TREATMENT OF LIGNOCELLULOSIC MATERIAL WITH PHTHALIC ANHYDRIDE AND THERMOSETTING RESIN

摘要

This invention relates to a process for modifying lignocellulosic materials by a chemical treatment comprising treating the material sequentially or simultaneously with phthalic anhydride and a thermosetting resin at elevated temperature, and finally heat curing the phthalylated, resin-impregnated product. The lignocellulosic material so produced can be formed into shapes or moulds having excellent dimensional stability.