Abstract: This invention relates to a process for making a paper or cardboard sheet from a fibrous suspension, comprising the following steps: a) injecting a P3 polymer into a suspension of cellulosic fibers, b) forming a paper or cardboard sheet, c) drying the paper or cardboard sheet, the P3 polymer being prepared, prior to step a), from a water-soluble P1 polymer of at least one nonionic monomer selected from acrylamide, methacrylamide, N,N-dimethylacrylamide and acrylonitrile, the P1 polymer being subjected to an Re1 reaction to give a P2 polymer, which is then subjected to an Re2 reaction to give the P3 polymer, which is injected into the fibrous suspension within 24 hours of the start of the Re1 reaction, the Re1 reaction comprises preparing a P2 polymer comprising isocyanate functions by reaction for 10 seconds to 60 minutes between (i) an alkali hydroxide and/or an alkaline earth hydroxide, (ii) an alkali hypohalite and/or an alkaline earth hypohalite and (iii) the P1 polymer, the Re2 reaction comprises pre

Abstract: A molded pulp product including: a pulp, a water- and oil-resistant agent, and a water soluble polymer that does not dissolve in an aqueous medium at 40° C. or lower, wherein a content of the water soluble polymer is 1 to 50% by mass, based on the pulp.

Abstract: A pulp mixture includes a lignocellulosic material, water, lignin, an inorganic salt, and a copolymer including two or more structural units chosen from ethylene oxide units, propylene oxide units, (meth)acrylic acid units, ethyl acrylate units, and combinations thereof. The copolymer is free of silicone-containing structural units and the lignin is present in an amount of greater than about 150 ppm, based on a total weight of the pulp mixture.

Abstract: A method is provided to fabricate a green desiccant wheel. A green recycled adsorbent material of aluminum hydroxide and alumina is extracted and used as a base material to be added to a 3-dimensional (3D) network skeleton of a foam support. Through sintering, surface is hardened with the material adsorbed to megapores uniformly distributed. Thus, an adsorbent material of porous ceramic having pores on surface is made. The area contacting with moist air is increased. The moisture-adsorbing capacity is improved. At last, the whole procedure is integrated to develop a high-efficiency green desiccant wheel. Thus, the reusable materials are kept at innate grade or upgraded for recycling and regenerating. New materials and products can be further fabricated. The present invention helps solving environmental problem of wastes. Life cycle of resource is lengthened. A sample of recycling economy is innovated. Industrial efficiency is effectively enhanced.

Abstract: A separation material and method for separating and recovering a target gas from a mixed gas including the target gas and a hydrocarbon gas that has the same number of carbon atoms as the target gas, the target gas being a hydrocarbon gas having 2 or 4 carbon atoms and a carbon-carbon double bond. This gas separation material includes: a metal complex containing a 2,3-pyrazinedicarboxylic acid; an ion of at least one type of metal (M); and an organic ligand (B) capable of bidentate coordination to the metal ion represented by general formula (1) or general formula (2), where (M), formula (1) and formula (2) are as defined herein. The metal complex has a composition represented by M2+2A2?2B where M2+ is the ion of the metal (M), A2? is a 2,3-pyrazinedicarboxylate dianion and B is the organic ligand (B) capable of bidentate coordination to the metal ion.

Abstract: Process for manufacturing a sheet of paper and/or board, according to which, in a plant comprising a fan pump and a head box: a cellulose fiber suspension is prepared; the white waters are introduced into the thick stock; the mixture is homogenized in the fan pump; the thin stock is transferred to the head box; the sheet is formed and then dried, characterized in that, before homogenization of the mixture in the fan pump, a cationic copolymer obtained by Hofmann degradation reaction is introduced into the white waters and/or the thick stock and/or the mixture formed by the white waters and the thick stock.

Abstract: Process for manufacturing a sheet of paper and/or of paperboard and the like, according to which, the cellulosic material is brought into contact with at least one dry strength aid, characterized in that said dry strength aid is a cationic or amphoteric (co)polymer derived from the reaction between at least one aldehyde and at least one base (co)polymer comprising at least one nonionic monomer, said base copolymer being modified with at least one polyfunctional compound comprising at least three heteroatoms chosen from N, S, O and P, in which at least three of these heteroatoms each have at least one mobile hydrogen.

Abstract: A method of treating a cellulosic slurry to improve drainage is disclosed; the method comprises adding a surfactant based brown stock wash aid to a cellulosic furnish in an amount of from 0.5 to 1 lbs per ton and adding a synthetic polymer papermachine drainage or strength aid to the furnish in an amount of from 0.1 to 10 lbs per ton, allowing the furnish to drain and forming a paper product.

Abstract: The invention is directed towards methods, compositions, and apparatus for increasing the strength of paper made out of a furnish having a large proportion of OCC. The method involves the following steps: 1) Providing a paper furnish having a large amount of OCC in it, 2) adding strength promoter to the furnish prior to adding a strength agent to the furnish, 3) adding a strength agent to the furnish, and 4) making a paper product from the furnish. This method allows cheap OCC material to be used in a papermaking process without the quality problems that the anionic trash in OCC typically causes. Thus paper products having low costs and high quality can be produced.

Abstract: The present invention concerns a process of making paper, board or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained on a moving screen to form a sheet which is dried, wherein the process employs a treatment system which is applied to the thin stock, said treatment system comprising as components, a) a cationic organic polymer of charge density of at least 3.0 meq/g with a molar mass Mw of up to 3 million Daltons or poly aluminium chloride (PAC), b) a cationic polymer having an average molar mass Mw of at least 500,000 Daltons and a charge density not exceeding 4.0 meq/g; c) a microparticulate material; in which components (b) and (c) are added to the cellulosic thin stock after the last shear stage before the head box and component (a) is added to the cellulosic thin stock before the said last shear stage.

Abstract: The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3% by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g.

Abstract: An aqueous colloidal silica product, a method of using the aqueous colloidal silica product, and a method of producing an aqueous colloidal silica product, are disclosed. The method of producing the aqueous colloidal silica product incorporates semi-batch addition of alkali metal silicate, which is capable of achieving an aqueous colloidal silica product having desirable physical and chemical characteristics. The aqueous colloidal silica product has been found to be particularly useful as an additive in a papermaking process.

Abstract: A rapid cycle, gas permeable, adsorbent-containing (“RCA”) paper suitable for separating at least a portion of a first gas from a second gas in a gas mixture to produce a product stream enriched in the first gas. The RCA paper contains p-aramid fibrids and zeolite.

Abstract: The present invention provides a process for preparing a paper or paper board of improved strength which comprises the steps of i) providing a cellulosic thick stock, ii) diluting the thick stock of step i) to form a thin stock, iii) draining the thin stock of step ii) on a wire to form a web, and iv) drying the web of step iii) to form paper or paper board, wherein the cellulosic thick stock of step (i) comprises organic polymeric microparticles, as well as paper obtainable by above process.

Abstract: The present invention provides a process for preparing a paper or paper board of improved strength which comprises the steps of i) providing a cellulosic thick stock, ii) diluting the thick stock of step i) to form a thin stock, iii) draining the thin stock of step ii) on a wire to form a web, and iv) drying the web of step iii) to form paper or paper board, wherein the cellulosic thick stock of step (i) comprises organic polymeric microparticles, as well as paper obtainable by above process.

Abstract: The present invention provides a process for preparing a paper or paper board of improved strength which comprises the steps of i) providing a cellulosic thick stock, ii) diluting the thick stock of step i) to form a thin stock, iii) draining the thin stock of step ii) on a wire to form a web, and iv) drying the web of step iii) to form paper or paper board, wherein the cellulosic thick stock of step (i) comprises organic polymeric microparticles, as well as paper obtainable by above process.

Abstract: The present invention provides a process for preparing a paper or paper board of improved strength which comprises the steps of i) providing a cellulosic thick stock, ii) diluting the thick stock of step i) to form a thin stock, iii) draining the thin stock of step ii) on a wire to form a web, and iv) drying the web of step iii) to form paper or paper board, wherein the cellulosic thick stock of step (i) comprises organic polymeric microparticles, as well as paper obtainable by above process.

Abstract: The powder composition for paper manufacturing of the invention contains a hydrophobic organic compound (A), an emulsifying and dispersing agent (B), and optionally water-soluble saccharides (C) added based on necessity and has an average particle diameter of 0.1 to 2,000 ?m.

Abstract: A smoking article composition and a method of making a smoking article composition comprising tobacco cut filler, cigarette paper and/or cigarette filter material further comprising a catalyst capable of converting carbon monoxide to carbon dioxide, wherein the catalyst comprises nanoscale catalyst particles dispersed within a porous aluminosilicate matrix. The catalyst can be formed by combining nanoscale catalyst particles or a metal precursor solution thereof with an alumina-silica sol mixture to form a slurry, gelling the slurry to form the co-gel, heating the co-gel to form a catalyst comprising nanoscale catalyst particles dispersed within a porous aluminosilicate matrix. The catalyst can be incorporated in tobacco cut filler, cigarette paper and/or cigarette filter material by spraying, dusting and/or immersion.

Abstract: A packaging device and method for absorbing and reducing moisture as well as a manufacturing process for such device. The packaging device is a container made from paperboard such as containerboards or linerboards with a corrugated medium. The paperboard is insulated with moisture absorbing additives comprising charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon. Perforations may be added in the boards to further permit moisture to reach the corrugated medium, permitting further absorption by the additives embedded within the corrugated medium in between the boards. This packaging device and method is favorable for storing or transporting objects which are sensitive to or would benefit from low moisture/humidity conditions.

Abstract: The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting therefrom; a process for synthesizing effective, high solids resins resulting from the reaction of intermediate polymers with an epihalohydrin; and the resultant high, solids resin. These resins may be used as wet strength resins in the papermaking industry.

Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.

Abstract: A hydrophobic polymer fiber having a cationically charged coating thereon, in which the coating includes a functionalized cationic polymer, such as an epichlorohydrin-functionalized polyamine or an epichlorohydrin-functionalized polyamido-amine, which has been crosslinked by heat. The present invention also provides a fibrous filter which includes hydrophobic polymer fibers having the foregoing cationically charged coating thereon. The present invention further provides a method of preparing a fibrous filter.

Abstract: An improved method for preparing an adsorbent containing sheet is disclosed. Deionized water is employed in a slurry during preparation of the adsorbent containing sheet. The treated adsorbent monoliths provide improved sorption capacity and N2/O2 selectivity when employed in gas separation processes.

Abstract: A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wetting agents. In one embodiment, antifoaming agents are also added to prevent floating fibers which entangle and reduce orientation. Thermoplastic fibers or particles may also be included. Stock is brought into an open headbox in a flow pattern which allows the fibers to decelerate before approaching the porous suction belt (wire). As the fibers approach the suction belt, the fibers begin to turn and align in the streamline so as to present one end toward the suction wire. The leading ends of the fibers are gripped by the moving belt which drags the fibers out of the dispersion stock in a straight line. The porous mat produced may be dried and bonded through hot air, heat and/or pressure, or chemical binders.

Abstract: An improved method for preparing an adsorbent containing sheet is disclosed. Alkali or alkaline metal salts or mixtures thereof are added to a slurry during preparation of the adsorbent containing sheet or washed onto a finished adsorbent monolith which was prepared from the adsorbent containing sheet. The treated adsorbent monoliths provide improved sorption capacity and N2/02 selectivity when employed in gas separation processes.

Abstract: Process for homogenizing the property cross direction profile of a continuous web made of paper or cardboard and a paper machine that is suitable for carrying out the above-mentioned process. The process is characterized in that the shrinkage cross direction profile of the material web is homogenized during its manufacturing process by controlling the local composition of the stock suspension sectionally across the width by changing the proportions of components that have different shrinkage behaviors. The paper machine includes an approach flow system having at least two regions that produce different stock suspensions with fiber mixtures that have different shrinkage behaviors. The stock suspension supplies from the approach flow system to the headbox have at least two branches for the at least two different stock suspensions. Near the headbox, a plurality of sectional mixing points are provided, which combine the stock suspensions that have different shrinkage behaviors.

Abstract: A wipe product comprises a substrate and functional additive, preferably a high internal phase inverse emulsion, disposed in a discontinuous pattern on the substrate such that the pattern provides areas coated with the emulsion and areas free of the emulsion. When the product is wound into a roll, any two adjacent layers in the roll have their areas coated with the functional additive offset relative to each other. This improves water-retaining characteristics and roll compressibility characteristics of the product. Preferably, the functional additive of one layer is supported by the areas free of the functional additive of the adjacent layer. During the use, upon the application of pressure to the wipe, the emulsion locally expresses water useful for cleaning. The discontinuous pattern of the emulsion provides regions of the substrate which are wetted during use and regions which may remain dry. The wetted regions transfer water to the surface to be cleaned.

Abstract: The invention provides a polymeric composition comprising a blend of highly fluorinated ion exchange polymer and highly fluorinated nonfunctional polymer, the blend having interpenetrating continuous phases of the highly fluorinated nonfunctional polymer and the highly fluorinated ion exchange polymer. Further the invention provides for liquid compositions comprising a highly fluorinated solvent, a highly fluorinated ion exchange polymer precursor and a highly fluorinated nonfunctional polymer with the polymers being miscible with each other in the solvent. The compositions are useful for making ion exchange membranes. Membranes of the compositions have enhanced tensile properties.

Abstract: The subject-matter of the present invention is a filter paper for laden liquids, with a high adsorption and absorption capacity. This paper, based on cellulose fibers, is filled with organic and/or inorganic pulverulent matter. The powder filling is adapted in quantity and quality to the liquid to be filtered. It finds its application in petrochemical, agri-foodstuffs and papermaking industries.