Method of forming composite particle products
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United States of America Patent
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Sep 21, 1999
Issued Date -
N/A
app pub date -
Feb 14, 1997
filing date -
Nov 27, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention attains the foregoing and other objects of the invention by providing a method of forming a composite particle product from ligno-cellulosic material bonded together with water-insoluble lignin. The lignin has a relatively low molecular mass, e.g., less than 10,000 Daltons, and has a relatively high number of reactive functional groups. The lignin and material is then heated and compressed to promote bending and cross-linking between the lignin binder and the ligno-cellulosic material.
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