Abstract: Providing composite structures with micro contoured surface layer. There is provided a method to adjust roughness level of micro contoured surface layer when manufacturing a composite and products thereof. The micro contoured surface layer may cover all or at least part of the surface area of the composite product. The roughness level of micro contoured surface layer may be increased or decreased by controlling the process parameters. In particular, there is provided a method to increase the roughness level of composite material having a primary surface layer with a primary surface roughness by softening the primary surface layer of the composite material by heating and providing a secondary surface layer of the composite material surface with a secondary surface roughness by cooling the softened surface layer. Further, there are provided methods to determine and visualize the level of micro contoured surface layer roughness on a composite product surface.

Abstract: The invention relates to a method for reducing the viscosity of a nanofibrillar cellulose hydrogel, wherein the method comprises mixing a nanofibrillar cellulose hydrogel with an aqueous growth medium for cell culture, wherein the aqueous growth medium contains one or more salts and optionally one or more sugars, using shearing forces so that a homogeneous dispersion is formed. The invention further relates to a dispersion comprising a nanofibrillar cellulose hydrogel and an aqueous growth medium for cell culture and to a use of an aqueous growth medium.

Abstract: One embodiment provides a method for preparing a medical product, said method comprising providing an aqueous dispersion of nanofibrillar cellulose, providing a layer of gauze, impregnating the layer of gauze with the aqueous dispersion of nanofibrillar cellulose, and dewatering the impregnated gauze, to obtain the medical product. One embodiment provides a medical product comprising a layer of gauze impregnated with nanofibrillar cellulose.

Abstract: The application relates to a composition and manufacturing and a use of a composite structure having vibrational properties and to a product thereof. According to an embodiment a composition comprises a matrix material and organic natural fiber material, wherein speed of sound is arranged to be different in different directions in the composition.

Abstract: The invention relates to a composite comprising matrix material and organic natural fiber material. The composite may be a compound, a granulate, or at least a part of a sound reproduction device. The composite may be made by injection molding. According to an embodiment a composite comprises matrix material and organic natural fiber based material, wherein the matrix material comprises a thermoplastic polymer matrix. The composite may comprise a relative sound wave resistance of 1500-5000. The composite may comprise a relative damping of sound radiation of 1.5-5.0. The composite may comprise a dynamic modulus of 2000-11000 measured according to ISO 6721-3. The composite may comprise a relative acoustic quality factor of 5-200. The composite may comprise a relative factor of viscous damping of 0.500-0.005.

Abstract: The invention relates to a method for reducing the viscosity of a nanofibrillar cellulose hydrogel, wherein the method comprises mixing a nanofibrillar cellulose hydrogel with an aqueous growth medium for cell culture, wherein the aqueous growth medium contains one or more salts and optionally one or more sugars, using shearing forces so that a homogeneous dispersion is formed. The invention further relates to a dispersion comprising a nanofibrillar cellulose hydrogel and an aqueous growth medium for cell culture and to a use of an aqueous growth medium.

Abstract: The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and bulk density of the organic natural fiber material is less than 500 kg/m3. The method further comprises forming a composite product comprising the mixture. Further, the invention relates to a composite product, a use of the composite product, and a system for manufacturing a composite product.

Abstract: Providing composite structures with micro contoured surface layer. There is provided a method to adjust roughness level of micro contoured surface layer when manufacturing a composite and products thereof. The micro contoured surface layer may cover all or at least part of the surface area of the composite product. The roughness level of micro contoured surface layer may be increased or decreased by controlling the process parameters. In particular, there is provided a method to increase the roughness level of composite material having a primary surface layer with a primary surface roughness by softening the primary surface layer of the composite material by heating and providing a secondary surface layer of the composite material surface with a secondary surface roughness by cooling the softened surface layer. Further, there are provided methods to determine and visualize the level of micro contoured surface layer roughness on a composite product surface.

Abstract: The invention relates to a composite comprising matrix material and organic natural fiber material. The composite may be a compound, a granulate, or at least a part of a sound reproduction device. The composite may be made by injection molding. According to an embodiment a composite comprises matrix material and organic natural fiber based material, wherein the matrix material comprises a thermoplastic polymer matrix. The composite may comprise a relative sound wave resistance of 1500-5000. The composite may comprise a relative damping of sound radiation of 1.5-5.0. The composite may comprise a dynamic modulus of 2000-11000 measured according to ISO 6721-3. The composite may comprise a relative acoustic quality factor of 5-200. The composite may comprise a relative factor of viscous damping of 0.500-0.005.

Abstract: The application relates to a composition and manufacturing and a use of a composite structure having vibrational properties and to a product thereof. According to an embodiment a composition comprises a matrix material and organic natural fiber material, wherein speed of sound is arranged to be different in different directions in the composition.

Abstract: The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and compression ratio of the organic natural fiber material is less than 8. The method further comprises forming a composite product comprising the mixture. Further, the invention relates to a composite product, a use of the composite product, and a system for manufacturing a composite product.

Abstract: The invention relates to a composite product. According to the invention, the composite product contains a polymer based material and an organic natural fiber material, and the organic natural fiber material has a form, and the form of fibers of the organic natural fiber material is a flake, and the organic natural fiber material in the form of the flakes has been mixed with the polymer based material. Further, the invention relates to a method for manufacturing a composite product, a material component, a use of a composite product and a final product.

Abstract: The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and bulk density of the organic natural fiber material is less than 500 kg/m3. The method further comprises forming a composite product comprising the mixture. Further, the invention relates to a composite product, a use of the composite product, and a system for manufacturing a composite product.

Abstract: The invention relates to a composite product. According to the invention the composite product contains a polymer based material and an organic natural fiber material, and the organic natural fiber material has been mixed with the polymer based material to form a mixture, and the composite product having an pore volume has been formed from the mixture so that the pore volume of the composite product is under 15%. Further, the invention relates to method for manufacturing a composite product, a use of the composite product and a final product.

Abstract: The invention relates to a composite product. According to the invention, the composite product contains a polymer based material and an organic natural fiber material, and the organic natural fiber material has a form, and the form of fibers of the organic natural fiber material is a flake, and the organic natural fiber material in the form of the flakes has been mixed with the polymer based material. Further, the invention relates to a method for manufacturing a composite product, a material component, a use of a composite product and a final product.

Abstract: A web-type composite intermediate is formed from fibers and plastic. The composite intermediate is formed by wet web formation from a substantially homogeneous liquid mixture which contains natural fibers, plastic particles having a diameter of less than approximately 1000 ?m, and an agent that improves compatibility between natural fibers and plastic particles. In addition, a method for forming a composite intermediate and the use of the composite intermediate are also described.

Abstract: A web-type composite intermediate is formed from fibers and plastic. The composite intermediate is formed by wet web formation from a substantially homogeneous liquid mixture which contains natural fibers, plastic particles having a diameter of less than approximately 1000 ?m, and an agent that improves compatibility between natural fibers and plastic particles. In addition, a method for forming a composite intermediate and the use of the composite intermediate are also described.

Abstract: A method, system and use for heat exchange in super-critical or near-critical water gasification process of biomass. The method comprising steps of: heating a biomass in a first heat exchanger (6) by thermal energy of a heat transfer medium, reacting the biomass in said super-critical or near-critical water gasification process and producing reaction products, cooling the reaction products of the biomass in a second heat exchanger (12) by absorbing the thermal energy of the reaction products to said heat transfer medium, and circulating said heat transfer medium between the first heat exchanger (6) and the second heat exchanger (12), wherein molten salt is used as the heat transfer medium.

Abstract: The present invention relates to a method for modulating animal digestive tract microbiota wherein the modulating comprises adding an extract of birch bark to animal feed. The invention further relates to a feed composition comprising a birch bark extract for enhancement of animal performance and gastrointestinal health.

Abstract: The present invention relates to a method for modulating animal digestive tract microbiota wherein the modulating comprises adding an extract of bark to animal feed. The invention further relates to a feed composition comprising a bark extract for enhancement of animal performance and gastrointestinal health.