Abstract: The application relates to an agent containing bound octenyl succinic anhydride groups made via the reaction of octenyl succinic anhydride onto a dispersed waxy starch, which provides significant improvements in paper porosity reduction, when added at a low level to a commodity surface starch dispersion and used to surface size paper.

Abstract: Water-free compositions suitable for application as a surface size to a cellulosic substrate, and methods of applying the water-free compositions to the surface of a cellulosic substrate.

Abstract: The invention relates to a method for preparing a thermoplastic coating on a substrate from a hemicellulose polymer or a cellulose polymer wherein the method comprises at least following steps: —providing a cellulose polymer or a hemicellulose polymer having at least one hydroxyl group which can be used for forming cellulose or hemicellulose ester, —reacting hemicellulose polymer or cellulose polymer with a residue originating to fatty acid with an aliphatic carbon tail of 4-28 carbons or ester thereof, for obtaining hemicellulose fatty acid ester or cellulose fatty acid ester, —dispersing the hemicellulose fatty acid ester or cellulose fatty acid ester into aqueous solution, —dispersion coating a substrate with dispersed hemicellulose fatty acid ester or cellulose fatty acid ester for preparing a coated substrate and —heating the coated substrate for preparing a substrate provided with a coating, so that the substrate provided with a coating is heat-sealable with the same substrate provided with said coating

Abstract: This disclosure provides for a process for making an oil and grease resistant cellulosic material such as paper and paperboard, the process comprising applying a homogeneous aqueous dispersion of fluorochemical surface-modified nanoparticles to a cellulosic substrate to form a treated cellulosic substrate, and subsequently drying the treated cellulosic substrate to form an oil repellent cellulosic material. Fluorochemicals that can be used to modify the nanoparticles include fluoroalkylsilanes, ionic fluorochemicals, or fluorinated polyacrylate obtained by seeded emulsion polymerization of fluorinated acrylates on the nanoparticles. Paper, paperboard and cellulose fiber articles that have been modified by the disclosed processes have improved oil and grease resistance properties.

Abstract: Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, (a) from 30 to 60% by weight of at least one optionally substituted styrene, (b) from 1 to 60% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, being used as ethylenically unsaturated monomers and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65 000 g/mol being used as the starch, the sum (a)+(b)+(c)+(d) being 100% and being based on the total solids content, and the polymerization being carried out in the presence of at least 0.

Abstract: A method for treating a substrate is described. In accordance with one aspect, the method includes applying a polymer coating to a substrate, and bringing the polymer coating into contact with a heated surface in a pressure nip while the coating is still in a wet state. Optionally the polymer coating may include a crosslinkable material, and a crosslinking agent may be used to promote crosslinking. The polymer coating replicates the heated surface. A product produced in accordance with the described method is also disclosed. The product is characterized by having subsurface voids within the coating.

Abstract: Described herein is the use of a modified PET in combination with a vinyl addition silicone water-based release coating to provide performance equivalent to the silicone by itself at a lower cost than the silicone by itself and resulting in a release backing paper that can be repulped and recycled in conventional recycled paper mills avoiding the additional cost of sending the scrap paper to landfill.

Abstract: A primer-less coating composition for facestock comprises: a binder being a water-dispersible polymer; an ethylenically unsaturated compound which is aqueous-dispersible and miscible with or bonded to the water-dispersible polymer, wherein the ethylenically unsaturated compound is able to form a covalent bond with an ink; and a crosslinker that is suitable for binding the coating to the facestock. The coating composition may be applied to a substrate to form a printable film. A printed film having the coating may be used in a label, for example for use on a container such as a bottle.

Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.

Abstract: The present invention relates to a coating composition that comprises a composite structure with a body of polysaccharide, into which carbonate has been precipitated. The invention also relates to a coated paper or board product, onto which the said composition has been spread on one or both sides into one or more layers; as well as to paint that is formed of the coating composition according to the invention, or that contains the said composition.

Abstract: A method of modifying the surface of a substrate which comprises a fibrous material. According to the present invention, the surface is brought into contact with a type of amphiphilic block copolymer which comprises one or several hydrophilic polymeric blocks and one or several hydrophobic polymeric blocks. Approximately 0.01-3 g/m2 of the amphiphilic block copolymer are applied onto the surface. With the help of the present invention, it is possible to effectively modify the surface of paper in such a manner that it produces a good surface for printing, for instance for ink-jet printing.

Abstract: A food packaging material comprises a paper, paperboard or cardboard substrate and a barrier coating on the substrate, wherein the barrier coating comprises the combination of starch, seaweed extract and paper fibers.

Abstract: Polymeric formulations which contain aqueous dispersions of acrylic monomers and copolymers and modified polyethylene terephthalate resin are disclosed which are useful as a coating system or treatment for imparting water, oil and grease resistance to underlying cellulosic substrates. The formulations do not contain any fluorochemicals, polyethylene or wax. Moreover, the formulations provide water, oil and grease resistance properties that are an improvement in the art to known coatings and treatments which contain polyethylene and or wax for water, oil and grease resistance. These coatings can also impart improved anti-wicking properties over the existing art. These formulations have interest as they contain components that are permitted to come into direct contact with food products. Therefore, the formulations of the present invention are ideal for use as coatings for paper and paperboard, including paper packaging such as that utilized in food wrappers, food containers, food receptacles, etc.

Abstract: A resin composition used to form a dye-receiving layer of a thermal transfer-receiving sheet in which the dye-receiving layer is formed on at least one surface of a substrate contains a core/shell-type latex including a core containing (A) and a shell containing (B) and a cross-linking agent that reacts with a carboxyl group contained in the shell. (A) is an acrylic resin at least containing, as one of its monomers, a substituted or unsubstituted phenoxyalkyl (meth)acrylate and/or a substituted or unsubstituted phenoxy polyalkylene glycol (meth)acrylate. (B) is a urethane resin containing a carboxyl group.

Abstract: The invention relates to a method for providing fragrance to a substrate, comprising the steps of: a) treating the substrate with a fragrance-containing composition; and b) treating the substrate with a fixative compound or mixture of fixative compounds selected from the group consisting of: a fructan; a starch hydrolysate having a dextrose equivalent ranging from 1 to 50; a hydrophobically modified fructan; and a hydrophobically modified starch hydrolysate, whereby step b) may be executed prior to, simultaneously with, and/or subsequent to the execution of step a). The invention further relates to fragrance-containing compositions and substrates.

Abstract: This invention is directed to a process for the preparation of a crosslinker composition, comprising the steps of providing a mixture of an aliphatic alcohol A having at least one hydroxyl group and from 1 to 10 carbon atoms, with at least one multifunctional aldehyde C having at least two aldehyde groups —CHO to form a mixture AC, heating the mixture AC to convert at least a part of the multifunctional aldehyde C to its hemiacetal or to its acetal to form a mixture (AC)?, adding to the mixture (AC)? least one cyclic urea U or the educts to produce the said cyclic urea U in situ, which cyclic urea U has at least one unsubstituted >NH group, and reacting the mixture thus obtained to form a chemical bond between the nitrogen atom of the at least one unsubstituted >NH group of the at least one cyclic urea U5 and the carbon atom of the least one aldehyde group —CHO of the multifunctional aldehyde C, and coating compositions comprising the said crosslinker composition.

Abstract: Disclosed is a mica paper composite and a process for making the mica paper composite. Articles comprising the mica paper composite are also disclosed.

Abstract: Disclosed is a material that effectively utilizes natural resources and is friendly to the environment as a whole. Specifically, disclosed is a barrier material that has excellent strength and excellent affinity and adhesion to a paper base due to an interaction with paper fibers and that gives sufficient barrier properties even in the form of a thin film. A laminated body (100) includes, on at least one surface of a base (1) made of paper, a fiber layer (2) containing fine cellulose fibers each having a fiber diameter of 1 nm or more and 10 ?m or less. In particular, the fine cellulose fibers preferably have a fiber diameter of 1 nm or more and 30 nm or less.

Abstract: A building board with coating includes at least one end face (7) covered by two superposed layers (10, 12) of a sheet material, and a layer (11) of filler material is applied between the sheet layers (10, 12).

Abstract: Provided are compositions and methods for making an erasable medium that can include an aqueous photochromic emulsion including a photochromic polymer, a polymer binder, and water.

Abstract: A method of preparing a surface-treated cellulosic substrate, the method comprising applying a surface treatment composition to a cellulosic substrate, the composition being prepared by a method comprising the steps of introducing a source of boron, a crosslinking di-aldehyde, and a blocking agent to form a crosslinking composition; introducing the crosslinking solution with starch and optionally pigments and/or optionally polymeric particles to form the composition.

Abstract: A label has a water dissolvable or water dispersible paper with a coating of a type which can be printed with direct thermal printing. The label is produced by passing a length of such paper with a freshly applied coating of the above type through an oven for drying before the coating has an opportunity to deteriorate the surface of the paper.

Abstract: The present invention relates to an information medium to be handled by a large number of users, such as a banknote, and having antiviral properties, and to a method for making same.

Abstract: Cellulosic tissue sheets having temporary moisture barrier properties are prepared by applying a solution of reactive size in emollient at an elevated temperature to a previously formed tissue sheet.

Abstract: The present invention provides a sol-gel composition which is dilutable with water in any proportion and is based on the reaction of at least the following components: (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >1% by weight, (iii) an organic acid as hydrolysis catalyst, and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as crosslinker, starting from a mass ratio of the solids mass of component (ii) to component (i) 0.75, a process for preparing it and its use, in particular as a sol-gel composition for corrosion control coatings, a corresponding corrosion control coat or primer coat, and articles equipped with such a coating.

Abstract: The present invention relates to improvement in printability of coated paper by adding composition comprising granular starch onto the paper, said composition being essentially free of mineral or synthetic pigment.

Abstract: A biodegradable fiber (including fiber tow) and/or biodegradable paper substrate may be coated with cellulose acetate, plasticized cellulose acetate and/or ethylene vinyl acetate for use in a filter material configured for application in a filter of a smoking article. A filter made in accordance with this design may also include non-biodegradable material.

Abstract: A method of bonding an antimicrobial cationic polyelectrolyte to the surface of a substrate is described, wherein the antimicrobial thus attached to the substrate provides the substrate with antimicrobial properties, and at least a portion of the bonded antimicrobial is substantially non-leachable during normal conditions of use and storage. A method of manufacturing an antimicrobial material is described which comprises exposure of the substrate to a solution of antimicrobial cationic polyelectrolyte, followed by drying the exposed substrate thoroughly to impart a non-leaching property to at least a portion of the antimicrobial cationic polyelectrolytes.

Abstract: The present invention relates to a biopolymer based barrier coating composition wherein said biopolymer based barrier coating composition comprises a plasticizer, a nano-sized clay and a biopolymer comprising a native starch and/or a de-graded starch and/or a chemically modified starch. The present invention also relates to a method for preparing the biopolymer based barrier coating composition as well as to a method for coating a cellulose based substrate with the biopolymer based barrier coating composition. Finally, the present invention relates to a cellulose based substrate coated with said biopolymer based barrier coating composition.

Abstract: Mold- and moisture-resistant gypsum boards and methods for making them are disclosed, the method comprising applying a slurry that forms a gypsum core to an upper or a lower facing sheet impregnated with a thermoset resin (e.g., a phenol-formaldehyde resin) in an amount effective to (i) allow water vapor passage through the facing sheet when the thermoset resin is in its uncured state and (ii) provide mold and moisture resistance to the facing sheet when the thermoset resin is in its cured state and heating sufficiently to cure said resin and dry said gypsum core, thereby yielding said gypsum board.

Abstract: The present invention provides an article formed by impregnating a fibrous structure with a compound, the compound including an aqueous dispersion, the dispersion having (a) at least one polymer selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof; (b) at least one polymeric stabilizing agent; and (c) water; and removing at least a portion of the water from the impregnated fibrous structure. The present invention also provides a method of forming a stiffened textile. The method may include the steps of: forming a compound, the compound including an aqueous dispersion having (a) at least one polymer selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof, (b) at least one polymeric stabilizing agent, and (c) water; impregnating a textile with the compound; and removing at least a portion of the water from the impregnated textile.

Abstract: Size press compositions and methods for producing sized paper products, including liner board, are disclosed. The size press compositions contain at least one non-reactive cationic surface sizing agent, at least one reactive sizing agent, at least one promoter resin, at least one binder, and water. The at least one non-reactive cationic surface sizing agent may be a polymer in the form of a dispersion, an emulsion or a latex with a positive zeta potential below about pH 6. The at least one reactive sizing agent may be a dispersion, an emulsion or a latex including an alkyl ketene dimer or an alkyl succinic anhydride. The at least one promoter resin may be a polyaminoamide-epichlorohydrin resin or poly (dimethyldiallylammonium chloride).

Abstract: Pigmented coated paper is prepared by adding a water-soluble hydroxyalkylcellulose (HAC) with an alkyl moiety of 1 to 4 carbons, or water soluble alkylhydroxyalkylcellulose (AHAC) with an alkyl hydrophobe of 1 to 24 carbons to a pigmented wet coating formulation in an amount equal to or greater than 0.15 parts HAC or AHAC based on pigment content of the coating and applying the pigmented wet coating formulation to a moving paper web via roller metering size press, wherein the use of HAC or AHAC in the pigmented coating significantly reduce misting of the coating during application as compared to the control condition with no HAC or AHAC added.

Abstract: The instant invention relates to mixed salts of optical brighteners of formula (1), wherein M represents a mixture of Mg2+ with another cation, which provide for superior optical brightening effects when applied to the surface of paper.

Abstract: A process for forming room temperature water soluble polymer coatings on porous substrates by forming a solution of a room temperature water soluble polymer, one or more crosslinkers, a solvent for the room temperature water soluble polymer such as water and optionally one or more porogens, or functional agents, stirring the mixture until all the components are dissolved, adding the solution to a porous structure such as a non-woven fabric or a porous membrane and drying the solution on to the substrate as a coating before subjecting the coating to crosslinking. Alternatively, the coating may be partially crosslinked before drying the solution. Porous structures having a room temperature water soluble polymer coating and being capable of convective flow through the pores of the structure and diffusive flow through the coating can be formed.

Abstract: This aqueous composition for coating supports to provide same with anti-blocking properties, comprises: 50 to 99 parts of a binding polymer; 1 to 50 parts of expansible microspheres, The binding polymer is a copolymer having at least one crosslinkable function.

Abstract: Disclosed herein is an environmentally safe, grease resistant article comprising an absorbent substrate, a cross-linking agent, and a polymer; wherein the substrate is first coated with the cross-linking agent and is then coated with the polymer.

Abstract: A print medium suitable for inkjet web press printing is disclosed herein. The print medium includes a paper substrate and an ink-receiving layer coated onto at least one surface of the paper substrate. The ink-receiving layer includes: two different inorganic pigments with different particle sizes; a binder; a water-soluble metallic salt; and a colorant durability enhancer selected from the group consisting of boric acid, borax, sodium tetraborate, phenyl boronic acid, butyl boronic acid and combinations thereof.

Abstract: The present invention relates in general to a method and variations thereof for making an article, such as cloth, water repellent and/or water resistant (i.e. hydrophobic) as well as oil repellent (i.e. oleophobic). In particular, the method involves the process of providing a thin-layer polymer coating on the article thereby rendering the article water repellent and/or water resistant. Articles made according to the method of the present invention are also disclosed and claimed herein as are the treated articles' use.

Abstract: A coated paper suitable for cold-set as well as heat-set printing applications and methods for producing the coated paper. In accordance with one aspect, the coated paper comprises a cellulosic substrate and a coating on at least one side of the substrate wherein the coating comprises a binder and a pigment such that the coated side exhibits surface characteristics such that the surface accepts cold-set inks.

Abstract: Preservative composition for various materials and method of preserving the same is disclosed. The preservative composition includes at least one silane-containing material and at least one hydrocarbon solvent containing molecules of at least five carbon atoms.

Abstract: There is provided a sheet paper material, at least one face of which is provided with a coating; the coating is a substantially even layer of a composition containing a mixture of polyurethane-base polymer material and kaolin; the coating has the look and feel of plastic, and permits high-quality printing; and the paper material is particularly suitable for packing prestige products.

Abstract: A composition comprising one or more compounds of formula (I) or (II): wherein: Rf is a linear or branched perfluoroalkyl having 1 to 7 carbon atoms, optionally interrupted by one to three oxygen atoms, r and q are each independently an integer of 1 to 3, j is 0 or 1, or a mixture thereof, x is from about 1 to about 2, Z is —O—, —S—, or —NR—, R is hydrogen or an alkyl group containing 1 to 4 carbon atoms X is hydrogen or M, and M is an ammonium ion, an alkali metal ion, or an alkanolammonium ion, and its use in providing surface properties to substrates is disclosed.

Abstract: A method for increasing the long term storageability of a cellulosic paper or paperboard product. The method includes providing a paper or paperboard product made from cellulosic fibers having a basis weight ranging from about 80 to about 300 pounds per 3000 square feet. A holdout material is applied to at least one surface of the paper or paperboard product. The web is then coated with an ink receptive material selected from the group consisting of an aqueous acrylic polymer coating material, an aqueous biocidal agent and a combination of aqueous acrylic polymer coating material and aqueous biocidal agent and dried to provide a paper or paperboard product having enhanced long term storageability. Webs made according to the invention are suitable for making file folders which exhibit improve long term storageability by resisting damage from moisture and/or biological activity.

Abstract: A method of bonding an antimicrobial cationic polyelectrolyte to the surface of a substrate is described, wherein the antimicrobial thus attached to the substrate provides the substrate with antimicrobial properties, and at least a portion of the bonded antimicrobial is substantially non-leachable during normal conditions of use and storage. A method of manufacturing an antimicrobial material is described which comprises exposure of the substrate to a solution of antimicrobial cationic polyelectrolyte, followed by drying the exposed substrate thoroughly to impart a non-leaching property to at least a portion of the antimicrobial cationic polyelectrolytes.

Abstract: Preservative compositions for wood products are described. The compositions include at least one boron-containing material, such as but not limited to boric anhydride, and at least one silane-containing material, such as but not limited to methyltrichlorosilane. Optionally, at least one solvent, such as tetrahydrofuran, pentane, or water, may also be employed in the compositions. The compositions impart protection to the treated wood products, especially damage caused by exposure to water and insects.

Abstract: Preservative composition for various materials and method of preserving the same is disclosed. The preservative composition includes at least one silane-containing material and at least one hydrocarbon solvent containing molecules of at least five carbon atoms.

Abstract: A method is provided for treating a paper product, the method comprising; providing a mixture comprising lignin in an aqueous solution at a concentration and pH such that substantially all the lignin is solubilised; treating the paper product with a cationic polymer followed by treating the paper product with the lignin mixture.

Abstract: The present invention is drawn to a method of preparing a porous media substrate, comprising combining metal or semi-metal oxide particulates with a polymeric binder, wherein the metal or semi-metal oxide particulates are associated with at least one water soluble coating formulation additive. At least a portion of the water soluble coating formulation additive i) is in the form of unreacted additive, or ii) generates undesired electrolytes. Additional steps include removing at least a portion of the unreacted additive or undesired electrolytes, either before or after combining the metal or semi-metal oxide particulates with the polymeric binder, thereby forming a refined coating composition; and applying the refined coating composition to a media substrate to form an ink-receiving layer having a porous surface.

Abstract: Compositions and methods useful for imparting coloration to various substrates including plastics, paper, wood, fabrics, fibers and textiles. Materials comprising water-soluble colorants including an amidine group and a chromophore moiety are contacted with a substrate, and the substrate permitted to dry to provide substantially water-proof coloration on the substrate. In one embodiment an ink, coating, or dye is an aqueous composition comprising one or more amidines as provided herein, which is contained within a vessel that includes a gas at an effective level of pressure to enable the gas to react with an amidine as herein provided, to provide and maintain the amidine substantially in its protonated form prior to application of the aqueous composition to a desired substrate.