发明授权
- 专利标题: Process for producing woody moldings
- 专利标题(中): 生产木制品的方法
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申请号: US21984申请日: 1987-03-05
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公开(公告)号: US5055247A公开(公告)日: 1991-10-08
- 发明人: Minoru Ueda , Hideaki Matsuda , Masanori Hara , Koichi Murakami
- 申请人: Minoru Ueda , Hideaki Matsuda , Masanori Hara , Koichi Murakami
- 申请人地址: JPX
- 专利权人: Okura Kogyo Kabushiki Kaisha
- 当前专利权人: Okura Kogyo Kabushiki Kaisha
- 当前专利权人地址: JPX
- 优先权: JPX58-26981 19830222
- 主分类号: B27N3/02
- IPC分类号: B27N3/02 ; B27N1/00 ; B27N3/00 ; C08H8/00
摘要:
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.
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