46 results about "Ethyl methyl cellulose" patented technology

The invention relates to an oral medicinal formulation of moxifloxacin and its preparation method, which comprises Moxifloxacin or its salt and/or its hydrate, and at least one film forming material for preparing intermediate particles of the preparation selected from hydroxy propyl methyl cellulose, hydroxy ethyl methyl cellulose, cellulose methyl, hydroxy propyl cellulose, hydroxy ethyl cellulose, sodium carboxymethyl cellulose, polyacrylic resins, polyethylene glycol, polyvinyl pyrrolidon-vinyl acetate copolymer, polyvinyl alcohol-polyethylene glycol grafted copolymer, carbopol, gelatine, poloxamer and polyvinyl pyrrolidon. The invention also discloses the process for preparing the pharmaceutical preparation.

An intravaginal bio-erodible microbicidal barrier device. The device comprises (a) at least one micronized compound selected from the group consisting of cellulose acetate phthalate and hydroxypropylmethylcellulos- e phthalate, and (b) at least one water soluble or water dispersible cellulose compound selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethylmethylcellulose, hydroxyethylethylcellulose and hydroxypropylethylcellulose; or a pectin, such as an apple pectin. The device is prepared by a combination of foaming, freezing and freeze-drying processes.

The present composition is capable of forming a particle film and comprises: (a) less than 99.65% by weight of at least one particle; (b) at least one volumizing agent selected from the group consisting of: (i) cellulose selected from the group consisting of ethyl hydroxy ethyl cellulose, hydroxy ethyl cellulose, hydroxy propyl cellulose, hydroxy ethyl methyl cellulose, hydroxy propyl methyl cellulose, methyl cellulose, ethyl cellulose, and ethyl methyl cellulose and present in an amount greater than 0.35% by weight; and (ii) non-cellulosic component or cellulose other than said cellulose (i) present in an amount of at least 0.05% by weight; and optionally (c) at least one spreader. The composition may be used to form agricultural films.

The invention discloses environment-friendly flexible interior wall putty and a preparation method thereof. The environment-friendly flexible interior wall putty comprises the following components by mass percent: 20-26% of water, 20-27% of acrylic emulsion, 5-10% of heavy calcium carbonate powder, 10-15% of light calcium carbonate powder, 12-19% of talcum powder, 5-7% of blanc fixe, 5-8% of bentonite, 2-3.7% of hydroxyethyl methyl cellulose ether, 1-3% of an antifreezing agent, 0.1-0.3% of a defoamer and 0.1-0.3% of a dispersant. The interior wall putty disclosed by the invention has the advantages of good flexibility, strong waterproofness, good crack resistance, fine and smooth surface texture after being scraped and the like, and is environment-friendly and not easy to atomize.

The invention discloses a chloroethylene suspension polymerization terminator and a preparation method and a use method thereof, belonging to a terminator used in a chloroethylene polymerization process. The chloroethylene suspension polymerization terminator is characterized by being an aqueous emulsion dispersion liquid and consisting of the following raw materials in parts by weight: 100 parts of deionized water, 2-30 parts of organic tin thermal stabilizer, 0.3-4.5 parts of polyvinyl alcohol I, 0-3.1 parts of polyvinyl alcohol II, 0.2-4.5 parts of cellulose ether and 0.1-3.5 parts of chain terminator, wherein the deionized water is industrial secondary desalted water; the alcoholysis degree of the polyvinyl alcohol I is between 75-85 percent; the alcoholysis degree of the polyvinyl alcohol II is between 50-60 percent; and the cellulose ether is methyl cellulose (MC), hydroxyethylmethylcellulose (HEC) or hydroxypropyl methyl cellulose (HPMC). The invention provides a chloroethylene suspension polymerization terminator which can be used for effectively terminating a chloroethylene polymerization reaction and remarkably improving the aging whiteness and heat resistance of polymerized resin, and the preparation method and the use method thereof.

The invention discloses an insulating dry powder mortar to stick face brick, which comprises the following parts: polystyrene foam particle, cement, ultrafine yarn, fly ash, hydroxyethylmethylcellulose ether, vinyl acetate/ethane copoly-gel powder, wood fiber and carboxylic group block copolymer gel powder, wherein the cement, hydroxyethylmethylcellulose ether, vinyl acetate/ethane copoly-gel powder, wood fiber and fly ash are blended evenly to obtain middle dried powder A; the cement and carboxylic group block copolymer gel powder are mixed evenly to obtain the middle dried powder B; the cement, fly ash and polystyrene foam particle are blended evenly to generate middle dried powder C; the middle dried powder A, B and C are mixed together to produce dried powder of insulating mortar, which can be stirred into slurry after adding fitful water in the dried powder.

The invention relates to a grouting material. The grouting material is prepared by mixing silicate cement, hydroxyl ethyl methyl cellulose, natural guar gum, silica fume, glycine betaine and water in a weight ratio of (1-1.2):(0.001-0.008):(0.001-0.01):(0.1-0.2):(0.001-0.005):1. According to the grouting material, the slurry viscosity and condensing performance can be improved due to the interaction of silica fume, hydroxyl ethyl methyl cellulose and natural guar gum, the viscosity and strength can be further improved due to the glycine betaine and natural guar gum, the elastic performance can be regulated according to the condition, and the aqueous dispersion effect in various water qualities can be resisted.

A method for imparting a stress tolerance to a plant that can provide the plant with such a stress tolerance that enhances growth in an environment where a variety of stresses on the plant occur is provided. The method for imparting a stress tolerance to a plant includes the step of applying, to a plant placed under a stressful cultivation condition that yields a plant stress level of 111 to 200%, a plant stress tolerance imparting composition containing at least one cellulose derivative selected from the group consisting of methyl cellulose (MC), hydroxymethyl cellulose (HMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), propyl cellulose (PC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC), hydroxyethyl propyl cellulose (HEPC), methyl ethyl cellulose (MEC), methyl propyl cellulose (MPC) and ethyl propyl cellulose (EPC); catechins; and water, the cellulose derivative being contained in an amount of 45.0 to 99.5 wt % of the total components of the plant stress tolerance imparting composition except water. The present invention also provides the plant stress tolerance imparting composition and use of the plant stress tolerance imparting composition.

The invention relates to the technical field of building materials, particularly to mildew-proof and antibacterial putty powder, a preparation method and a use method thereof, wherein the mildew-proofand antibacterial putty powder is prepared by mixing the following materials: Portland cement, ash calcium, talcum powder, hydroethyl methyl cellulose, a mildew preventive, polyvinyl alcohol and amylase. The use method of the putty powder comprises the step of uniformly mixing the raw materials with water according to a mass ratio of (10-5):3. Compared with the prior art, the mildew-proof additive selected for specifically inhibiting mildew on the wall surface is compounded with putty to achieve the mildew-proof and antibacterial functional putty, so that water resistance, moisture resistanceand aging resistance of a wall decorative surface layer are achieved, and the defects that mildew and black spots grow on a wall due to indoor air moisture or wall surface permeation are overcome. According to the putty prepared by the method disclosed by the invention, all harmful substances, mould resistance and all physical properties meet the standards of GB18582-2008 (water-based wall putty), HG/T 3950-2007 (table 2) and JG/T 298-2020 (water-resistant N).

The invention discloses modified hydroxyethyl methyl cellulose for an enhanced ceramic tile adhesive. The modified hydroxyethyl methyl cellulose is prepared from the following raw materials in percentage by mass: 54%-94% of hydroxyethyl methyl cellulose, 5%-40% of starch ether, 0.5%-3% of a dispersing agent and 0.5%-3% of a rheological agent, wherein the hydroxyethyl methyl cellulose is prepared from cellulose powder, caustic soda granules, caustic soda liquid, chloromethane and ethylene oxide. The preparation method comprises the following steps: (1) weighing the raw materials, (2) mixing cellulose powder, caustic soda particles, liquid caustic soda, chloromethane and ethylene oxide, carrying out etherification reaction, and then sequentially carrying out neutralization, washing, centrifugation, drying and crushing to obtain hydroxyethyl methyl cellulose, and (3) mixing and stirring hydroxyethyl methyl cellulose, starch ether, a dispersing agent and a rheological agent to obtain the adhesive. The obtained product is stable in quality, has the function of improving the tensile bonding strength of the ceramic tile adhesive, is applied to modern ceramic tiles with large sizes and large masses, and can remarkably improve the use safety of the ceramic tiles.

The invention discloses a decolorizing resin for lactase. The decolorizing resin comprises styrene, divinylbenzene, gelatin, juncus roemerianus, methyl isobutyl carbinol, hydroxyethyl methylacrylate, triallyl cyanurate, N-phenylmaleimide, chitosan, vitamin C magnesium phosphate, benzoyl peroxide, polyvinyl alcohol, tributyl phosphate, salicylic acid, hydroxyethyl methyl cellulose and a pore-foaming agent. The invention also discloses a preparation method of the decolorizing resin. The preparation method comprises the following steps of: mixing gelatin, chitosan, hydroxyethyl methyl cellulose, polyvinyl alcohol and salicylic acid to prepare a liquid phase; mixing styrene, divinylbenzene, methyl isobutyl carbinol, hydroxyethyl methylacrylate, triallyl cyanurate, N-phenylmaleimide, benzoyl peroxide, tributyl phosphate and a pore-foaming agent to prepare an oil phase; mixing the juncus roemerianus fiber with vitamin C magnesium phosphate to prepare a solid phase; and mixing the three phases to prepare the polymer. The decolorizing resin is high in decoloration efficiency, short in time and small in lactase activity loss after decoloration.

The invention relates to a method and a device for preparing modified cellulose, the device comprises a reaction kettle, the reaction kettle is internally provided with a solid-liquid space for reaction and a gas phase space for accommodating gas overflowing from the solid-liquid space, an outer circulation system is arranged outside the reaction kettle, the inlet end of the outer circulation system is communicated with the gas phase space in the reaction kettle, the inlet end of the outer circulation system is communicated with the gas phase space, and the outlet end of the outer circulatingsystem extends into the reaction kettle. The device is used for preparing hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose and other substances from cellulose, when cellulose etherification reaction is carried out, liquid in the solid-liquid space is heated and gasified, enters the gas-phase space firstly and then circularly enters the reaction kettle through the outer circulation system, so that the pressure in the kettle can be reduced, and the overall safety performance is guaranteed, the pressure resistance and sealing performance of the reaction kettle can be reduced, meanwhile, the liquid continuously passes through the outer circulation system and returns into the reaction kettle, so that the reaction liquid in the reaction kettle is always in an excessive state, the reaction speed is high, and the production efficiency is high.

The present invention provides a liquid meal flavoring agent which has health care function. The present invention comprises liquid flavoring agent, soluble or suspended differential fiber. The concentration of the soluble or suspended differential fiber is 0.005%-25 %( a weight-to-volume ratio), and the better concentration is 0.005%-10% (a weight-to-volume ratio). The soluble or suspended differential fiber is selected from methylcellulose, hydroxide propyl methyl cellulose, hydroxide propyl ethyl cellulose, hydroxide propyl cellulose, hydroxide ethyl cellulose, hydroxide ethyl methyl cellulose, hydroxide methyl cellulose, carboxymethyl cellulose and sodium, kalium, calcium salt and so on, or one kind or kinds of microcrystalline cellulose. The flavoring agents are vinegar, sauce and cooking wine. Two methods of making the two kinds of liquid meal flavoring agents are also provided. The present invention has certain viscosity and good thermal stability, can replenish the human needed soluble or suspended differential fiber, has health care function, is good to taste and convenient to take, is not easy to forget taking, and has simple and practical manufacturing method.

The invention discloses a medicine for treating allergic rhinitis. The medicine comprises 0.04%-0.08% of mometasone furoate, 0.5%-0.8% of glycerol; 1.5%-2.0% of sesame oil; 0.1%-0.5% of sodium chloride, 0.5%-1.5% of a mixture of carboxypropyl cellulose, hydroxyethyl methyl cellulose and microcrystalline cellulose, 2%-3% of a mixture of Tween 80 and lecithin, 0.05%-0.1% of peppermint oil, a properamount of a sodium citrate buffer solution and the balance of water for injection. Experiments show that the medicine disclosed by the invention can be used for effectively treating allergic rhinitisand effectively reducing the occurrence rate of adverse reactions.

The invention mainly relates to the technical field of thin film processing, and discloses an oil-proof and antibacterial food packaging film which is prepared from, by weight, 32-34 parts of polyethylene glycol terephthalate, 25-27 parts of modified polypropylene, 21-23 parts of polytetrafluoroethylene, 7-9 parts of modified chitosan, 2.2-2.4 parts of hydroxyethyl methylcellulose and 1.3-1.5 parts of cinnamyl aldehyde. The oil-proof and antibacterial food packaging film is high in strength, high in oil stain resistance, oil stain permeability can be effectively prevented, antibacterial rate reaches 89.4%, bacteria breeding on the surface of food can be effectively avoided, the shelf life of the food is prolonged, the polyethylene glycol terephthalate, the modified polypropylene and the polytetrafluoroethylene are mixed, molten and combined each other, the strength of the packaging film can be enhanced, the packaging film is resistant to scratch and abrasion, safe and free from toxicity and can be repeatedly used after being cleaned, cost is saved, and environments are protected.

The invention provides a special admixture for self-compacting concrete and a preparation method and application thereof, and the special admixture for self-compacting concrete comprises the following materials in parts by weight: 370-400 parts of polycarboxylic acid water-reducing ether; 100 to 130 parts of polycarboxylic acid pure slump retaining type ether; 0-20 parts of borax; 8 to 12 parts of sodium gluconate; 8-12 parts of white sugar; 3-7 parts of sodium citrate; 9-27 parts of polyethylene glycol; 0.1 to 0.4 part of polyacrylamide; 0.1 to 0.5 percent of hydroxyethyl methyl cellulose ether; 0.1 to 0.5 part of a defoaming agent; 0.2 to 0.6 part of an air entraining agent; and 430-460 parts of water. The admixture special for the self-compacting concrete provided by the invention is large in flowability and good in wrapping, can solve the problem of engineering structures which cannot be constructed or are difficult to construct by using common concrete, and meanwhile, avoids the engineering quality problem caused by vibration leakage and excessive vibration of the common concrete. By adopting the admixture special for the self-compacting concrete provided by the invention, when the concrete is constructed, time and labor are saved, noise is avoided, the construction speed is high, the labor intensity of workers is reduced, and energy is saved.

The invention discloses a pharmaceutical composition for treating allergic rhinitis and application thereof, and the pharmaceutical composition comprises the following raw materials in percentage by weight: 0.12%-0.24% of mometasone furoate, 0.5%-0.8% of glycerol, 1.5%-2.0% of sesame oil, 0.1%-0.5% of sodium chloride, 0.5%-1.5% of a mixture of hydroxypropyl cellulose, hydroxyethyl methyl cellulose and microcrystalline cellulose, and the balance of water. The injection comprises the following components in percentage by weight: 10-20% of sodium citrate, 0.4-1.2% of alkyl glucoside, 0.05-0.1% of peppermint oil, a proper amount of sodium citrate buffer solution and the balance of water for injection. On the basis of early-stage research and development achievements, the formula composition of the preparation is further optimized, and animal experiments verify that compared with the prior art, the preparation has the advantages of quick response and low irritation, and is suitable for clinical popularization and application.