抄録
The wood of Hinoki (thickness 1mm.) was acetylated at 30°C. with acetic anhydride, zinc chloride and acetic acid to decrease its swelling and shrinkage and the suitable conditions of treating time and additional weight of zinc chloride to 150cc. of acetic anhydride and 200 cc, of acetic acid were researched. The results of the study are as follows;
(1) The suitable treating conditions are indicated in the following table.
(2) The samples treated with above-mentioned conditions indicate increasing weight of from twenty and several to forty percent, and their effects of moisture-proof are ahrnyt three times as compared with untreated one.
