-09-02
1996-05-28
Lacey, David L.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With formation of web or article
162 9, 1621647, 162224, 162225, 162 76, 264128, 1563073, 428283, 428326, D21J 300, B27D 100
Patent
active
055207774
ABSTRACT:
In manufacturing fiberboard, it is known to press mixtures of lignocellulosic material and binding agents to form a board product. In this invention, an improved process for manufacturing fiberboard is disclosed including the step of adding a solution of maleic anhydride and glycerol to the lignocellulosic material prior to refining thereof. The binder used is preferably phenolic-formaldehyde resin, in which case post-heating may be beneficial.
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T. Anazawa and K. Yamagishi--"Production of Dimensionally Stable Particleboard--Chemical Treatment with Maleic Acid Glycerol Mixture," Hokkaido Forest Products Research Institute, vol. 1, No. 7, 1987--Translation.
Fortuna Jos'e A.
Lacey David L.
Midnorth Forest Industry Alliance Inc.
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