Abstract: A product is disclosed. The product may comprise a layer formed at least partially of a mixture comprising a reinforcing component and at least 10% (w/w) of cellulose fibers having surface-closing proper-ties.

Abstract: A multilayer product is disclosed. The multi-layer product may include a cellulose fiber-based base layer and a barrier layer. The barrier layer may include at least 10% (w/w) of hydrolysed cellulose fibers.

Abstract: A method for preparing a thermoplastic composition comprising grafted cellulose and optionally grafted hemicelluloses is disclosed. The method comprises providing a composition comprising cellulose and optionally hemicelluloses; dissolving the cellulose and optionally the hemicelluloses of the composition at least partially, thereby obtaining a solution comprising the solubilized cellulose and optionally the solubilized hemicelluloses; extruding the cellulose and optionally the hemicelluloses into a shape, such as a filament, a bead, a 3D object, or a molded product; and treating the shape with a cyclic ester monomer, such that the cyclic ester monomer reacts with the cellulose and optionally the hemicelluloses contained in the shape, thereby grafting the cellulose and optionally the hemicelluloses with the cyclic ester monomer at least partially, thereby obtaining the thermoplastic composition.

Abstract: A method for preparing a thermoplastic composition comprising grafted cellulose and/or hemicelluloses is disclosed. The method may comprise reacting a cyclic ester monomer with cellulose and/or hemicelluloses, thereby grafting the cellulose and/or hemicelluloses with the cyclic ester monomer at least partially, and thereby forming the thermoplastic composition.

Abstract: A method for preparing a thermoplastic composition comprising grafted cellulose and optionally grafted hemicelluloses is disclosed. The method comprises providing a composition comprising cellulose and optionally hemicelluloses; dissolving the cellulose and optionally the hemicelluloses of the composition at least partially, thereby obtaining a solution comprising solubilized cellulose and optionally solubilized hemicelluloses; adding a cyclic ester monomer to the solution, such that the cyclic ester monomer reacts with the solubilized cellulose and optionally the solubilized hemicelluloses, thereby grafting the solubilized cellulose and optionally the solubilized hemicelluloses with the cyclic ester monomer at least partially; and coagulating the grafted cellulose and optionally the grafted hemicelluloses, thereby obtaining the thermoplastic composition.

Abstract: The invention relates to method for producing viscosity controlled cellulosic material having a viscosity value in a range between 150 ml/g and 500 ml/g in a continuous process, the method comprising the following steps: i) forming a cellulose-water mixture (15) comprising water and chemically treated wood-based cellulosic material, the cellulose-water mixture (15) having a dry matter content between 3% and 20%, ii) treating the formed cellulose-water mixture (15) in a plasticization step (100) at a temperature between 130° C. and 200° C., and a pressure between 3 bars and 15 bars, at least 5 minutes and 120 minutes at the most, while mixing the cellulose-water mixture (15), and feeding hot water and/or water steam to the cellulose-water mixture, thereby obtaining a treated mixture (18), and iii) depressurizing the treated mixture (18) in a depressurizing step (105) in a controlled manner, thereby obtaining the viscosity controlled cellulosic material (20).