Method of manufacturing modified wood material
AssigneeMatsushita Electric Works, Ltd.
InventorsShozo Hirao, Hiroaki Usui, Yoshihiro Ohta, Takashi Nakai, Hiroyuki Ishikawa, Satoru Konishi
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Abstract
A method of manufacturing a modifed wood material can fix within a raw wood material an insoluble, non-flammable inorganic compound with a highly efficient reaction achieved between cations and anions by sequentially immersing the raw wood material at least three times alternately in each of, and different one from that employed immediately before of a first water-soluble inorganic substance solution containing cations and a second water-soluble inorganic substance solution containing anions.
Claims7
A method for making a modified wood material, comprising alternately immersing a raw wood material in two types of solutions, a cation-containing solution and an anion-containing solution, the cations and anions being such as to form a non-flammable, water-insoluble, inorganic compound within the raw wood material, wherein said raw wood material is alternately immersed a total of at least three times in one of said two types of solutions and then in the other of said two types of solution and wherein the solution employed for the third immersing is made higher in concentration than that used for the first immersing.
Dependencies are inferred from the claim text.