Process for the manufacture of lignocellulosic fibreboard
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United States of America Patent
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Issued Date -
Jun 3, 2021
app pub date -
Nov 30, 2020
filing date -
Nov 30, 2020
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Abstract
A process for the manufacture of lignocellulosic fiber-based insulation boards that includes: applying a binder composition to lignocellulosic fibers; forming a lignocellulosic fiber mat by compressing the lignocellulosic fibers impregnated with the binder composition; and heating the compressed lignocellulosic fiber mat so as to obtain a lignocellulosic fiberboard bound by an insoluble and infusible thermoset binder, where the binder composition is an emulsion of a poly(methylene diphenyl isocyanate) (pMDI) in an aqueous phase comprising water and a polyol in dissolved form.
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