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    • 91. 发明授权
    • Process for producing woody moldings
    • 生产木制品的方法
    • US5055247A
    • 1991-10-08
    • US21984
    • 1987-03-05
    • Minoru UedaHideaki MatsudaMasanori HaraKoichi Murakami
    • Minoru UedaHideaki MatsudaMasanori HaraKoichi Murakami
    • B27N3/02B27N1/00B27N3/00C08H8/00
    • C08H8/00
    • An industrially advantageous woody molding is produced by adding a dibasic acid anhydride to a woody material such as a wood meal in the presence or absence of a catalyst such as sodium carbonate, whereby the dibasic acid anhydride is bonded to the hydroxy group of the woody material to form an esterified woody material, adding thereto a compound having at least two epoxy groups in the molecule thereof, kneading well the mixture, and then heat and press molding the kneaded mixture at a temperature higher than 120.degree. C. and a pressure greater than 60 kg/cm.sup.2.The product thus obtained by the process of this invention has a smooth and lustrous surface, has good water resistance and dimensional stability, and also is excellent in mechanical strength and hardness.
    • 在存在或不存在催化剂如碳酸钠的情况下,通过将二元酸酐加入木质材料如木粉中制备工业上有利的木质成型体,由此二元酸酐与木质材料的羟基键合 形成酯化的木质材料,在其分子中加入具有至少两个环氧基的化合物,充分捏合混合物,然后在高于120℃的温度和大于120℃的压力下加热和压制捏合的混合物 60 kg / cm2。 通过本发明的方法得到的产品具有光滑光泽的表面,具有良好的耐水性和尺寸稳定性,并且机械强度和硬度也优异。