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Wood particle board and a method of making the same

阅读:603发布:2022-06-02

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1. A WOOD PARTICLE BOARD CHARACTERIZED BY: (A) A DENSITY OF FROM ABOUT 30 TO 65 POUNDS PER CUBIC FOOT, (B) A THICKNESS FROM ABOUT 1/4 TO 1 1/2 INCHES, (C) AN INTERNAL BOND OF FROM ABOUT 50 TO 160 POUNDS PER SQUARE INCH, AND (D) A MODULUS OF RUPTURE OF FROM ABOUT 400 TO 4,000 POUNDS PER SQUARE INCH, SAID PARTICLE BOARD HAVING LESS THAN 23 PARTS BY WEIGHT OF WATER AND HAVING FROM ABOUT 10 TO 25 PARTS BY WEIGHT OF BINDER SOLIDS PER 100 PARTS BY WEIGHT OF DRY WOOD PARTICLES; SAID BINDER SOLIDS CONSISTING OF FROM ABOUT 4 TO 7 MOLES OF MGO, HAVING AN IODINE NUMBER OF FROM ABOUT 7 TO 17, PER MOLE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF MGCL2, MGSO4 AND MGBR2.
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