Production of hardboard
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United States of America Patent
Stats
-
Oct 14, 1980
Grant Date -
N/A
app pub date -
Jul 2, 1979
filing date -
Jul 2, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for improving the strengths and resistance to water absorption of wood fiber hardboard, along with a lessening in the number of conventional steps, is disclosed. Hardboad is thereby produced by a process wherein drying oil is added to the wood chips prior to the pulp preparation stage; and optionally an oxidation accelerator is added during the pulp preparation stage. The hardboard is then formed in the usual manner without requiring the conventional addition of binder ingredients in the stock chest, without requiring conventional baking following pressing and, in the case of 'tempered' hardboard without requiring the subsequent addition of tempering materials and baking following the conventional press operation.
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