Process for manufacturing composite products from lignocellulosic materials
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United States of America Patent
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-
Dec 9, 1986
Grant Date -
N/A
app pub date -
Mar 30, 1983
filing date -
Mar 30, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low cost process of making composite products from sugar containing lignocellulosic materials, such as sugarcane bagasse and stalks of sorghum, corn, sunflower, flax, and the like, utilizing the residual sugars as bonding and bulking agent: Comminuted sugar containing lignocellulosic material wholly composed of or partially in combination with other lignocellulosic materials, in the absence of adhesive binders or bonding agents, is molded at a temperature of at least 180.degree. C., and a pressure and for a time sufficient to compound the material into a composite product. The free sugars in lignocellulosic materials act as a thermosetting adhesive binder, and provide both bonding and bulking effect. The composite thus produces possess great strength and excellent dimensional stability. These results are obtained to the greatest extent when the lignocellulosic materials contain higher proportion of sugars.
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