The present invention relates to a process for the production of naso-fibrillar cellulose gels by providing cellulose fibres and at least one filler and/or pigment; combining the cellulose fibres and the at least one filler and/or pigment; and fibrillating the cellulose fibres in the presence of the at least one filler and/or pigment until a gel is formed, as well as the nano-fibrillar cellulose gel obtained by this process and uses thereof.

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section.

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section.

The present invention relates to the use of an anisotropic fluoropolymer having a different intrinsic thermal conductivity in at least two directions as a heat conducting material in a thermally conductive article, to a thermally conductive article comprising said anisotropic fluoropolymer and to a process for the production of said anisotropic fluoropolymer.

The invention provides a method for cutting a composite membrane material, firstly, manufacturing a composite membrane material, the composite membrane material is formed by combining an elastic membrane material with at least one shaping membrane, the elastic membrane material has stretchability and elasticity; the shaping membrane is capable of dissolving in water, and a rigidity thereof is greater than that of the elastic membrane material, and a ductility thereof is lower than that of the elastic membrane material; and cutting the composite membrane material into a plurality of composite filaments with a cutting device, and each of the composite filaments comprises an elastic filament and at least one shaping filament. The composite filament can be used by textile machinery to make textiles. Dissolving the shaping filament in the composite filament is capable of obtaining the elastic filament.

Techniques are described for controlling widths of nanofiber sheets drawn from a nanofiber forest. Nanofiber sheet width can be controlled by dividing or sectioning the nanofiber sheet in its as-drawn state into sub-sheets as the sheet is being drawn. A width of a sub-sheet can be controlled or selected so as to contain regions of uniform nanofiber density within a sub-sheet (thereby improving nanofiber yarn consistency) or to isolate an inhomogeneity (whether a discontinuity is the sheet (e.g., a tear) or a variation in density) within a sub-sheet. Techniques for dividing a nanofiber sheet into sub-sheets includes mechanical, corona, and electrical arc techniques.

Techniques are described for controlling widths of nanofiber sheets drawn from a nanofiber forest. Nanofiber sheet width can be controlled by dividing or sectioning the nanofiber sheet in its as-drawn state into sub-sheets as the sheet is being drawn. A width of a sub-sheet can be controlled or selected so as to contain regions of uniform nanofiber density within a sub-sheet (thereby improving nanofiber yarn consistency) or to isolate an inhomogeneity (whether a discontinuity is the sheet (e.g., a tear) or a variation in density) within a sub-sheet. Techniques for dividing a nanofiber sheet into sub-sheets includes mechanical, corona, and electrical arc techniques.

The present invention relates to a process for the production of nano-fibrillar cellulose gels by providing cellulose fibres and at least one filler and/or pigment; combining the cellulose fibres and the at least one filler and/or pigment; and fibrillating the cellulose fibres in the presence of the at least one filler and/or pigment until a gel is formed, as well as the nano-fibrillar cellulose gel obtained by this process and uses thereof.

The invention relates to a fabric comprising layered composite filaments, wherein the layered composite filaments comprise at least a first biodegradable polymer layer and at least a second biodegradable polymer layer directly adhering to each other, wherein the visual degradation speed of the first biodegradable polymer layer is slower than the visual degradation speed of the second biodegradable polymer layer. The invention further relates to the use of such fabric as temporary weed control, temporary erosion control, as a hygienic article, or temporary packaging material.

The invention relates to a fabric comprising layered composite filaments, wherein the layered composite filaments comprise at least a first biodegradable polymer layer and at least a second biodegradable polymer layer directly adhering to each other, wherein the visual degradation speed of the first biodegradable polymer layer is slower than the visual degradation speed of the second biodegradable polymer layer. The invention further relates to the use of such fabric as temporary weed control, temporary erosion control, as a hygienic article, or temporary packaging material.