| Patent application number | Description | Published |
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| 20080314536 | High Quality Paperboard and Products Made Thereof - The invention relates to a high quality paperboard comprising at least two plies, a first ply having good surface properties and strength, and a second ply for providing the paperboard with bulk wherein the second ply comprises hardwood CTMP. This paperboard has an internal strength and a bending resistance that is comparable with conventional high quality paperboard based on softwood CTMP. The invention also relates to products manufactured of the paperboard. | 12-25-2008 |
| 20090114359 | Method For Use In The Wet End Of A Paper Machine, Cardboard Machine Or An Equivalent Web Forming Machine - The invention relates to a method in the wet end of a web forming process. In the method, at least one electrode pair ( | 05-07-2009 |
| 20090186135 | HEAT-SEALED STERILISED PRODUCT PACKAGE, PACKAGING MATERIAL FOR THE SAME AND USE OF THE PACKAGING MATERIAL - The invention relates to a polymer-coated heat-sealable packaging material, to a heat-sterilised package formed from this and to the use of the packaging material. The material comprises a fibre base | 07-23-2009 |
| 20100015460 | METHOD FOR CONTROLLING SURFACE CONTACT AREA OF A PAPER OR BOARD SUBSTRATE - The application relates to a method for controlling contact area of a paper or board substrate ( | 01-21-2010 |
| 20110000847 | METHOD FOR PRODUCING PARTICLES ELECTROSTATICALLY - The invention refers to a method for forming particles or droplets of at least one substance comprising the steps of providing a foamed medium, which foamed medium comprises said substance, and forming particles or droplets of said substance at least partly by electrostatic processing. The use of foamed medium in electrostatic processing enables higher production speeds and increases the evenness of a coating layer formed by electrospinning or electrospraying the particles or droplets on a substrate. | 01-06-2011 |
| 20110031156 | SOLVENT-RESISTANT LIQUID PACKAGING BOARD, ITS MANUFACTURING METHOD AND USE, AND A DRINKING CUP MADE OF THE SAME - The invention relates to a polymer-coated, heat-sealable liquid packaging board that resists solvents, such as strong alcoholic drinks, to a method of manufacturing the same and to a drinking cup made of the same. In the invention, resistance to solvents is achieved by lowering the raw edge penetration to the board. For this, the fibre base of the board contains at least 1.3 kg of hydrophobic size containing alkyl ketene dimer (AKD) per 1 tonne of dry matter, and at least 1.0 kg of wet-strength size per 1 tonne of dry matter, the density of the fibre base is 630-800 kg/m3 and the amount of heat-sealable polymer in the top layer is higher than the Bristow wheel roughness volume of the uncoated fibre base and/or at least 14 g/m2. When manufacturing the board, the AKD size, the length of the carbon chain of which is preferably at least C18, and the wet-strength size, such as polyamidoamine epichlorohydrin resin (PAAE), are added into the stock on the wire of the paper or board machine or before the same. At the same time, the pH of the tail water is adjusted so as to be alkaline, preferably to a value of over 9, whereby the pH of the water extract of the obtained board is in the order of about 7 or more. The drinking cup made of the board resists an ethanol solution of 30% by weight at 23° C. for at least 1 h. | 02-10-2011 |
| 20120135506 | PROCESS FOR PRODUCING MICROFIBRILLATED CELLULOSE - A process for treating cellulosic fibres comprising pre-treating the fibres with an enzyme in a first enzymatic treatment followed by mechanical pre-treating the fibres in a first mechanical treatment and a second enzymatic treatment followed by a second mechanical treatment of the fibres to form micofibrillated cellulose. In this way it is possible to produce mircofibrillated cellulose (MFC) in an improved and energy efficient way. | 05-31-2012 |
| 20120136146 | PROCESS FOR THE PRODUCTION OF MICROFIBRILLATED CELLULOSE AND PRODUCED MICROFIBRILLATED CELLULOSE - A process for producing microfibrillated cellulose comprises providing a slurry comprising cellulosic fibers, treating the slurry with an enzyme, mechanically treating the slurry so that the fibers are disintegrated wherein the mechanical treatment and the treatment with the enzyme is performed simultaneously in a single treatment step. In this way it is possible to produce microfibrillated cellulose (MFC) in an improved and energy efficient way. A microfibrillated cellulose is produced according to the process. | 05-31-2012 |
| 20120214979 | PROCESS FOR THE PRODUCTION OF MICROFIBRILLATED CELLULOSE IN AN EXTRUDER AND MICROFIBRILLATED CELLULOSE PRODUCED ACCORDING TO THE PROCESS - The present invention relates to a process for the production of microfibrillated cellulose wherein the process comprises the steps of, providing a slurry comprising fibers, adding the slurry to an extruder, treating the slurry in the extruder so that the fibers are defibrillated and microfibrillated cellulose is formed. The invention further relates to a microfibrillated cellulose produced. | 08-23-2012 |
| 20120219816 | PROCESS FOR THE PRODUCTION OF A PAPER OR BOARD PRODUCT AND A PAPER OR BOARD PRODUCED ACCORDING TO THE PROCESS - The present invention relates to a process for the production of a paper or paperboard comprising at least two plies wherein microfibrillated cellulose is added to the surface of a first ply and the other ply is attached to the first ply so that the microfibrillated cellulose located in between the plies. The invention further relates to a paper or board produced according to the method. | 08-30-2012 |
| 20120241114 | PROCESS FOR PRODUCTION OF A PAPER OR PAPERBOARD PRODUCT - The present invention relates to a process for producing a paper or paperboard product which process comprises the steps of, providing a furnish comprising fibers, adding starch to the furnish, adding microfibrillated cellulose to the furnish, conducting the furnish to a wire in order to form a web, wherein the starch and microfibrillated cellulose is added separately to the furnish. | 09-27-2012 |
| 20120251818 | PAPER OR PAPERBOARD SUBSTRATE, A PROCESS FOR PRODUCTION OF THE SUBSTRATE AND A PACKAGE FORMED OF THE SUBSTRATE - The present invention relates to a paper or paperboard substrate having barrier properties which substrate comprises a first fiber based layer, a second layer comprising microfibrillated cellulose and a third layer comprising a polymer. The invention further relates to a process for the production of said substrate and a package formed of said substrate. | 10-04-2012 |
| 20120308790 | SURFACE TREATMENT COMPOSITION - The invention relates to a surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt or a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced. | 12-06-2012 |
| 20130004748 | METHOD FOR PROVIDING A SUBSTRATE WITH A BARRIER AND A SUBSTRATE COMPRISING A BARRIER - The invention relates to a method for providing a surface of a fiber based substrate with a barrier layer wherein the barrier layer is formed by depositing nanofibers on the surface by the use of electrospinning or meltspinning and wherein the film is formed by post treatment of the substrate. The invention further relates to a substrate comprising such a carrier layer. | 01-03-2013 |
| 20130017349 | COATED SUBSTRATE, A PROCESS FOR PRODUCTION OF A COATED SUBSTRATE, A PACKAGE AND A DISPERSION COATINGAANM Heiskanen; IstoAACI ImatraAACO FIAAGP Heiskanen; Isto Imatra FIAANM Backfolk; KajAACI LappeenrantaAACO FIAAGP Backfolk; Kaj Lappeenranta FIAANM Axrup; LarsAACI HammaroAACO SEAAGP Axrup; Lars Hammaro SE - The present invention relates to a coated fiber based substrate comprising a dispersion coating wherein said dispersion coating comprises microfibrillated cellulose and colloidal particles of a polymer. The invention further relates to a package formed from said substrate, a dispersion coating and process for the production of mentioned substrate. | 01-17-2013 |
| 20130047893 | COMPOSITION COMPRISING MICROFIBRILLATED CELLULOSE AND A PROCESS FOR THE PRODUCTION OF A COMPOSITION - The present invention relates to a composition comprising microfibrillated cellulose, mono-, di- or oligo-saccharides and a pigment in order to achieve a composition with improved rheological properties such as a low viscosity even at high dry content. The present invention further relates to process for the production of said composition. The microfibrillated cellulose is produced by at least partly enzymatic treatment of cellulosic fibers such that even mono-, di- or oligo-saccharide is formed. | 02-28-2013 |
| 20130053454 | PROCESS FOR THE PRODUCTION OF A COMPOSITION COMPRISING FIBRILLATED CELLULOSE AND A COMPOSITION - The present invention relates to a process for the production of a composition wherein the process comprises pre-treating cellulosic fibers by mechanical, chemical and/or enzymatic treatment, mixing the pre-treated cellulosic fibers with pigments forming a dispersion and dispersing the dispersion of pre-treated cellulosic fibers and pigments whereby a composition comprising microfibrillated cellulose is formed. The invention further relates to a composition produced according to the process. | 02-28-2013 |
| 20130056383 | CONTAINER FROM FIBRE BASED BOARD AND A METHOD FOR PRODUCING SUCH A CONTAINER - The present invention relates to a container made from fiber based board wherein the container comprises a sleeve and a bottom, said bottom comprises polymer coated board, at least one side of said sleeve is uncoated and the sleeve is formed by sealing two edges of the sleeve together along a side seam. The invention further relates to a method for producing said container. | 03-07-2013 |
| 20130059088 | PRIMING AND COATING PROCESS - The invention relates to a method for priming a substrate by contacting the substrate with a primer fed from a primer source and depositing the primer on the substrate. Compared to other priming methods, the claimed priming gives better results because the deposition is carried out electrostatically. | 03-07-2013 |
| 20130180680 | PAPER OR PAPERBOARD PRODUCT AND A PROCESS FOR PRODUCTION OF A PAPER OR PAPERBOARD PRODUCT - The present invention relates to a paper or paperboard product comprising a furnish wherein said furnish comprises a cationic polymer in an amount of above 1.5% by weight, an anionic polymer and microfibrillated cellulose. The invention further relates to a process for the production of said product. | 07-18-2013 |
| 20140073774 | PROCESS FOR TREATING CELLULOSE AND CELLULOSE TREATED ACCORDING TO THE PROCESS - The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: —providing a slurry comprising cellulose and liquid, —subjecting the slurry to an electric field inducing the liquid of the slurry to flow, —separating the liquid from the cellulose thus obtaining a liquid depleted slurry, —adding a washing liquid, such as an organic solvent, to the liquid depleted slurry—subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and—separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process. | 03-13-2014 |
| 20140088301 | PROCESS FOR TREATING MICROFIBRILLATED CELLULOSE AND MICROFIBRILLATED CELLULOSE TREATED ACCORDING TO THE PROCESS - The present invention relates to a process for dewatering a slurry comprising microfibrillated cellulose wherein the process comprises the following steps of, providing a slurry comprising microfibrillated cellulose and liquid, subjecting the slurry to an electric field inducing the liquid of the slurry to flow and separating the liquid from the microfibrillated cellulose. The invention also relates to microfibrillated cellulose dewatered according to the process. | 03-27-2014 |
| 20140272213 | PACKAGING BOARD, ITS USE AND PRODUCTS MADE THEREOF - The invention relates to a packaging board comprising a fibrous base and one or more polymer coating layers on one or both sides of the fibrous base. According to the invention the fibrous base contains the combination of an alkyl ketene dimer size, stearic acid anhydride, a wet-strength size and an aluminium compound, which give the board resistance to aggressive liquids as well as thermal treatment, particularly an improved resistance to raw edge penetration in such circumstances. The invention further relates to containers and packages made of the board, for instance disposable drinking cups, dairy product cartons and auto-clave packages, as well as use of the board for such purposes. | 09-18-2014 |
| 20140302336 | PROCESS FOR PRODUCING A DISPERSION COMPRISING NANOPARTICLES AND A DISPERSION PRODUCED ACCORDING TO THE PROCESS - The present invention relates to a process for producing a dispersion comprising microfibrillated cellulose and nanoparticles wherein the process comprises the steps; providing a slurry comprising pre-treated cellulose fibers, adding nanoparticles to the slurry and treating the slurry by mechanical disintegration so that a dispersion comprising microfibrillated cellulose is formed in which the nanoparticles are being absorbed to the surface of the microfibrillated cellulose and/or being absorbed into the microfibrillated cellulose. The invention further relates to a dispersion produced according to the process, a paper or board product being coated with a coating comprising said dispersion and a paper or board product being produced from said dispersion as well as a composite comprising said dispersion. | 10-09-2014 |
| 20140345816 | METHOD OF CONTROLLING RETENTION AND AN INTERMEDIATE PRODUCT USED IN THE METHOD - The invention provides a method of controlling retention on a forming fabric in a paper making process, an intermediate product for use in the method, as well as use of material for the intermediate product. For making the intermediate product at least one paper making chemical is added to a slurry of fine cellulose fibres such as micro fibrillated cellulose (MFC), the specific surface area of those fibres being larger than that of the fibres of the main fibrous suspension for paper making, causing the paper making chemical being adsorbed on the fine cellulose fibres. This intermediate product is then incorporated in the main fibrous suspension before the suspension is supplied from the paper machine head box to the forming fabric. Other paper making chemicals may be added to the fibrous suspension before or after addition of the intermediate product, so that interactions between different chemicals are prevented. The invention permits an increased retention in general as well as improved control of retention of paper making chemicals separately and/or in relation to each other. | 11-27-2014 |
| 20150094464 | METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT - The present invention provides a method for production of cellulose ethers in a high solids process substantially without use of organic solvents as reaction and/or washing medium. In the method of the invention the first alkalization step is carried out by using high solids content cellulose pulp and solid sodium hydroxide. This is followed by an etherification step where the solids content is preferably further increased and the use of solid etherification reactant is preferred. As no organic solvents are used as reaction media the invented method enables production of cellulose ethers directly from never dried pulp with significant savings in energy and investment costs. The method is especially suitable for the production of carboxymethyl cellulose sodium salt (CMC) with low degree of substitution (DS<0.3). The use of the resulting none or low water soluble carboxymethylated cellulosic fibres is suitable for example for producing microfibrillated cellulose. | 04-02-2015 |
| 20150096700 | HYDROPHOBICALLY SIZED FIBROUS WEB AND A METHOD FOR THE PREPARATION OF A SIZED WEB LAYER - A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fibre-based coating, a multiplayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fibre length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products. | 04-09-2015 |
| 20150218757 | METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE - A method for the production of highly refined or microfibrillated cellulose (MFC), comprising the steps of treating cellulosic fibres to remove at least a major part of the primary wall of the fibres, drying the treated fibres, rewetting the treated fibres, and disintegrating the wetted fibres by mechanical means to obtain the final product. Dried cellulosic pulp is produced as an intermediate product of the method, having an average fibre length of at least 0.4 mm, while less than 50% of the primary wall material of natural untreated fibres is left in the intermediate product. Instead of transporting large amounts of dilute MFC dispersion the invention enables transport of the dry intermediate product to the MFC end user, who would complete the process by turning the intermediate product to final MFC by use of standard disintegrating devices. | 08-06-2015 |
| 20150231821 | METHOD FOR THE MANUFACTURING OF A POLYMER PRODUCT WITH SUPER- OR HIGHLY HYDROPHOBIC CHARACTERISTICS, A PRODUCT OBTAINABLE FROM SAID METHOD AND USE THEREOF - The present invention relates to a method for manufacturing a polymer product with super- or highly hydrophobic characteristics, preferably in the form of a film. Also methods for the manufacturing of a laminate and a polymer coated paper or board product, respectively, both having said characteristics, are disclosed. | 08-20-2015 |
| 20150292159 | IN-LINE PRODUCTION METHOD FOR PAPER MAKING PROCESS - An in-line production method for providing a liquid flow of at least one additive in the short circulation and into the liquid flow of a paper making stock of a fiber web machine by feeding, the liquid flow of the at least one additive to the liquid flow of the short circulation, wherein a suitable amount of a microfibrillated cellulose or nanofibrillated polysaccharide is provided substantially simultaneously with the feeding of liquid flow of the at least one additive. | 10-15-2015 |
| 20150299959 | METHOD FOR FORMING A SUBSEQUENTLY DRYING A COMPOSITE COMPRISING A NANOFIBRILLATED POLYSACCHARIDE - A method for the production of a composite material comprising nanofibrillated polysaccharide, the method comprising the following steps:
| 10-22-2015 |
| 20150308017 | MIXING DRYING OF NANOFIBRILLATED POLYSACCHARIDE - A method for drying nanofibrillated polysaccharide to obtain a substantially dry nanofibrillated polysaccharide product, comprising the following steps: (i) providing an aqueous suspension of nanofibrillated polysaccharide; (ii) increasing the solid content of said suspension, thereby forming a high solid content microfibrillated cellulose suspension; and (iii) drying said high solid content microfibrillated cellulose suspension, through a simultaneous heating and mixing operation. | 10-29-2015 |
| 20150315747 | WET LAID SHEET MATERIAL OF A MICROFIBRILLATED MATERIAL COMPOSITION - A wet laid sheet material formed from a fibrous web, characterized in that the initial fibrous web contains >50% a calculated dry microfibrillated material composition by weight of the total fiber material content in the web, wherein the fibrillated material composition has a SR value of >70; and in that the moisture content in the sheet material is >30 wt.-%. | 11-05-2015 |
| 20150315748 | PLY FOR A BOARD FROM AN IN-LINE PRODUCTION PROCESS - A ply for a paper and paperboard made from a ply substrate material, wherein the ply comprises a hybrid material, in an amount of 1-25 wt-% of the ply, wherein the hybrid material is introduced into a target suspension of the short circulation of a fibrous web forming process of a fibrous web machine, in an in-line process, wherein said target suspension forms the ply substrate material, and the hybrid material comprises an alkaline earth carbonate precipitated onto or into fibers or fibrils of a nanofibrillated polysaccharide. | 11-05-2015 |
| 20150337493 | METHOD OF PRODUCING MICROFIBRILLATED CELLULOSE - The invention relates to methods of producing microfibrillated cellulose (MFC). According to the invention a fibrous pulp suspension is fibrillated mechanically at a consistency of less than 12.5%, dewatered to raise the consistency of the fibrillated suspension to at least 12.5%, and then subjected in the dewatered condition to further fibrillation. Alternatively an initially fibrillated fibrous pulp suspension may be dewatered and fibrillated in the dewatered condition, after which these dewatering and fibrillating steps are repeated one or more times so that pulp consistency is increased for each fibrillation step. The goals of raising the consistency between subsequent fibrillations are energy saving and an increased aspect ratio in MFC. The invention even comprises uses of the MFC product, e.g. as an additive for papermaking furnish or injection molded plastic composites. | 11-26-2015 |
| Patent application number | Description | Published |
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| 20080262190 | Method For the Manufacture of Oligo- and Polyesters From a Mixture of Carboxylic Acid Obtained From Suberin and/or Cutin and Use Thereof - The invention relates to a method for processing mixtures of carboxylic acids obtained as hydrolysis products of suberin and cutin, particularly suberin and cutin isolated from birch bark, to give oligo- and polyesters, or corresponding ester-ethers, as well as the use of the products thus obtained as lubricants, fuel components, plasticizers, surface active agents, environmentally friendly agents for modifying wood, binders in coatings, adhesives, printing inks and composites, further in various cosmetic applications. | 10-23-2008 |
| 20090156845 | Acrylate Hybride Polymer Based On Natural Fatty Acids And Method For The Manufacture Thereof - The invention relates to acrylate modified, natural fatty acid based hybride polymers, and to a method for their preparation. The invention also relates to the use of the modified natural fatty acid based hybride polymers as binding agents especially in water based coatings, adhesives and composites and as environmentally friendly wood impregnating agents. The acrylate-modified natural fatty acid based hybride polymer is a block polymer formed of acrylate segments and fatty acid segments. | 06-18-2009 |
| 20090258971 | Composites Containing Acrylate Hybride Resin Based On Natural Fatty Acids - The invention relates to natural fatty acid based hybride resins, which have been modified with reactive monomers, such as acrylates, and especially to their use as binding agents and compatibilisators in combination products such as composites, as well as to composites containing them and to a method for the manufacture of the composites. The combination product comprises 1-50 weight-%, calculated from the dry matter, of a natural fatty acid based acrylate hybride resin, either as such or as an aqueous emulsion, and 99-50 weight-% of cellulose, wood, linen, hemp, starch or other natural fibre material or a combination thereof. | 10-15-2009 |
| 20100324160 | Composite Containing Modified Hybride Resin Based on Natural Fatty Acids - The invention relates to natural fatty acid based hybride resin, modified with reactive monomers, and to a method for preparing it. The invention also relates to the use of the modified natural fatty acid based hybride resin as binding agent especially in water based coatings, glues and composites, and as environmentally friendly wood impregnating agent. The modified natural fatty acid based hybride resin comprises the condensation product of natural fatty acid or natural fatty acid ester, modified with di- or oligo-carboxylic acid or anhydride or half ester, and natural fatty acid based alkyd resin. | 12-23-2010 |
| 20110319504 | METHOD FOR THE MANUFACTURE OF OLIGO- AND POLYESTERS FROM A MIXTURE OF CARBOXYLIC ACID OBTAINED FROM SUBERIN AND/OR CUTIN AND USE THEREOF - The invention relates to a method for processing mixtures of carboxylic acids obtained as hydrolysis products of suberin and cutin, particularly suberin and cutin isolated from birch bark, to give mono-, oligo- and polyesters, or corresponding ester-ethers, as well as the use of the products thus obtained as lubricants, fuel components, plasticizers, surface active agents, environmentally friendly agents for modifying wood, binders in coatings, adhesives, printing inks and composites, further in various cosmetic applications. | 12-29-2011 |
