Interconnected microcellular material made of industrial lignin and method for preparing same
AssigneesCentre National De La Recherche Scientique (Cnrs), Universite De Bordeaux
InventorsHerve Deleuze, Claire Forgacz, Marc Birot
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Abstract
An interconnected microcellular material, a method for preparing said material using low-value waste from the paper industry, such as industrial lignin, and the use thereof for the production of items such as catalysts, filters or absorbent elements.
Claims23
Method for the preparation of an interconnected microcellular material by polymerization of a concentrated emulsion comprising:
- an external dispersion phase comprising, in a solvent, a surfactant and a solution comprising at least one polymerizable monomer contained in industrial lignin, and
- an internal dispersed phase comprising a solvent that is immiscible with said polymerizable monomer and/or with the solvent of the external dispersion phase.
A concentrated emulsion comprising at least one polymerizable monomer contained in industrial lignin for the preparation of an interconnected microcellular material.
Emulsion which is useful for the preparation of an interconnected microcellular material, which comprises:
- an external dispersion phase comprising, in a solvent, a surfactant and a solution comprising at least one polymerizable monomer contained in industrial lignin, and
- an internal dispersed phase comprising a solvent that is immiscible with said polymerizable monomer and/or with the solvent of the external dispersion phase.
Dependencies are inferred from the claim text.