Thermoplastic hardboard from acetylated mat

Details Thermoplastic hardboard from acetylated mat Thermoplastic hardboard from acetylated mat

B - Operations, Transporting

27

N

18/1011, 8/93.56

B27N 5/00 (2006.01) B27N 3/00 (2006.01) C08L 97/02 (2006.01) D21J 1/18 (2006.01)

Patent

CA 1162702

Abstract of the Disclosure A wet-felted mat of wood fibers is acetylated by coating the mat with a quantity of acetic anhydride ranging from 5 to 70% by volume of the mat and heating the mat at a temperature of from 150 to 300° F. while confining substantially all of the acetic anhydride within the mat for about 20 to 120 minutes. The acetylated mat is pressed into hardboard which may be bent into a variety of loops, spirals, helices, and other curvilinear shapes to make articles of furniture, pro- tective packaging products and the like.

390251

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