发明名称 |
Method of binding lignocellulosic materials |
摘要 |
A low cost method of binding lignocellulosic materials utilizing ammonium based spent sulfite liquor alone as the binder. Hot pressing a mat comprising lignocellulosic material and ammonium spent sulfite liquor at a temperature above 170 DEG C. decomposes the spent sulfite liquor. The decomposition products subsequently condense and polymerize in the presence of lignocellulosic materials to produce a composite product. An exterior grade board can be produced under certain operating conditions. Utilizing the lower molecular weight fraction of the liquor provides a more efficient binder.
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申请公布号 |
US4265846(A) |
申请公布日期 |
1981.05.05 |
申请号 |
US19790082287 |
申请日期 |
1979.10.05 |
申请人 |
CANADIAN PATENTS AND DEVELOPMENT LIMITED |
发明人 |
SHEN, KUO-CHENG;FUNG, DAVID P. C.;CALVE, LOUIS |
分类号 |
C08L97/02;(IPC1-7):B29J5/00 |
主分类号 |
C08L97/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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