31 results about "Cellulose compounds" patented technology

The present application relates to the technical field of oil exploitation, in particular to a profile control water plugging agent, a preparation method and application thereof. The method comprises the following steps: (1) mixing a cellulose compound, acrylamide and water, then adding a crosslinking agent, and then adding an initiator to perform a polymerization reaction; (2) mixing the material obtained in the step (1) with a metal salt solution, and then performing solid-liquid separation and drying; wherein the cellulose compound is selected from one or more than two of carboxymethyl cellulose, carboxyethyl cellulose and polyanionic cellulose. The profile control water plugging agent is a hydrogel material with a unique double network structure, and has good stability and still maintains good strength under high temperature and high salt conditions.

The present application provides a water-soluble, partially biodegradable dihydroxyalkyl cellulose having about 0.7 to about 2.0 units of dihydroxyalkyl moiety per anhydroglucose moiety, having (i) a molecular weight of dihydroxyalkyl cellulose is in the range of from about 10,000 Daltons to about 1,500,000 Daltons, (ii) a biodegradation rate of ≥3% in an aquatic medium, and (iii) a water solubility at a threshold level of 2 g / L. Also discloses a method for preparing dihydroxyalkyl cellulose and functionalized dihydroxyalkyl cellulose compounds and their use in personal care applications.

The invention discloses a water-based functional building exterior wall coating as well as a preparation process and application thereof, and belongs to the technical field of coatings. The coating is composed of a hydroxy acrylic emulsion, a fluorocarbon emulsion, an iron-doped molybdenum disulfide / nano cellulose compound, composite aerogel powder, modified mordenite, nano SiO2 particles, an intumescent flame retardant, an auxiliary agent and water. Wherein the composite aerogel powder is of a porous structure formed by coating hollow Fe2O3 / TiO2 with SiO2; the intumescent flame retardant is prepared from ammonium polyphosphate, pentaerythritol and melamine according to a specific proportion. The preparation process of the coating comprises a plurality of steps, such as dispersing, stirring, pH adjusting and the like. The coating has excellent properties, such as low heat conductivity coefficient, high antibacterial rate, long flame retardant time and good artificial aging resistance, and can be applied to building exterior walls. Compared with the prior art, the problems of function stacking performance offset, poor nano material compatibility and the like are solved, and the application prospect is wide.

A significant reduction in conversion rate has been observed with a recycled styrene-based resin composition obtained by polymerizing a recycled styrene monomer produced by a conventional method compared with a styrene-based resin composition obtained by polymerizing a petroleum-derived styrene monomer. The purpose of the present invention is to provide a styrene monomer composition comprising (A) a recycled styrene monomer derived from a pyrolysis product of a styrene-based resin product containing a cellulose-based compound, and (B) a pyrolysis compound derived from a pyrolysis product of the styrene-based resin product other than the recycled styrene monomer (A), wherein the pyrolysis compound (B) is contained in an amount of 5 × 10-2 parts by mass or less with respect to 100 parts by mass of the recycled styrene monomer (A).

Cosmetic composition comprising a particulate cellulose compound, hydrophobic silica aerogel particles, and a wax of plant origin The present invention relates to a composition, in particular a cosmetic composition, in particular for caring for keratin materials, comprising: at least one particulate cellulose compound; at least hydrophobic silica aerogel particles; and at least one wax of plant origin having a melting point above 25°C. It also relates to a cosmetic process for caring for keratin materials comprising the application of this composition to the keratin materials. Figure for abstract: None

The method for producing the hydrogel of the present application includes: (A1) a step of preparing a treated object containing a water-soluble cellulose compound and water; (B1) a step of separating water from the treated object by heating the treated object; and (C1) a step of cooling the treated object whose cellulose compound content is increased by the treatment in step (B1), and repeating the series of steps from step (B1) to step (C1) until the cellulose compound content of the treated object reaches 10% by mass or more.

A pharmaceutical composition to be applied to an ocular surface is disclosed that includes a quaternized chitosan derivative to provide antimicrobial activity against gram-negative bacteria, gram-positive bacteria, fungi, and viruses as an active ingredient. This is combined with a cellulose compound acting as a viscosity agent and demulcent to protect and lubricate mucous membrane surfaces. This is further combined with a humectant and tonicity agent to retain moisture on the ocular surface and maintain a comfortable osmolarity for the eye. This is further combined with a buffer / pH adjuster system configured to support a physiologically tolerable pH of about 6.0 to 8.0. Finally, this is combined with purified water as a diluent.

A method for producing a hydrogel according to the present disclosure includes: (A1) a step of preparing an object to be treated including a water-soluble cellulose-based compound and water; (B1) a step of heating the object to be treated so as to separate water from the object to be treated; and (C1) a step of cooling the object to be treated that has acquired an increased content percentage of the cellulose-based compound through the treatment in step (B1), and a series of steps from step (B1) to step (C1) are repeated until the content percentage of the cellulose-based compound in the object to be treated reaches 10% by mass or more.

The present invention relates to a sprayable aqueous acoustic damping composition comprising a polymer, a filler, and a water-soluble cellulose compound or a water-soluble starch wherein the filler comprises a filler (i) having an average particle size (d50 particle size) of about 7 to 18 [mu] m, and a filler (ii) having an average particle size (d50 particle size) of about 2 to 5 [mu] m.

The present invention provides a cellulose compounding cationic starch device and its wet-strengthening process, which relates to the field of paper towel production. The device comprises: a compounding and mixing tank; a connecting air path connected to the bottom of the compounding and mixing tank, the connecting air path being connected to an external air supply device; a compounding and mixing tank being clamped to the top of the left wall of the compounding and mixing tank; a motor being installed on the left wall of the bottom of the compounding and mixing tank; and a material discharge baffle being slidably connected to the front side of the bottom end face of the compounding and mixing tank. High-pressure gas in an outlet pipe is blown toward the bottom of the compounding and mixing tank through an outlet notch and a reflux hood. The gas lifts flocculent fibers settled at the bottom of the compounding and mixing tank, causing the flocculent fibers to float to the top of the liquid surface, thereby enhancing the adsorption between the cationic starch and the negatively charged fibers and filler, thereby improving the fine fiber retention rate and reducing energy consumption. This solves the problems of harm to the human body caused by the production of paper towels using chlorine-containing wet-strengthening agents, as well as low fixing efficiency, weak fiber bonding, easy papermaking end, and increased production energy consumption.

The application relates to a negative electrode dispersant, a preparation method thereof and a lithium ion battery. The negative electrode dispersant comprises a cellulose polymer, the cellulose polymer comprises an alkaline cellulose compound and a crosslinking agent, the crosslinking agent comprises a biphenyl compound, the biphenyl compound comprises at least one biphenyl group, and further comprises one or more of an aldehyde group, an acyl group, an ester group and a carboxyl group. The scheme provided by the application can reduce the addition amount of CMC, improve the energy density of the battery, and does not affect the cycle performance and rate performance of the battery.

The present disclosure relates to an adhesive composition comprising a source of metal ions, polycaprolactone, and a cellulose compound, and to a method for repairing bone or tooth material using the adhesive composition.

A pharmaceutical composition to be applied to an ocular surface is disclosed that includes a quaternized chitosan derivative to provide antimicrobial activity against gram-negative bacteria, gram-positive bacteria, fungi, and viruses as an active ingredient. This is combined with a cellulose compound acting as a viscosity agent and demulcent to protect and lubricate mucous membrane surfaces. This is further combined with a humectant and tonicity agent to retain moisture on the ocular surface and maintain a comfortable osmolarity for the eye. This is further combined with a buffer / pH adjuster system configured to support a physiologically tolerable pH of about 6.0 to 8.0. Finally, this is combined with purified water as a diluent.

The present invention relates to stabilized modified release vitamin D formulations and methods of administering the same. A stabilized formulation for controlled release of a vitamin D compound is disclosed. The formulation comprises one or both of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 and a cellulose compound. The stabilized formulation exhibits a stable dissolution profile after exposure to storage conditions and demonstrates improved pharmacokinetic parameters compared to unstabilized formulations.

The invention provides a high-weather-resistance flame-retardant wood-plastic composite material based on rare earth / nanocellulose. The high-weather-resistance flame-retardant wood-plastic composite material is prepared from the following raw materials: 25 to 40 parts of wood fiber, 3 to 8 parts of nanocellulose, 10 to 30 parts of high-density polyethylene, 3 to 5 parts of maleic anhydride grafted high-density polyethylene, 3 to 6 parts of calcium carbonate, 4 to 8 parts of kaolin, 2 to 5 parts of lubricant, 0.3 to 0.5 part of silane coupling agent, 1 to 3 parts of rare earth light stabilizer and 8 to 15 parts of halogen-free flame retardant. The nano cellulose and the rare earth light stabilizer are premixed to form a rare earth / nano cellulose compound. The invention also provides a preparation method of the material. The nano-cellulose and the rare earth light stabilizer are premixed to form a compound, a hybrid three-dimensional reinforced network is constructed, meanwhile, a gas phase-condensed phase flame retardant mechanism is formed through cooperation of the halogen-free flame retardant and the nano-cellulose and the rare earth light stabilizer, synchronous improvement of weather resistance, flame retardance and mechanical properties of the material is achieved, and the environment-friendly requirement is met.

The application provides anti-deformation and anti-cracking honeycomb activated carbon and a preparation method thereof. The anti-deformation and anti-cracking honeycomb activated carbon comprises the following raw materials: powdered activated carbon powder, hydrophilic fumed silica, aqueous blocked isocyanate emulsion, polydextrose, water-soluble polyether glycol and water. The application replaces water-soluble hydroxyl cellulose compounds with polydextrose and water-soluble polyether glycol, which can not only meet the requirement that the polydextrose and water-soluble polyether glycol do not degrade or become brittle to cause distortion and deformation in the unblocking and preliminary shaping stage, but also can react with the unblocked isocyanate group. The honeycomb activated carbon with a urea group cross-linked three-dimensional network structure gradually formed in the unblocking and hot air drying process can resist the capillary pressure generated by water evaporation in the hot air drying process, reduce the generation of cracks and improve the yield.

A TiO2 free hard capsule shell including a water-soluble film forming compound selected from the group consisting of a water-soluble cellulose compound and gelatin. The shell optionally contains a gelling agent and / or a gelling aid. The capsule shell further includes ZnO, and CaCO3, wherein ZnO and CaCO3 are in a suitable amount to provide a white color to the film. A TiO2 free suspension for preparing the hard capsule and a capsule product comprising the TiO2 free hard capsule filled with a formulation comprising an active ingredient.

Pin sleeve, manufactured by at least the following steps: - Drying of a cellulose compound obtained as a mixture of at least two cellulose granules, - Feeding the dried cellulose compound into an extruder designed for processing cellulose granules, - optional addition of a blowing agent to the cellulose compound introduced into the extruder, - Melting of the cellulose compound introduced into the extruder in the extruder, - Producing a tubular strand from the cellulose compound melt using the extruder, - Calibrating and cooling the tubular strand supplied by the extruder using a vacuum calibration device, - Cutting the calibrated and cooled tubular strand to length to obtain the pin sleeve.

Pin sleeve, manufactured by at least the following steps: - Drying of a cellulose compound obtained as a mixture of at least two cellulose granules, - Feeding the dried cellulose compound into an extruder designed for processing cellulose granules, - optional addition of a blowing agent to the cellulose compound introduced into the extruder, - Melting of the cellulose compound introduced into the extruder in the extruder, - Producing a tubular strand from the cellulose compound melt using the extruder, - Calibrating and cooling the tubular strand supplied by the extruder using a vacuum calibration device, - Cutting the calibrated and cooled tubular strand to length to obtain the pin sleeve.

To provide a resin composition containing a polyolefin which has sufficient strength and thermal degradability or biodegradability and has high processability as general-purpose plastic.SOLUTION: A degradable resin composition contains a polyolefin-containing resin, a cellulosic compound, and an organic acid metal salt. A molding can be provided which has sufficient strength as general-purpose plastic before heating for degradation but which allows the polyolefin-containing resin to be degraded by the heating for degradation.SELECTED DRAWING: None

The disclosed nonaqueous electrolyte secondary battery includes a positive electrode (11), a negative electrode (12), a separator (50) disposed between the positive electrode (11) and the negative electrode (12), a nonaqueous electrolyte, and a separator (53) disposed in at least one region selected from the group consisting of a region between the positive electrode (11) and the separator (50) and a region between the negative electrode (12) and the separator (50). The negative electrode (12) is a negative electrode in which a metal, which is a negative electrode active material, is precipitated during charging and the metal is dissolved during discharging. The spacer (53) contains a resin and a filler. The resin contains a cellulose compound.

Disclosed is a coating composition including, in relation to 100% of the weight thereof: 10-90 wt. % of at least one film-forming polymer selected from methyl cellulose, hydroxy propyl methyl cellulose, hydroxy propyl cellulose, hydroxy ethyl cellulose, sodium carboxy methyl cellulose, ethyl cellulose, PVA (polyvinyl alcohols), PVA-PEG (polyethylene glycol) copolymers, polyvinyl acetate, polyvinyl pyrrolidones (PVP), vinylpyrrolidone-vinyl acetate copolymers, alginates, pectin, arabic gum, guar gum, carrageenans, xanthan gum, inulin, chitosan, methacrylic acid copolymer, ethyl acetate, or polyethylene glycol-polypropylene glycol (PEG-PPG) copolymer; 0-50 wt. % of at least one auxiliary coating agent selected from diluents, surfactants, plasticisers and anti-foaming agents; and 10-50 wt. % of a whitening filler free of titanium dioxide including at least one alkaline or alkaline earth salt of a fatty acid and at least one cellulose compound selected from cellulose, cellulose powder, microcrystalline cellulose, or a mixture of the components.

The invention discloses a preparation method of a high-strength heat-resistant polycarbonate film. The preparation method comprises the following steps: (1) preparing a graphene-cellulose compound; (2) carrying out alkylation on the graphene-cellulose compound, and then adding tea polyphenol for modification treatment to obtain a modified compound; (3) activating the modified compound, and then adding glycidyl methacrylate to obtain filler powder; and (4) mixing the filler powder, ABS high rubber powder and dried polycarbonate to form a mixed material, carrying out melt granulation on the mixed material to obtain granules, drying the granules, and carrying out blow molding to obtain the high-strength heat-resistant polycarbonate film. The polycarbonate film prepared by the method has good strength and heat resistance, the tensile strength and the thermal deformation temperature are relatively high, and the durability of the polycarbonate film is improved.

The invention relates to a cellulose toughened water-based non-isocyanate polyurethane elastomer with photoresponsiveness and a preparation method thereof, and the preparation method comprises the following steps: firstly, carrying out pressurized reaction on epoxide and carbon dioxide to obtain cyclic carbonate; and mixing the cyclic carbonate with a cellulose compound and an amine compound, and carrying out a curing reaction to obtain the cellulose toughened water-based non-isocyanate polyurethane elastomer. Compared with the prior art, the preparation conditions are regulated, controlled and optimized, the natural renewable biomass material cellulose is added for toughening, and the flexible and environment-friendly elastomer material with photoresponse is prepared through a simple, convenient and efficient method. The elastomer material has wide application prospects in multiple fields including anti-counterfeiting, information storage, flexible display and the like.

A process for the manufacture of an anode layer for a polymer electrolyte membrane electrolyser, the process comprising the steps of: (i) forming a catalyst ink comprising an iridium- and / or ruthenium-containing OER catalyst, an ionomer, a solvent, and a cellulose compound; (ii) applying the catalyst ink to a substrate to form the anode layer; and (iii) drying the anode layer. Also described are anode layers for a polymer electrolyte membrane electrolyser, the anode layer comprising an iridium - and / or ruthenium-containing OER catalyst, an ionomer, and a cellulose compound.

Provided is a conductive paste capable of forming an internal electrode layer having a smooth dried film and excellent adhesiveness, an electronic component, and a multilayer ceramic capacitor, in which a fine conductive powder and a ceramic powder are used for the miniaturization and thinning of a multilayer ceramic electronic component. The conductive paste contains a conductive powder, a ceramic powder, a dispersant, a binder resin, and an organic solvent, wherein the binder resin contains a high molecular compound in which a cellulose compound and a polyvinyl acetal compound are bonded via a sulfur atom, the molar ratio of the sulfur atom contained in the high molecular compound to the cellulose compound is 0.3 to 1.7, and the weight average molecular weight of the high molecular compound is 30,000 or more and less than 150,000.

The invention relates to the technical field of bauxite flotation, in particular to a flotation combined inhibitor and a preparation method and application thereof. The flotation combined inhibitor is prepared from the following raw materials in parts by mass: 30 to 50 parts of composite phosphate, 20 to 40 parts of cellulose compounds, 10 to 30 parts of natural polymer products and 5 to 10 parts of sodium silicate. According to the flotation combined inhibitor, efficient desulfurization of high-sulfur bauxite is achieved through synergistic targeted inhibition of composite phosphate, cellulose compounds and natural polymer products; meanwhile, the floatability and the recovery efficiency of the aluminum minerals in the high-sulfur bauxite are guaranteed through the strategies of selective design, low-dosage optimization and stable pH adjustment, and finally the total recovery rate of the aluminum minerals in the high-sulfur bauxite and the desulfurization effect of the high-sulfur bauxite are synchronously improved in the step-by-step flotation process.

The present invention is in the field of cleaning compositions. More particularly, the present invention relates to a laundry cleaning composition for providing improved cleaning benefit. enhanced stain removal benefit. There is a need for a ‘eco-friendly’ cleaning composition having cleaning boosters that provides enhanced cleaning efficacy It provides a laundry cleaning composition providing enhanced. It is found that a cleaning composition comprising specific amount of a water-soluble cellulose containing compound along with select cleaning boosters provides a stable liquid cleaning composition that has a good ‘eco-friendly’ profile and provides improved stain removal benefit. The present invention further describes a unit does product and a process for cleaning a substrate involving the cleaning composition.