| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 162181100 | Inorganic | 56 |
| 20100108280 | NEWSPRINT PAPER FOR OFFSET PRINTING - A method of manufacturing a newsprint paper for offset printing, includes: selecting a filler or fillers having an average grain size of 0.5 to 5 μm and a zeta potential of 0 mV or above; providing a pulp slurry for making a base paper; adding the filler or fillers to the pulp slurry in an amount of more than 15 percent by weight but less than 40 percent by weight as ash relative to the dry weight of the base paper; and subjecting the resultant slurry to a papermaking machine to obtain the base paper. | 05-06-2010 |
| 20110146930 | CONTROLLING THE DETECTABILITY OF AN ARTICLE AND METHOD FOR AUTHENTICATING THE ARTICLE - Cascading phosphors are described herein that produce emissions when they are excited by incident radiation. The cascading phosphors can be applied to articles, and can be useful in authenticating the article. The cascading phosphors include a host and at least three active ions. | 06-23-2011 |
| 20110174455 | COMPOSITIONS AND PROCESSES FOR PAPER PRODUCTION - Oxidative compositions and processes that preserve and enhance the brightness and improve color of pulp or paper when applied during different stages of the papermaking process are identified. The oxidative composition and method maintains and/or enhances brightness, prevents yellowing, and enhances the performance of paper products. Used in combination with optical brighteners and/or chelants the oxidative agents produce a synergistic effect not previously identified in the paper process. | 07-21-2011 |
| 20120006501 | Method for Preparing Nonwood Fiber Paper - Paper comprised solely of a nonwood fiber mix is demonstrated to meet the technical physical specifications of commercially produced papers made from wood. The esthetically impressive paper meets nearly every technical specification of commercially produced paper. | 01-12-2012 |
| 20130105100 | Method And Composition For Enzymatic Treatment Of Fiber For Papermaking, And Paper Products Made Therewith | 05-02-2013 |
| 162181200 | Metal salt other than silicate | 28 |
| 20090266501 | COMPOSITION AND INK RECEIVING SYSTEM INCORPORATING THE COMPOSITION - A composition includes an alkenyl succinic anhydride sizing agent or an alkyl ketene dimer sizing agent. The alkenyl succinic anhydride sizing agent is present in an amount ranging from about 1.0 pounds per ton to about 4.0 pounds per ton. The alkyl ketene dimer sizing agent is present in an amount ranging from about 2.0 pounds per ton to about 10.0 pounds per ton. A metallic salt is also incorporated in the composition. | 10-29-2009 |
| 20100032117 | Process for the production of cellulosic product - The present invention relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight; adding to the thick suspension an aluminum compound, alkaline earth metal salt and acid; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention further relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight and an alkaline earth metal ion concentration of at least about 100 mg/l; adding to the thick suspension an aluminum compound and optionally an acid to obtain a pH of from about 4 to about 5.5; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention also relates to an aqueous composition comprising a mixture of an aluminum compound, alkaline earth metal salt and acid and the use of the composition. | 02-11-2010 |
| 20100163199 | READILY DEFIBERED PULP PRODUCT - A wet-laid wood pulp product containing cellulose pulp fibers and elongate precipitated calcium carbonate having a diameter of 0.015 to 0.6 microns at its maximum diameter and a length of 1 to 10 microns and the calcium carbonate being incorporated within the sheet and a method for making the product. | 07-01-2010 |
| 20100163200 | METHOD FOR MAKING READILY DEFIBERED PULP PRODUCT - A wet-laid wood pulp product containing cellulose pulp fibers and elongate precipitated calcium carbonate having a diameter of 0.015 to 0.6 microns at its maximum diameter and a length of 1 to 10 microns and the calcium carbonate being incorporated within the sheet and a method for making the product. | 07-01-2010 |
| 20100288458 | USE OF CARBON DIOXIDE GENERATED IN MANUFACTURING SYNTHETIC HYDROCARBON CHAINS - The invention relates to the use of a carbon dioxide stream generated in oxygen gasification of organic matter for carbonating calcium from a liquid containing calcium ions. The invention also relates to a manufacturing process of paper or board, wherein organic matter is gasified with oxygen in order to carbonate the calcium, the produced carbon dioxide stream is reacted with a liquid containing calcium ions and the carbonated calcium is added to the pulp during the papermaking process as a filler or onto finished paper as a coating. | 11-18-2010 |
| 20110000633 | METHOD FOR CRYSTALLIZING A FILLER IN CONNECTION WITH A FIBER WEB PROCESS, AND AN APPROACH SYSTEM FOR A FIBER WEB MACHINE - The method of the present invention for crystallizing a filler, especially in order to precipitate calcium carbonate on the surfaces of solids in the short circulation of a fiber web machine by feeding carbon dioxide and lime milk to the liquid flow of the short circulation and allowing them to react with one another, is characterized in that the feed system, the mixing method and/or mixing rate of the chemicals are selected such that a size distribution of the calcium carbonate crystals suitable for the purpose is obtained. Moreover, the invention relates to an approach system for a fiber web machine applying this method, characterized in that it is provided with devices for feeding and mixing carbon dioxide and lime milk into the liquid flow at such a rate that the applicable size distribution of the calcium carbonate crystals is obtained. | 01-06-2011 |
| 20110146931 | COMPOSITIONS OF CALCIUM CARBONATES/PIGMENTS FOR PAPER FORMULATIONS, SHOWING PRINT THROUGH REDUCTION - The present invention relates to mixtures of two distinct porous, stable aggregates and rather coarse PCCs (precipitated) calcium carbonate pigments (such as a composition comprising a blend or mix of one of the two Grade B or Grade C PCCs, in combination with a second, specific S-PCC (S=scalenohedral type PCC) pigment in a ratio appropriately selected between 90/10 and 10/90 percent by dry weight, namely 80/20 and 20/80, with a coarser, third component, which may be a pigment and/or a filler such as natural calcium (ground) carbonate or (most preferably) a PCC (precipitated calcium carbonate), depending on the granulometry of the two fine PCCs the third, coarser component, may be omitted. The main criteria for selecting the said “coarser” pigment is that it should feature a granulometry which does no affect noticeably, when in admixture with the blend PCC Grade B (or PCC Grade C) with S-PCC the finest part of the granulometry data of the blend, and in particular that it should not contribute anything significant to the amount of particles <0.2 μm, preferably nothing <0.3 μm, more preferably nothing <0.5 μm and most preferably nothing <1 μm. | 06-23-2011 |
| 20110220311 | REDUCTION OF THE ADSORPTION OF QUATERNARY AMMONIUM SALTS ONTO CELLULOSIC FIBERS - A product comprising cellulosic fibers, 0.0001 to 0.03 moles of a water soluble metal salt per 100 grams of cellulosic fiber, based on the oven dry weight of the cellulosic fiber, water and a quantity quaternary ammonium salt to provide 100 to 3000 ppm of quaternary ammonium salt in solution. A process for making the product. | 09-15-2011 |
| 20130126116 | METHOD AND A SYSTEM FOR PRECIPITATION OF CALCIUM CARBONATE AND A PRODUCT COMPRISING CALCIUM CARBONATE - The invention relates to a method for precipitating calcium carbonate, in which method calcium hydroxide is introduced to a fibre suspension containing cellulose-containing fibres, the calcium hydroxide is allowed to attach onto the surfaces of fibres for a pre-determined time, and the aqueous suspension of calcium hydroxide and fibres is brought into contact with carbon dioxide for precipitating the calcium carbonate. The invention also relates to a corresponding system for precipitating calcium carbonate in connection with cellulose-containing fibres. In addition, the invention relates to a fibrous product, which comprises pulp material produced by said method and comprising calcium carbonate. | 05-23-2013 |
| 20130192783 | NON-CEMENTITIOUS COMPOSITIONS COMPRISING VATERITE AND METHODS THEREOF - Non-cementitious compositions and products are provided. The compositions of the invention include a carbonate additive comprising vaterite such as reactive vaterite. Additional aspects of the invention include methods of making and using the non-cementitious compositions and products. | 08-01-2013 |
| 20130192784 | PROCESS FOR THE PREPARATION OF SURFACE-TREATED CALCIUM CARBONATE MATERIAL AND USE OF SAME IN THE CONTROL OF ORGANIC MATERIAL IN AN AQUEOUS MEDIUM - The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite. | 08-01-2013 |
| 20130206350 | METHOD FOR IMPROVING BRIGHTNESS IN BLEACHED PULP - The invention is directed towards methods and compositions for processes based on the combination of organic peroxyacids and ammonium salts that preserve and enhance the response to optical brighteners (fluorescent whitening dyes), brightness and improve color of pulp or paper when applied during different stages of the papermaking process are identified. The composition and method improve response to optical brighteners (fluorescent whitening dyes), maintain and/or enhance brightness and enhance the performance of paper products. Used in combination with optical brighteners the described agents produce a synergistic effect not previously identified in the paper process. | 08-15-2013 |
| 20130255900 | METHOD FOR FORMING A FIRE RESISTANT CELLULOSE PRODUCT, AND ASSOCIATED APPARATUS - A method is provided for forming a fire resistant cellulose product. Such a method comprises processing cellulose fibers into a fiber mixture, and forming a slurry from the fiber mixture and a fire-retarding solution, wherein the slurry has the fire-retarding solution substantially uniformly distributed therethrough. The slurry is then formed into a cellulose product. An associated apparatus is also provided. | 10-03-2013 |
| 20140124156 | A PRINTING PAPER PRODUCT, AS WELL AS A METHOD AND A SYSTEM FOR MANUFACTURING A PRINTING PAPER PRODUCT - The invention relates to a method for manufacturing a printing paper product, in which method natural fibres are introduced into a system which includes a paper machine. In the method, calcium hydroxide and carbon dioxide are admixed to natural fibres, for precipitating calcium carbonate onto the surfaces of the natural fibres, and said printing machine is used for manufacturing a printing paper product which includes at least said natural fibres, with calcium carbonate precipitated on their surfaces, as a filler for said printing paper product. The invention also relates to a system for manufacturing a printing paper product. Further, the invention relates to a calendered printing paper product which has not been coated with a pigment. | 05-08-2014 |
| 20140360693 | Fiber loading improvements in papermaking - A method of making paper includes mixing calcium hydroxide into a water and pulp fiber slurry. The method also includes reacting the calcium hydroxide and pulp fiber slurry under a carbon dioxide pressure. Further, the method includes causing calcium carbonate precipitate to form in response to the reacting. | 12-11-2014 |
| 20140374045 | METHOD FOR PRETREATING CELLULOSE PULP - A Method of pretreating native cellulose pulp in the manufacture of nanofibrillated cellulose, and a nanofibrillated cellulose product obtainable by the method. | 12-25-2014 |
| 20150059999 | PREPARATION OF PIGMENTS - The present invention relates to an aqueous calcium carbonate containing composition, to methods for producing such aqueous calcium carbonate containing compositions and to the use of the aqueous calcium carbonate containing composition in paper, paper coating, plastics and/or paint applications and as filler in paper. | 03-05-2015 |
| 20150075740 | PROCESSES FOR CLAY EXFOLIATION AND USES THEREOF - The present invention provides methods for producing exfoliated clay platelets from a swellable clay material. In embodiments, the method for producing exfoliated clay platelets includes providing an exfoliating agent comprising an anionic extractant, and exposing the swellable clay material to the exfoliating agent, wherein the exfoliating agent produces exfoliated clay platelets from the swellable clay material. Methods for treating paper precursors and paper sheets are also disclosed, as are paper products formed from such paper precursors or paper sheets. | 03-19-2015 |
| 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 |
| 20160040361 | Fiber loading improvements in papermaking - A method of making paper includes mixing calcium hydroxide into a water and pulp fiber slurry. The method also includes reacting the calcium hydroxide and pulp fiber slurry under a carbon dioxide pressure. Further, the method includes causing calcium carbonate precipitate to form in response to the reacting. | 02-11-2016 |
| 20160076202 | BASECOAT AND ASSOCIATED PAPERBOARD STRUCTURE - A basecoat including a pigment blend that includes a ground calcium carbonate component and a hyperplaty clay component, wherein the ground calcium carbonate component has a coarse particle size distribution, and wherein the hyperplaty clay component has an average aspect ratio of at least 40:1. | 03-17-2016 |
| 162181300 | Sulfate or sulfite | 7 |
| 20080196853 | METHOD OF MONITORING SURFACE ASSOCIATED MICROBIOLOGICAL ACTIVITY IN PROCESS STREAMS - An apparatus and method for monitoring and controlling microbiological activity in a process stream by measuring dissolved oxygen is disclosed. | 08-21-2008 |
| 20100078139 | Method of Correcting Gypsum Crystal Water Effect on Infrared Moisture Measurement - Ash composition measurements of calcium carbonate and gypsum in paper is accomplished with a dual X-ray sensor system with one X-ray source that is powered at about 5.9 KV and a second X-ray source that is powered at about 4.2 KV. Corresponding detectors measure radiation from the respective X-ray sources that is emitted from the paper. Data derived from the measurements yields the gypsum and crystal water content in the paper. The dual X-ray sensor system can be employed in conjunction with infrared total moisture measurements of paper products being manufactured on a papermaking making machine, which contain gypsum and calcium carbonate, in order to correct for the gypsum crystal water effect. | 04-01-2010 |
| 20110061827 | REINFORCED POROUS FIBRE PRODUCT - The present invention relates to a porous fibre product, which contains chemical pulp or wood fibres, between which structural filler particles are attached, as well as to a method of manufacturing this product, wherein filler drops are produced in a spray dryer from the aqueous solution of the filler, the drops forming filler particles when the water evaporates, the particles being attached to the chemical pulp or wood fibres. | 03-17-2011 |
| 20110132560 | GYPSUM PRODUCT - A gypsum-fibre composite product, wherein the gypsum appears as crystals on the surface of the fibre and wherein the gypsum crystals are obtained by contacting calcium sulphate hemihydrate and/or calcium anhydrite and an aqueous fibre suspension. Also disclosed is a process for the preparation of the gypsum-fibre composite product. The composite product can be used as a filler pigment or coating pigment in the production of paper. | 06-09-2011 |
| 20120186766 | MANUFACTURING A PAPERY ARTICLE - The present invention relates to a process for manufacturing papery articles, such as paper, card and board, comprising the pH adjustment of an aqueous composition comprising at least one fiber stock by addition of methanesulfonic acid (MSA). | 07-26-2012 |
| 20120227921 | METHOD OF PRODUCING PAPER WITH METHANE REDUCTION INGREDIENTS - Disclosed is a formulation and method for treating paper so that paper in landfills produces less methane than untreated paper. The method includes adding one or more nitrate salts to paper during the process of making paper, or after the paper is made. One effect of adding the nitrate salts is promoting the growth of certain bacteria which do not produce methane as they consume paper products. | 09-13-2012 |
| 20120318471 | PROCESS FOR THE PREPARATION OF A PIGMENT-FIBRE COMPOSITE - The invention relates to a process for the preparation of a pigment-cellulosic fibre composite, wherein the pigment comprises an inorganic pigment which comprises local cationic charges, said process comprises contacting an aqueous cellulosic fibre suspension and inorganic pigment particles such that crystals of said pigment are attached to the surface of the fibre, said crystals having a size of at most 5 μm. The produced composite product can be used as a filler pigment or coating pigment in the production of paper. | 12-20-2012 |
| 162181400 | Metal oxide or hydroxide | 9 |
| 20090114358 | Sawdust-reinforced pulp material and method of producing the same - A sawdust-reinforced pulp material and its preparation method are herein disclosed Specifically, the method for preparing the sawdust-reinforced pulp material comprises the steps of: mixing 70% to 85% by weight of a pulp prepared from waste paper with 15% to 30% by weight of sawdust, based on the total weight of pulp and sawdust, to prepare a mixture of pulp and sawdust; blending the mixture with an adhesive in the weight ratio of 1:1; pouring the mixture blended with the adhesive into a mold to form a pulp material; and naturally drying the formed pulp material at an ambient temperature of 20 to 25 degrees C to produce the sawdust-reinforced pulp material. | 05-07-2009 |
| 20100212853 | Fiber loading improvements in papermaking - A method of making paper includes mixing calcium hydroxide into a water and pulp fiber slurry. The method also includes reacting the calcium hydroxide and pulp fiber slurry under a carbon dioxide pressure. Further, the method includes causing calcium carbonate precipitate to form in response to the reacting. | 08-26-2010 |
| 20110011548 | METHOD OF AND AN ARRANGEMENT FOR PROPORTIONING THICK STOCK TO A SHORT CIRCULATION OF FIBER WEB MACHINE - The present invention relates to a method and an arrangement for proportioning thick stock to a short circulation of a fiber web machine. Specifically, the method and the arrangement of the invention relate to treating and proportioning thick stock components of paper making stock having a consistency of the order of 2-12%, preferably 2-5%, for instance into white water one component after another alone or together with an additive. | 01-20-2011 |
| 20110209841 | Process for the control of pitch - The present invention relates to a process for the control of pitch in an aqueous medium by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, the use of the surface-reacted natural calcium carbonate for pitch control, as well as to a combination of a surface-reacted natural calcium carbonate and talc for pitch control, and the resulting composites. | 09-01-2011 |
| 20130062030 | METHOD AND A REACTOR FOR IN-LINE PRODUCTION OF CALCIUM CARBONATE INTO THE PRODUCTION PROCESS OF A FIBROUS WEB - A method for production of calcium carbonate in a target suspension of a fibrous web forming process of a fibrous web machine, wherein the calcium carbonate is produced in a reactor, the method includes: injecting a chemical including carbon dioxide or lime milk through an injection mixer to the target suspension flowing through the reactor; allowing the chemical including to react while in the target suspension to form calcium carbonate crystals, and inhibiting precipitation of the chemical or a reaction product of the chemical on a surface of or in the reactor by application of an electric or magnetic field to or proximate to the surface along a region of the surface adjacent to the reaction involving the chemical. | 03-14-2013 |
| 20140182801 | PULP COMPOSITION - One aspect of the invention relates to a pulp composition made from agricultural renewable fibers (ARF) having low Kappa number with unexpected quality sufficient for papermaking (e.g., high strength parameters and high freeness). Another aspect of the invention relates to an ARF pulp having ISO brightness of 60% or higher, and unexpected quality sufficient for papermaking (e.g. high strength parameters and high freeness). Another aspect of the invention relates to a pulp composition made from a pulping process comprising using a high concentration of anthraquinone (AQ). The pulping process can use wood or nonwood fibers (e.g., bagasse and corn stover) to provide pulp having good paper-making quality. | 07-03-2014 |
| 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 |
| 162181500 | Metal other than alkali metal, magnesium, or alkaline earth metal | 2 |
| 20120247702 | Method for Surface Treatment of a Titanium Dioxide Pigment - The invention relates to a method for the surface treatment of a titanium dioxide with aluminium phosphate and hydrous aluminium oxide that leads to pigments with improved greying resistance, while simultaneously maintaining good brightness and opacity. | 10-04-2012 |
| 20130292078 | PROCESS FOR INKJET PAPER AND PAPER PRODUCED THEREBY - A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m | 11-07-2013 |
| 162181600 | Silicon containing additive other than clay | 8 |
| 20080271867 | Soft tissue paper having a chemical softening agent applied onto a surface thereof - A tissue paper product having at least one ply wherein only one outer surface of the tissue paper product has a chemical softening agent applied and substantially affixed thereto is disclosed. The chemical softening agent provides the tissue paper product with a raw dispensing dust value. The raw dispensing dust value is at least about 13.6 percent less than the raw dispensing dust value of a tissue paper product not having the chemical softening agent applied and substantially affixed thereto. | 11-06-2008 |
| 20090025897 | Inorganic board and method for manufacturing the same - An object of the present invention is to provide an inorganic board lighter in weight and excellent in strength and rigidity, and a method of producing the inorganic board. An inorganic board described in claim 1 for accomplishing the object comprises a hydraulic inorganic material, an inorganic lightweight material, a woody reinforcing material and a calcium silicate hydrate, wherein a ratio of the calcium silicate hydrate to the hydraulic inorganic material is 3-54 parts by mass: 100 parts by mass. Thus, by making an inorganic board, made of a hydraulic inorganic material, an inorganic lightweight material and a woody reinforcing material as main components, further contain a calcium silicate hydrate, an inorganic board which is lightweight and excellent in strength and rigidity can be obtained. | 01-29-2009 |
| 20100200186 | PROCESS FOR PREPARING HIGH STRENGTH PAPER - The present invention provides a process for the preparation of an aqueous composition comprising polysilicate coated mineral particles, wherein the process comprises subjecting an aqueous composition comprising gelled polysilicate and a mineral to shear of at least 5000 rpm for at least 30 seconds. The present invention also provides polysilicate coated mineral particles obtainable by this process as well as paper filled with these particles. | 08-12-2010 |
| 20100236737 | PROCESS FOR THE PRODUCTION OF A CELLULOSIC PRODUCT - The present invention concerns a process for the production of a cellulosic product comprising providing a fiber-containing suspension, wherein at least about 60% by weight of the fibers are cellulosic fibers, and dewatering the suspension on a wire to form a cellulosic fiber web, the process further comprising adding silica-based particles to the formed web and a wet strength agent to the suspension and/or to the formed web. The invention also concerns a product obtainable by the process. The invention further concerns a dispersion comprising silica-based particles and a substantially aldehyde-free wet strength agent. A further aspect of the invention concerns a dispersion comprising silica-based particles having a specific surface area ranging from about 1000 to about 1700 m | 09-23-2010 |
| 20100236738 | SILICA-BASED SOLS AND THEIR PRODUCTION AND USE - The invention relates to a process for producing aqueous silica-based sols which comprises providing a cationic ion exchange resin having at least part of its ion exchange capacity in hydrogen form; bringing said ion exchange resin in contact with an aqueous alkali metal silicate to form an aqueous slurry; adjusting the pH of the aqueous slurry and separating the ion exchange resin from the aqueous slurry, as well as the silica-based sols obtained by the process. | 09-23-2010 |
| 20110303377 | NEWSPRINT PAPER FOR OFFSET PRINTING - A method of manufacturing a newsprint paper for offset printing, includes: selecting a filler or fillers having an average grain size of 0.5 to 5 μm and a zeta potential of 0 mV or above; providing a pulp slurry for making a base paper; adding the filler or fillers to the pulp slurry in an amount of more than 15 percent by weight but less than 40 percent by weight as ash relative to the dry weight of the base paper; and subjecting the resultant slurry to a papermaking machine to obtain the base paper. | 12-15-2011 |
| 20140251565 | PROCESS FOR PRODUCING HIGH SOLIDS COLLOIDAL SILICA - The invention provides a method for improving the effectiveness of colloidal silica. The method involves removing enough charged impurities from the colloid to prevent the charged particles from causing the colloid to become a viscous gel. The method however also involves not removing too many charged particles so the silica material doesn't gel by cross-linking with itself. This method is quite effective because it recognizes that materials that have accumulated during the formation of the colloid do perform an important function, but they can perform better at a lower concentration. | 09-11-2014 |
| 162181700 | Alkali metal silicate | 1 |
| 20100065238 | SILICA-BASED SOLS AND THEIR PRODUCTION AND USE - A process for producing an aqueous silica-based sol is disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminium compound; and separating the resin from the slurry. | 03-18-2010 |
| 162181800 | Clay | 2 |
| 20090065163 | KAOLIN PRODUCTS AND THEIR PRODUCTION - A particulate product comprising kaolin produced from a method wherein the kaolin of a feed suspension is such that not more than 30% by weight has a particle size less than 2 μm and not more than 30% by weight has a particle size greater than 10 μm, wherein the kaolin of a product suspension produced is such that not more than 10% by weight has a particle size greater than 10 μm and not more than 10% by weight has a particle size less than 0.25 μm, and wherein the particulate product comprises kaolin produced from a fine fraction suspension. | 03-12-2009 |
| 20110259538 | Disk roll and base material for disk roll - The present invention provides a base material for disk rolls which is a platy molded article for obtaining ring-shaped disks for use in a disk roll comprising a rotating shaft and ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the disks serves as a conveying surface, the base material comprising inorganic fibers having a crystallization temperature of 800-900° C., a filler, and a clay. Also disclosed is a disk roll which comprises disks cut out of the base material. | 10-27-2011 |
| 162181900 | Free metal or free carbon containing | 4 |
| 20100206504 | SHEET-LIKE ARTICLE AND METHOD FOR MAKING THE SAME - A sheet-like article including fibers and carbon nanotubes and/or carbon nanohorns adhering to the surface of the fibers in a uniformly dispersed state without agglomeration to form a network structure on the fibers. The sheet-like article is preferably made by converting the fibers and a dispersion of the carbon nanotubes and/or carbon nanohorns by a wet papermaking process. To use cellulose fibers as main fibers provides a good sheet-like article. | 08-19-2010 |
| 20110108227 | Process For Applying Composition Containing A Cationic Trivalent Metal And Debonder And Fluff Pulp Sheet Made From Same - A process is provided for making a fluff pulp sheet, comprising contacting at least one cationic trivalent metal, salt thereof, or combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and applying at least one debonder surfactant to the web and raising the pH to a second pH, which is higher than the first pH, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one cationic trivalent metal, salt thereof, or combination thereof; at least one debonder surfactant; and a fiberization energy of <145 kJ/kg. Products and uses of the fluff pulp sheet are also provided. | 05-12-2011 |
| 20120111520 | METHOD FOR THE PREPARATION OF ACID-TOLERANT CALCIUM CARBONATE FILLERS AND FILLED PAPER BASED ON HIGH-LIGNIN-CONTENT DEINKED PULP DERIVED FROM RECYCLED NEWSPAPER - The present invention relates to a method for the modification of calcium carbonate fillers to improve their acid-tolerant property and to make their effective use in papermaking of high-lignin-content deinked pulp derived from recycled newspaper. It has been found that modification of calcium carbonate fillers using the combination of a calcium salt with a weak acid can improve the acid-tolerant property of the fillers, and the optical properties of the filled paper, such as brightness, can also be effectively improved. | 05-10-2012 |
| 20150298346 | METHOD FOR REDUCING THE EMISSIONS OF VOLATILE ORGANIC COMPOUNDS FROM WOODEN MATERIALS AND WOODEN MATERIAL - A process for production of wood-base materials from lignocellulosic comminution product is disclosed. The wood-base materials are treated with at least one additive in the course of their production to reduce or diminish the emission of volatile organic compounds (VOCs) and, optionally, very volatile organic compounds (VVOCs), in particular terpenes and acids. The treatment is effected with one additive, being a porous carbon, like activated carbon. In another aspect, the present application is directed to the use of porous carbon, in particular, activated carbon, to reduce or diminish the emission of VOC, and optionally, VVOC, to reduce or diminish the emission of terpene and acids and aldehydes. Also, wood-base materials which are obtainable with the process or wood-based materials produced by using the additives mentioned above and which have reduced emission of VOCs, in particular terpenes and acids but also aldehydes are disclosed. | 10-22-2015 |
