公开(公告)号：US08936855B2

公开(公告)日：2015-01-20

申请号：US13272335

申请日：2011-10-13

申请人： Makoto Kimuro ,  Hiromasa Sinkai ,  Kenji Takeshita

发明人： Makoto Kimuro ,  Hiromasa Sinkai ,  Kenji Takeshita

IPC分类号： B32B23/04

CPC分类号： D21J1/18 ,  Y10T428/249925 ,  Y10T428/31986

摘要： Provided is a wood fiber board, and a production method thereof, such that the wood fiber board contains no phenolic resin, is simple to produce, and exhibits flexural strength and water resistance comparable to those of wood fiber boards produced by incorporating a phenolic resin. The wood fiber board of the present invention has only wood fibers; a polyacrylamide resin being an amphoteric-ionic resin, which has monomers having cationic groups and monomers having anionic groups at a ratio of 7:3 to 3:7 on a mole ratio basis, and which has a molecular weight ranging from 800,000 to 3,000,000; and cationic paraffin. A method of producing a wood fiber board of the present invention involves preparing a slurry to a solids concentration ranging from 2 to 3 wt % and pH of 3 to 5, and adding only the polyacrylamide resin and paraffin to the slurry.

摘要翻译： 本发明提供一种木纤维板及其制造方法，使得木质纤维板不含酚醛树脂，制造简单，并且具有与通过掺入酚醛树脂制造的木纤维板相当的抗弯强度和耐水性。 本发明的木纤维板仅具有木纤维; 具有阳离子基团的单体的聚丙烯酰胺树脂和摩尔比为7:3〜3:7的阴离子性基团的单体，分子量为80万〜300万; 和阳离子石蜡。 本发明的木纤维板的制造方法包括将浆料制备成固体浓度为2〜3重量％，pH为3〜5，仅将聚丙烯酰胺树脂和石蜡加入到浆料中。