5275results about "Inorganic compound addition" patented technology

The invention concerns a pigment, filler or mineral containing a natural calcium carbonate, treated with one of more providers of H3O<+> ions and gaseous CO2, allowing a reduction in the weight of paper for a constant surface area without loss of physical properties when it is used as a pigment or coating filler for the said paper. In particular, the invention concerns a pigment, filler or mineral containing a natural calcium carbonate or dolomite or mixtures of talc and calcium carbonate, of kaolin and carbonate or carbonate alone or in combination with natural and/or synthetic fibers or similar, treated with one or more medium-strong or strong providers of H3O<+> ions in the presence of gaseous CO2. Applications are particularly in the paper industry, obtaining in particular good sheet properties i.e. a reduction its weight for a given surface area.

Whitened fluff pulp and methods for making whitened fluff pulp. The whitened pulp is a fluff pulp that has been treated with one or more of a white pigment, a colorant, or a fluorescent whitening agent.

The present invention provides a separator for non-aqueous electrolyte batteries which neither breaks nor slips off at the time of fabrication of battery, gives excellent battery fabricability, causes no internal short-circuit caused by contact between electrodes even if the electrodes are externally short-circuited, can inhibit ignition of battery and produces high energy density and excellent cycle life, and further provides a non-aqueous electrolyte battery using the separator and a method for manufacturing the separator. That is, the present invention relates to a separator for non-aqueous electrolyte batteries which comprises a porous base containing at least one member selected from a porous film, a woven fabric or nonwoven fabric containing an organic fiber and a paper and an organometallic compound applied to the porous base; a method for the manufacture of the separator for non-aqueous electrolyte batteries which comprises allowing said porous base to contact with a solution of organometallic compound by impregnation, coating or spraying, followed by drying or curing with heating to apply the organometallic compound to the porous base; and a non-aqueous electrolyte battery using the separator.

Cellulose nanofilaments from cellulose fibers, a method and a device to produce them are disclosed. The nanofilaments are fine filaments with widths in the sub-micron range and lengths up to a couple of millimeters. These nanofilaments are made from natural fibers from wood and other plants. The surface of the nanofilaments can be modified to carry anionic, cationic, polar, hydrophobic or other functional groups. Addition of these nanofilaments to papermaking furnishes substantially improves the wet-web strength and dry sheet strength much better than existing natural and synthetic polymers. The cellulose nanofilaments produced by the present invention are excellent additives for reinforcement of paper and paperboard products and composite materials, and can be used to produce superabsorbent materials.

The present invention relates to a method for reducing the polymer and bentonite requirement in papermaking wherein medium and high molecular weight polymers are reacted with bentonite. Further, mechanical shearing of the furnish after polymer addition is not required.

The invention belongs to the field of macromolecule super-amphiphobic materials and discloses a super-amphiphobic polymer and a super-amphiphobic surface. The super-amphiphobic polymer is a random copolymer composed of structural units shown as a formula I and a formula II. The super-amphiphobic surface is obtained by comprising the following steps of: pre-processing a substrate material; placinga micro-balloon in a fluorine-containing solvent, and ultrasonically dissolving to obtain a micro-balloon supernatant solution; adding the super-amphiphobic polymer, a hydrochloric acid tetrahydrofuran solution and water into the micro-balloon solution while stirring, placing the substrate material, and reacting for 5-24 h; and taking out the substrate material, washing by using the fluorine-containing solvent, methanol and water in turn, drying in vacuum, and obtaining the super-amphiphobic surface. The super-amphiphobic polymer disclosed by the invention can give good surface hydrophobic ability and oleophobic ability to the substrate. Because the polymer has the characteristics of the fluorine-containing polymer so that the polymer can be chemically bonded with the surface of the substrate, the obtained super-amphiphobic surface has good scrubbing resistant property and corrosion resistant property.

A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.

Enhanced removal and/or control of adhesives or sticky materials, “stickies”, from recovered paper stock or virgin pulp fibers is achieved using a combination of enzyme treatment with adsorbents and/or absorbents. Pulp stock to be treated is typically obtained from old magazines, newspapers, household waste, but may include corrugated boxes and office waste. Virgin pulps may include mechanical, chemical, or semi-chemical pulps. Enzymes typically include hydrolases such as cellulases, hemicellulases, pectinases, amylases, and lipases such as esterases, lyases such as pectate lyases, and oxidoreductases. Adsorbents include activated bentonite, microparticles, talc, clay and modified silica. Absorbents typically include water soluble polymers, dispersants, coagulatants and agglomerants.

A method to prepare aqueous furnishes useful as feedstock in the manufacture of very high-mineral content products, particularly paper sheets having mineral filler content up to 90% that display the required physical properties for the intended applications; the furnishes comprise fibrillated long fibres/mineral fillers mixed with anionic acrylic binders and co-additives, in presence or absence of cellulose fibrils; the fibrillated long fibres and cellulose fibrils provide high surface area for greater filler fixation and the reinforcement backbone network that ties all of the product components together; the anionic binders allow rapid and strong fixation of filler particles onto the surfaces of fibrils when mixing is conducted at temperatures higher than the glass transition temperature (T_g) of the binder. The aqueous furnish provides excellent filler retention and drainage during product fabrication.

In this papermaking process, a first strength agent is added to a stock suspension containing pulp and optionally other additives prior to its being formed into a web at the wet end of a papermaking machine. The web is then formed and processed into paper. A second strength agent is then applied to the surface of the paper. The strength agents may be selected to have opposite charge.

This invention relates to composition containing expandable microspheres and at least one ionic compound and having a zeta potential that is greater than or equal to zero mV at a pH of about 9.0 or less at an ionic strength of from 10⁻⁶ M to 0.1 M., as well as methods of making and using the composition.

The present invention relates to a process for making a titanium dioxide pigment having consisting of titanium dioxide and single layer of inorganic surface treatment consisting of aluminum phosphate wherein the pigment is characterized by and isoelectric point which is greater than pH 6 and a negative zeta potential of at a pH of 7.5 or more.

Water soluable, aqueous salt solution dispersible polymers and aqueous salt solutions containing dispersed polymers are produced by polymerization of ethylenically unsaturated soluble monomers in an aqueous salt solution in the presence of at least one carbohydrate. The polymers and aqueous salt solutions containing the dispersed polymers are useful for paper making, water clarification and emulsion breaking.

Basic magnesium carbonate comprising a tubular aggregated particle of flaky fine crystals.

The gas adsorption sheet of the present invention has a granular activated carbon-containing sheet comprising a granular activated carbon having an average particle diameter of 60 to 600 mum, a supporting fiber for fixing the granular activated carbon in contact with it, and an adhesive fiber which mainly contributes to shape retention. An air-purifying filter of the present invention is obtained by forming the gas adsorption sheet into a shape of pleats or wave. A method for producing a gas adsorption sheet of the present invention comprises a step of forming a granular activated carbon-containing sheet by using an aqueous slurry containing a granular activated carbon, a supporting fiber and a water-swelling adhesive fiber.

In an ink jet recording method, a surface of a recording paper, in which a base paper contains a pulp fiber and a filler, one surface of the base paper being coated with a polyvalent metal salt in a coating amount of from 0.1 to 3 g/m², having a basis weight of from 63 to 100 g/m² and an internal bond strength of from 0.05 to 0.2 N·m is printed using an ink of at least one color made of at least a pigment, a water-soluble organic solvent, water and a surfactant and having a surface tension of from 25 to 37 mN/m. According to the method, the color reproduction is improved, the inter color bleeding and the feathering of characters are reduced, the double-sided printability is provided by reducing curling and cockling occurring immediately after printing, and curling and cockling occurring after allowing to stand and drying are also reduced.

The present invention discloses a bump for a semiconductor package, a semiconductor package applying the bump, and a method for fabricating the semiconductor package. As a second bump unit contacting an electrode terminal of a PCB has a smaller width than a first bump unit contacting an electrode pad of a semiconductor chip through a metal adhering layer, even if a pitch between the electrode pads of the semiconductor chip does not correspond to the pitch between the electrode terminals of the PCB, contact reliability is improved by the bump. In addition, the bump does not contact lines adjacent to the electrode terminal of the PCB, thereby preventing a mis-operation of the semiconductor package. Accordingly, the pitch between the electrode pads of the semiconductor chip and the pitch between the bumps can be minimized.

The invention discloses a battery and capacitor diaphragm filter material formed by wet nonwoven fabrics and a preparation method of the filter material. The fiber materials are as follows in percentage by weight: 0.1%-2.5% of plant fibers and 80%-99.9% of synthetic fibers, inorganic powder being 45%-1000% of the weight of the fiber, organic powder being 0-50% of the weight of the fibers, and strengthening binder being 0.5%-15% of the weight of the fibers. The preparation method of the filter material comprises the following steps of: pulping the plant fiber and the synthetic fibers, respectively; homogenizing and mixing the inorganic powder with the organic powder under high pressure, and forming the mixture into a single layer or a plurality of layers by a mixer; coating, thermally rolling and modifying the mixture, so that various physical and chemical indexes of the diagram are improved, the pore diameter size can be effectively controlled and the uniformity of the pore diameter is improved; moreover, treelike crystals can be prevented from being generated by maze type bent holes; the filtering precision and the efficiency are high; the inner resistance of the diagram is high; the liquid retaining rate and the high temperature resistance of the diagram are improved; the over-temperature closed-cell protection is improved; the dimension deformation is small; the service life is long; and the economic benefits and the social benefits are better.

The present invention relates to a filler-fiber composite, a process for its production, the use of such in the manufacture of paper or paperboard products and to paper produced therefrom. More particularly the invention relates to a filler-fiber composite in which the morphology and particle size of the mineral filler are established prior to the development of the bond to the fiber. Even more particularly, the present invention relates to a PCC filler-fiber composite, wherein the desired optical and physical properties of the paper produced therefrom are realized.

The present invention provides for high thermal conductivity paper that comprises a host matrix (10), and high thermal conductivity materials (12) added to a surface of the host matrix in a specific pattern (12). The high thermal conductivity materials are comprised of one or more of nanofillers, diamond like coatings directly on the host matrix, and diamond like coatings on the nanofillers. In particular embodiments the specific pattern comprises one or more of a grid, edging, banding centering and combinations thereof and the high thermal conductivity materials cover 15-55% of the surface of the host matrix. Multiple surfaces, including sub layers my have patterning.

A bulky, water-disintegratable cleaning article is formed of water-disintegratable paper impregnated with 100% to 500% by weight of an aqueous agent. The water-disintegratable paper is a substantially water dispersible fibrous sheet containing a water soluble or swellable binder. The water-disintegratable paper has a great number of protrusions and depressions formed by embossing and has a basis weight of 30 to 150 g/m². The bulky, water-disintegratable cleaning article has a thickness T₁ of 1.0 to 3.0 mm under a load of 0.3 kPa and a thickness T₂ of at least 0.9 mm under a load of 1.0 kPa.

The invention discloses a method for producing corrugated paper with ultralow gram weight and high strength. The method comprises the following technological steps: 1) mixing; 2) addition of water for size degradation to prepare pulp; 3) pulp combination and purification treatment; 4) medium-concentration pulping; 5) addition of a chemical medicine system into the pulp; 6) twin-wire forming, water filtration and paper-making with the pulp; 7) three-stage squeezing dehydration; 8) prebaking and drying; 9) double-faced sizing; 10) postbaking and drying; and 11) coiling. The method utilizes pulping and paper-making process combination and completely utilizes secondary fiber to make the corrugated paper with ultralow gram weight and high strength so as to reduce the gram weight of the corrugated paper, save the fiber amount, reduce the production cost, and simultaneously reduce the energy consumption and the discharge capacity and improve the economic benefit.

The invention relates to an aqueous dispersion containing a dispersant and a disperse phase containing a hydrophobic material, the dispersant comprising an anionic compound having a molecular weight less than 50,000 and being selected from the group consisting of carbon-containing compounds and silicon-containing compounds, and a cationic organic compound having a molecular weight less than 50,000. The invention further relates to the preparation and use of the dispersion in the production of paper. The invention also relates to a substantially water-free composition containing a hydrophobic material, an anionic compound having a molecular weight less than 50,000 and being selected from carbon-containing compounds and silicon-containing compounds, and a cationic organic compound having a molecular weight less than 50,000, as well as it use in the preparation of an aqueous dispersion.