Phosphorylated lignocellulosic fibers, uses and processes of preparation thereof
Assignee3R Valo, S.E.C.
InventorsDan Belosinschi, François Brouillette, Ying Shi, Jean Paradis, Josée Doucet
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Abstract
The present disclosure relates to lignocellulosic materials comprising phosphorylated lignocellulosic fibers having an ionic charge in water of about 4000 to about 7000 mmoles/kg, and processes for the preparation thereof. The process comprises reacting lignocellulosic fibers of a lignocellulosic material with a phosphate ester in the presence of urea. The present disclosure further relates to compositions comprising a phosphate ester and at least one of a defoamer and a viscosity reducer or at least one of a C1-C12 alcohol and an ester of a carboxylic acid.
Claims20
A lignocellulosic material comprising phosphorylated lignocellulosic fibers, wherein said fibers have an ionic charge in water of about 4000 to about 7000 mmoles/kg, wherein said fibers have an average fiber length of about 0.5 to about 5 mm;
- and wherein said material has an elemental phosphorus content of about 9 to about 15% (w/w).
Dependencies are inferred from the claim text.