| 摘要 |
LIGNOCELLULOSIC-BASED COMPOSITE PRODUCTS CONTAINING A PESTICIDAL AMOUNT OF CALCIUM BORATE IS RESISTANT TO ATTACK BY WOOD DESTROYING FUNGI AND INSECTS. THE PREFERRED CALCIUM BORATES ARE THE CALCIUM POLYTRIBORATES HAVING A CAO:B2O3 MOLAR RATIO OF ABOUT 2:3 AND CALCIUM HEXABORATES, HAVING A CAO:B2O3 RATIO OF 1:3. COMPOSITES CAN BE PRODUCED BY COMBINING THE CALCIUM BORATE WITH PARTICLES OF THE LIGNOCELLULOSIC MATERIAL AND AN ADHESIVE RESIN, AND FORMING THE COMPOSITE, GENERALLY WITH HEAT AND PRESSURE.
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