BINDER COMPOSITIONS COMPRISING LIGNIN DERIVATIVES
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United States of America Patent
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app pub date -
Aug 13, 2012
filing date -
Feb 15, 2010
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Abstract
The present disclosure provides an adhesive composition comprising derivatives of native lignin and an isocyanate-based binder such as methylene diphenyl diisocyanate. The present compositions may further comprise formaldehyde-based resins such as PF, UF, and MF. While not wishing to be bound by theory, it is believed that incorporating derivatives of native lignin in isocyanate compositions will reduce incidence of pre-curing.
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