Hydrocarbyl-substituted phenols in resins for cellulosic composites
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United States of America Patent
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Apr 11, 2006
Grant Date -
May 20, 2004
app pub date -
Mar 12, 2002
filing date -
Apr 4, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Waxy hydrocarbyl substituted phenols or phenates are reacted into phenol formaldehyde resins to impart a waxy water resistant nature to binders. A preferred use of the modified phenol formaldehyde resins is as a binder in engineered wood products such as strand board, particle board, medium density fiberboard, plywood and I-beams. Binding the waxy material into the resin may provide a better dispersion of the waxy moieties and prevent migration as has been seen by the simple addition of waxy materials.
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